OFOillifliiiir i 08000549 f

Cesium -137 Radium -226 Potassium-40 and Selected Stable Elements in Fish Populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan)Lake Winnipeg (Manitoba) and ExperimentalLakes Area (Northwestern Ontario)

Western Region Department of Fisheries and Oceans Winnipeg Manitoba R3T 2N6

October 1981

Canadian Data Report of Fisheries amp Aquatic Sciences No 293

Canadian Data Report of

Fisheries and Aquatic Sciences

These reports provide a medium for filing and archiving data compilations where little or no analysis is included Such compilations commonly will have been prepared in su pport of other jou rna I pu blications one ports The su bject ma tter of Da ta Re port s renects the broad interests and policies of the Department of Fi sheries and Oceans namely fisheries management technology and development ocean sciences and aquatic environment s relevant to Canada

Numbers 1-25 in this series were issued as Fisheries and Marine Service Data Records Numbers 26-160 were issued as Department of Fisheries and the Environshyment Fisheries and Marine Service Data Report s The current series name was changed with report number 161

Data Reports are not intended for general distribution and the content s must not be referred to in other publications without prior written clearance from the issuing es tablishment The correct citation appears abo ve the abstract of each report

Rapport statistique canadien des

sciences halieutiques et aquatiques

Ces rapports servent de base it la compilation des donnees de classement et darchives pour lesquelles il y a peu ou point danalyse Cette compilation aura dordinaire ele preparee pour appuyerdautres publications ou rapports Les sujets des Rapports statistiques refletent la vaste gal11me des interets et politiques du Ministere des Peches et des Oceans notamment gestion des peches techniques et developshyrement sciences oceaniques et environnements aquatiques au Canada

Les numeros I a 25 de cette serie ont ete publies a titre de Records statistique s Service de s peches et de la mer Les numeros 26-160 ont ete publies atitre de Rapports statistiques du Service des peches et de la Iller Ministere des Peches et de lEnvironnement Le nom de la se lie a e( l110difie a partir du numero 161

Les RajJp0rls statistiques ne sont pa s prepares pour une va ste di stribution et leur contellu ne doit pas etre mentionne dans line publication sans autorisation ecrite prealable de Ietabli sse ment auteur Le titre eX ltlc t parai au haul du resum e de chaque Imiddota pport

Canadian Data Report of

Fisheries and Aquatic Sciences 293

October 1981

CESIUM-137 RADIUM-226 POTASSIUM-40 AND SELECTED STABLE ELEMENTS IN FISH

POPU~TIONS FROM GREAT SLAVE LAKE (NWT) LOUIS LAKE (SASKATCHEWAN) LAKE

WINNIPEG (MANITOBA) AND EXPERIMENTAL LAKES AREA (NORTHWESTERN ONTARIO)

by

S E M Elliott C Burns-Flett R H Hesslein G J Brunskill and A Lutz

Western Region

Department of Fisheries and Oceans

Winnipeg Manitoba R3T 2N6

This is the 41st Data Report

from the Western Region Winnipeg

i i

copy Minister of Supply and Services Canada 1981

Cat no Fs 97-13293 ISSN 0706-6465

Correct citation for this publication

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWI) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 iv + 20 p

iii

TABLE OF CONTENTS

ABSTRACTRESUME iv

INTRODUCTION bull 1

METHODS 1

RESUL TS 2

ACKNOWLEDGMENTS bull 3

REFERENCES 3

LIST OF TABLES

Table Page

1 137Cs 226Ra and 40K activities in fish samples 4

2 Means and one standard deviation for activities of 137Cs and 226Ra and for total weight and fork length of each fish population 11

3 137Cs activities in muscle bone skin and viscera of three 1ake trout from Lake 223 ELA 12

4 Concentrations of calcium Qotassium copper and zinc ratios of Ca 226Ra and K137Cs and percent abundance of 40K in fi sh samples 13

5 Means and one standard deviations for concentrations of calcium potassium copper and zinc of each fish population 16

6 Activities of 137Cs and 226Ra in surface water samples from Great Slave Lake stations Lake 302S ELA and Lake Winnipeg 17

LIST OF FIGURES

Figure

1 Frequency di stributions of 137Cs within each popul ation sampl ed 18

2 Frequency distributions of 226Ra within each population sampled 20

iv

ABSTRACT

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 i v + 20 p

Activities of 137Cs resulting fran globally distributed atmospheric fallout and natural activities of 226Ra and 40K were determined for nine species of fish frOO1 five lakes in the Northwest Territories Manitoba Saskatchewan and northwestern Ontario Sampl e si zes of approximately 25 fish were obtained for each species and location Selected subsamples were also analyzed for the stable elements Ca Zn Cu and K Surface water samshyples were collected and activities of 137Cs and 226Ra were determined in both dissolved and particulate fractions

Analytical methods are given and chemical results total weight and fork 1ength are tabul ated for each fi she Popul at ion means and frequency distributions of 137Cs and 226Ra indicate activities which are specific to location and species respectively

Key words coreaonus c1u~eaformis Prosopi urn cyl i ndraceum Coregonus arte ii Salve inus namaycush St i zostedion canadense Lota lota Catostomus catostomus - shy

RESUME

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 r adi um-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NW L) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern OntariO) Can Data Rep_ Fish Aquat Sci 293 i v + 20 p

Les auteurs ont determine laction exercee par le 137Cs (provenant de ret~bees atmospheriques reparties globalement) et laction naturelle exshyercee par le 226Ra et le 40K pour neuf especes de poissons de cinq lacs choisis dans les Territoires du Nord-Ouest le Manitoba la Saskatchewan et 1e nord-Ouest de lOntario Il s ont prel eve environ 25 poi ssons de chaque espece dans chacun des lacs Ils ont aussi analyse des sous-echantillons du point de vue de leur teneur en Cat Zn Cu et K Des echantillons deau superficielle furent aussi preleves et lion a determine laction exercee par le 137Cs et le 226Pa tant dans des fractions dissoutes que dans celles de particules

Louvrage contient les methodes analytiques employees et il donne les resultats chimiques le poids total et la longueur totale pour chaque poisshy~~9 Grace aux moyennes (popul at ions) et aux repartit ions (frequence) du

Cs et du 226Ra les auteurs ont pu relever le degre de laction exercee dans chaque 1 ieu et chez chaque espece

Mots-cl es Coregonus cl upeaformis Prosopi urn cyl i ndraceum Coregonus artedii Salvelinus namaycush Stizostedion canadense Lota lota Catostomus catostomus

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

Canadian Data Report of

Fisheries and Aquatic Sciences

These reports provide a medium for filing and archiving data compilations where little or no analysis is included Such compilations commonly will have been prepared in su pport of other jou rna I pu blications one ports The su bject ma tter of Da ta Re port s renects the broad interests and policies of the Department of Fi sheries and Oceans namely fisheries management technology and development ocean sciences and aquatic environment s relevant to Canada

Numbers 1-25 in this series were issued as Fisheries and Marine Service Data Records Numbers 26-160 were issued as Department of Fisheries and the Environshyment Fisheries and Marine Service Data Report s The current series name was changed with report number 161

Data Reports are not intended for general distribution and the content s must not be referred to in other publications without prior written clearance from the issuing es tablishment The correct citation appears abo ve the abstract of each report

Rapport statistique canadien des

sciences halieutiques et aquatiques

Ces rapports servent de base it la compilation des donnees de classement et darchives pour lesquelles il y a peu ou point danalyse Cette compilation aura dordinaire ele preparee pour appuyerdautres publications ou rapports Les sujets des Rapports statistiques refletent la vaste gal11me des interets et politiques du Ministere des Peches et des Oceans notamment gestion des peches techniques et developshyrement sciences oceaniques et environnements aquatiques au Canada

Les numeros I a 25 de cette serie ont ete publies a titre de Records statistique s Service de s peches et de la mer Les numeros 26-160 ont ete publies atitre de Rapports statistiques du Service des peches et de la Iller Ministere des Peches et de lEnvironnement Le nom de la se lie a e( l110difie a partir du numero 161

Les RajJp0rls statistiques ne sont pa s prepares pour une va ste di stribution et leur contellu ne doit pas etre mentionne dans line publication sans autorisation ecrite prealable de Ietabli sse ment auteur Le titre eX ltlc t parai au haul du resum e de chaque Imiddota pport

Canadian Data Report of

Fisheries and Aquatic Sciences 293

October 1981

CESIUM-137 RADIUM-226 POTASSIUM-40 AND SELECTED STABLE ELEMENTS IN FISH

POPU~TIONS FROM GREAT SLAVE LAKE (NWT) LOUIS LAKE (SASKATCHEWAN) LAKE

WINNIPEG (MANITOBA) AND EXPERIMENTAL LAKES AREA (NORTHWESTERN ONTARIO)

by

S E M Elliott C Burns-Flett R H Hesslein G J Brunskill and A Lutz

Western Region

Department of Fisheries and Oceans

Winnipeg Manitoba R3T 2N6

This is the 41st Data Report

from the Western Region Winnipeg

i i

copy Minister of Supply and Services Canada 1981

Cat no Fs 97-13293 ISSN 0706-6465

Correct citation for this publication

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWI) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 iv + 20 p

iii

TABLE OF CONTENTS

ABSTRACTRESUME iv

INTRODUCTION bull 1

METHODS 1

RESUL TS 2

ACKNOWLEDGMENTS bull 3

REFERENCES 3

LIST OF TABLES

Table Page

1 137Cs 226Ra and 40K activities in fish samples 4

2 Means and one standard deviation for activities of 137Cs and 226Ra and for total weight and fork length of each fish population 11

3 137Cs activities in muscle bone skin and viscera of three 1ake trout from Lake 223 ELA 12

4 Concentrations of calcium Qotassium copper and zinc ratios of Ca 226Ra and K137Cs and percent abundance of 40K in fi sh samples 13

5 Means and one standard deviations for concentrations of calcium potassium copper and zinc of each fish population 16

6 Activities of 137Cs and 226Ra in surface water samples from Great Slave Lake stations Lake 302S ELA and Lake Winnipeg 17

LIST OF FIGURES

Figure

1 Frequency di stributions of 137Cs within each popul ation sampl ed 18

2 Frequency distributions of 226Ra within each population sampled 20

iv

ABSTRACT

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 i v + 20 p

Activities of 137Cs resulting fran globally distributed atmospheric fallout and natural activities of 226Ra and 40K were determined for nine species of fish frOO1 five lakes in the Northwest Territories Manitoba Saskatchewan and northwestern Ontario Sampl e si zes of approximately 25 fish were obtained for each species and location Selected subsamples were also analyzed for the stable elements Ca Zn Cu and K Surface water samshyples were collected and activities of 137Cs and 226Ra were determined in both dissolved and particulate fractions

Analytical methods are given and chemical results total weight and fork 1ength are tabul ated for each fi she Popul at ion means and frequency distributions of 137Cs and 226Ra indicate activities which are specific to location and species respectively

Key words coreaonus c1u~eaformis Prosopi urn cyl i ndraceum Coregonus arte ii Salve inus namaycush St i zostedion canadense Lota lota Catostomus catostomus - shy

RESUME

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 r adi um-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NW L) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern OntariO) Can Data Rep_ Fish Aquat Sci 293 i v + 20 p

Les auteurs ont determine laction exercee par le 137Cs (provenant de ret~bees atmospheriques reparties globalement) et laction naturelle exshyercee par le 226Ra et le 40K pour neuf especes de poissons de cinq lacs choisis dans les Territoires du Nord-Ouest le Manitoba la Saskatchewan et 1e nord-Ouest de lOntario Il s ont prel eve environ 25 poi ssons de chaque espece dans chacun des lacs Ils ont aussi analyse des sous-echantillons du point de vue de leur teneur en Cat Zn Cu et K Des echantillons deau superficielle furent aussi preleves et lion a determine laction exercee par le 137Cs et le 226Pa tant dans des fractions dissoutes que dans celles de particules

Louvrage contient les methodes analytiques employees et il donne les resultats chimiques le poids total et la longueur totale pour chaque poisshy~~9 Grace aux moyennes (popul at ions) et aux repartit ions (frequence) du

Cs et du 226Ra les auteurs ont pu relever le degre de laction exercee dans chaque 1 ieu et chez chaque espece

Mots-cl es Coregonus cl upeaformis Prosopi urn cyl i ndraceum Coregonus artedii Salvelinus namaycush Stizostedion canadense Lota lota Catostomus catostomus

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

Canadian Data Report of

Fisheries and Aquatic Sciences 293

October 1981

CESIUM-137 RADIUM-226 POTASSIUM-40 AND SELECTED STABLE ELEMENTS IN FISH

POPU~TIONS FROM GREAT SLAVE LAKE (NWT) LOUIS LAKE (SASKATCHEWAN) LAKE

WINNIPEG (MANITOBA) AND EXPERIMENTAL LAKES AREA (NORTHWESTERN ONTARIO)

by

S E M Elliott C Burns-Flett R H Hesslein G J Brunskill and A Lutz

Western Region

Department of Fisheries and Oceans

Winnipeg Manitoba R3T 2N6

This is the 41st Data Report

from the Western Region Winnipeg

i i

copy Minister of Supply and Services Canada 1981

Cat no Fs 97-13293 ISSN 0706-6465

Correct citation for this publication

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWI) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 iv + 20 p

iii

TABLE OF CONTENTS

ABSTRACTRESUME iv

INTRODUCTION bull 1

METHODS 1

RESUL TS 2

ACKNOWLEDGMENTS bull 3

REFERENCES 3

LIST OF TABLES

Table Page

1 137Cs 226Ra and 40K activities in fish samples 4

2 Means and one standard deviation for activities of 137Cs and 226Ra and for total weight and fork length of each fish population 11

3 137Cs activities in muscle bone skin and viscera of three 1ake trout from Lake 223 ELA 12

4 Concentrations of calcium Qotassium copper and zinc ratios of Ca 226Ra and K137Cs and percent abundance of 40K in fi sh samples 13

5 Means and one standard deviations for concentrations of calcium potassium copper and zinc of each fish population 16

6 Activities of 137Cs and 226Ra in surface water samples from Great Slave Lake stations Lake 302S ELA and Lake Winnipeg 17

LIST OF FIGURES

Figure

1 Frequency di stributions of 137Cs within each popul ation sampl ed 18

2 Frequency distributions of 226Ra within each population sampled 20

iv

ABSTRACT

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 i v + 20 p

Activities of 137Cs resulting fran globally distributed atmospheric fallout and natural activities of 226Ra and 40K were determined for nine species of fish frOO1 five lakes in the Northwest Territories Manitoba Saskatchewan and northwestern Ontario Sampl e si zes of approximately 25 fish were obtained for each species and location Selected subsamples were also analyzed for the stable elements Ca Zn Cu and K Surface water samshyples were collected and activities of 137Cs and 226Ra were determined in both dissolved and particulate fractions

Analytical methods are given and chemical results total weight and fork 1ength are tabul ated for each fi she Popul at ion means and frequency distributions of 137Cs and 226Ra indicate activities which are specific to location and species respectively

Key words coreaonus c1u~eaformis Prosopi urn cyl i ndraceum Coregonus arte ii Salve inus namaycush St i zostedion canadense Lota lota Catostomus catostomus - shy

RESUME

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 r adi um-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NW L) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern OntariO) Can Data Rep_ Fish Aquat Sci 293 i v + 20 p

Les auteurs ont determine laction exercee par le 137Cs (provenant de ret~bees atmospheriques reparties globalement) et laction naturelle exshyercee par le 226Ra et le 40K pour neuf especes de poissons de cinq lacs choisis dans les Territoires du Nord-Ouest le Manitoba la Saskatchewan et 1e nord-Ouest de lOntario Il s ont prel eve environ 25 poi ssons de chaque espece dans chacun des lacs Ils ont aussi analyse des sous-echantillons du point de vue de leur teneur en Cat Zn Cu et K Des echantillons deau superficielle furent aussi preleves et lion a determine laction exercee par le 137Cs et le 226Pa tant dans des fractions dissoutes que dans celles de particules

Louvrage contient les methodes analytiques employees et il donne les resultats chimiques le poids total et la longueur totale pour chaque poisshy~~9 Grace aux moyennes (popul at ions) et aux repartit ions (frequence) du

Cs et du 226Ra les auteurs ont pu relever le degre de laction exercee dans chaque 1 ieu et chez chaque espece

Mots-cl es Coregonus cl upeaformis Prosopi urn cyl i ndraceum Coregonus artedii Salvelinus namaycush Stizostedion canadense Lota lota Catostomus catostomus

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

i i

copy Minister of Supply and Services Canada 1981

Cat no Fs 97-13293 ISSN 0706-6465

Correct citation for this publication

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWI) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 iv + 20 p

iii

TABLE OF CONTENTS

ABSTRACTRESUME iv

INTRODUCTION bull 1

METHODS 1

RESUL TS 2

ACKNOWLEDGMENTS bull 3

REFERENCES 3

LIST OF TABLES

Table Page

1 137Cs 226Ra and 40K activities in fish samples 4

2 Means and one standard deviation for activities of 137Cs and 226Ra and for total weight and fork length of each fish population 11

3 137Cs activities in muscle bone skin and viscera of three 1ake trout from Lake 223 ELA 12

4 Concentrations of calcium Qotassium copper and zinc ratios of Ca 226Ra and K137Cs and percent abundance of 40K in fi sh samples 13

5 Means and one standard deviations for concentrations of calcium potassium copper and zinc of each fish population 16

6 Activities of 137Cs and 226Ra in surface water samples from Great Slave Lake stations Lake 302S ELA and Lake Winnipeg 17

LIST OF FIGURES

Figure

1 Frequency di stributions of 137Cs within each popul ation sampl ed 18

2 Frequency distributions of 226Ra within each population sampled 20

iv

ABSTRACT

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 i v + 20 p

Activities of 137Cs resulting fran globally distributed atmospheric fallout and natural activities of 226Ra and 40K were determined for nine species of fish frOO1 five lakes in the Northwest Territories Manitoba Saskatchewan and northwestern Ontario Sampl e si zes of approximately 25 fish were obtained for each species and location Selected subsamples were also analyzed for the stable elements Ca Zn Cu and K Surface water samshyples were collected and activities of 137Cs and 226Ra were determined in both dissolved and particulate fractions

Analytical methods are given and chemical results total weight and fork 1ength are tabul ated for each fi she Popul at ion means and frequency distributions of 137Cs and 226Ra indicate activities which are specific to location and species respectively

Key words coreaonus c1u~eaformis Prosopi urn cyl i ndraceum Coregonus arte ii Salve inus namaycush St i zostedion canadense Lota lota Catostomus catostomus - shy

RESUME

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 r adi um-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NW L) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern OntariO) Can Data Rep_ Fish Aquat Sci 293 i v + 20 p

Les auteurs ont determine laction exercee par le 137Cs (provenant de ret~bees atmospheriques reparties globalement) et laction naturelle exshyercee par le 226Ra et le 40K pour neuf especes de poissons de cinq lacs choisis dans les Territoires du Nord-Ouest le Manitoba la Saskatchewan et 1e nord-Ouest de lOntario Il s ont prel eve environ 25 poi ssons de chaque espece dans chacun des lacs Ils ont aussi analyse des sous-echantillons du point de vue de leur teneur en Cat Zn Cu et K Des echantillons deau superficielle furent aussi preleves et lion a determine laction exercee par le 137Cs et le 226Pa tant dans des fractions dissoutes que dans celles de particules

Louvrage contient les methodes analytiques employees et il donne les resultats chimiques le poids total et la longueur totale pour chaque poisshy~~9 Grace aux moyennes (popul at ions) et aux repartit ions (frequence) du

Cs et du 226Ra les auteurs ont pu relever le degre de laction exercee dans chaque 1 ieu et chez chaque espece

Mots-cl es Coregonus cl upeaformis Prosopi urn cyl i ndraceum Coregonus artedii Salvelinus namaycush Stizostedion canadense Lota lota Catostomus catostomus

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

iii

TABLE OF CONTENTS

ABSTRACTRESUME iv

INTRODUCTION bull 1

METHODS 1

RESUL TS 2

ACKNOWLEDGMENTS bull 3

REFERENCES 3

LIST OF TABLES

Table Page

1 137Cs 226Ra and 40K activities in fish samples 4

2 Means and one standard deviation for activities of 137Cs and 226Ra and for total weight and fork length of each fish population 11

3 137Cs activities in muscle bone skin and viscera of three 1ake trout from Lake 223 ELA 12

4 Concentrations of calcium Qotassium copper and zinc ratios of Ca 226Ra and K137Cs and percent abundance of 40K in fi sh samples 13

5 Means and one standard deviations for concentrations of calcium potassium copper and zinc of each fish population 16

6 Activities of 137Cs and 226Ra in surface water samples from Great Slave Lake stations Lake 302S ELA and Lake Winnipeg 17

LIST OF FIGURES

Figure

1 Frequency di stributions of 137Cs within each popul ation sampl ed 18

2 Frequency distributions of 226Ra within each population sampled 20

iv

ABSTRACT

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 i v + 20 p

Activities of 137Cs resulting fran globally distributed atmospheric fallout and natural activities of 226Ra and 40K were determined for nine species of fish frOO1 five lakes in the Northwest Territories Manitoba Saskatchewan and northwestern Ontario Sampl e si zes of approximately 25 fish were obtained for each species and location Selected subsamples were also analyzed for the stable elements Ca Zn Cu and K Surface water samshyples were collected and activities of 137Cs and 226Ra were determined in both dissolved and particulate fractions

Analytical methods are given and chemical results total weight and fork 1ength are tabul ated for each fi she Popul at ion means and frequency distributions of 137Cs and 226Ra indicate activities which are specific to location and species respectively

Key words coreaonus c1u~eaformis Prosopi urn cyl i ndraceum Coregonus arte ii Salve inus namaycush St i zostedion canadense Lota lota Catostomus catostomus - shy

RESUME

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 r adi um-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NW L) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern OntariO) Can Data Rep_ Fish Aquat Sci 293 i v + 20 p

Les auteurs ont determine laction exercee par le 137Cs (provenant de ret~bees atmospheriques reparties globalement) et laction naturelle exshyercee par le 226Ra et le 40K pour neuf especes de poissons de cinq lacs choisis dans les Territoires du Nord-Ouest le Manitoba la Saskatchewan et 1e nord-Ouest de lOntario Il s ont prel eve environ 25 poi ssons de chaque espece dans chacun des lacs Ils ont aussi analyse des sous-echantillons du point de vue de leur teneur en Cat Zn Cu et K Des echantillons deau superficielle furent aussi preleves et lion a determine laction exercee par le 137Cs et le 226Pa tant dans des fractions dissoutes que dans celles de particules

Louvrage contient les methodes analytiques employees et il donne les resultats chimiques le poids total et la longueur totale pour chaque poisshy~~9 Grace aux moyennes (popul at ions) et aux repartit ions (frequence) du

Cs et du 226Ra les auteurs ont pu relever le degre de laction exercee dans chaque 1 ieu et chez chaque espece

Mots-cl es Coregonus cl upeaformis Prosopi urn cyl i ndraceum Coregonus artedii Salvelinus namaycush Stizostedion canadense Lota lota Catostomus catostomus

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

iv

ABSTRACT

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 radium-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NWT) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern Ontario) Can Data Rep Fish Aquat Sci 293 i v + 20 p

Activities of 137Cs resulting fran globally distributed atmospheric fallout and natural activities of 226Ra and 40K were determined for nine species of fish frOO1 five lakes in the Northwest Territories Manitoba Saskatchewan and northwestern Ontario Sampl e si zes of approximately 25 fish were obtained for each species and location Selected subsamples were also analyzed for the stable elements Ca Zn Cu and K Surface water samshyples were collected and activities of 137Cs and 226Ra were determined in both dissolved and particulate fractions

Analytical methods are given and chemical results total weight and fork 1ength are tabul ated for each fi she Popul at ion means and frequency distributions of 137Cs and 226Ra indicate activities which are specific to location and species respectively

Key words coreaonus c1u~eaformis Prosopi urn cyl i ndraceum Coregonus arte ii Salve inus namaycush St i zostedion canadense Lota lota Catostomus catostomus - shy

RESUME

Elliott S E M C Burns-Flett R H Hesslein G J Brunskill and A Lutz 1981 Cesium-137 r adi um-226 potassium-40 and selected stable elements in fish populations from Great Slave Lake (NW L) Louis Lake (Saskatchewan) Lake Winnipeg (Manitoba) and Experimental Lakes Area (Northwestern OntariO) Can Data Rep_ Fish Aquat Sci 293 i v + 20 p

Les auteurs ont determine laction exercee par le 137Cs (provenant de ret~bees atmospheriques reparties globalement) et laction naturelle exshyercee par le 226Ra et le 40K pour neuf especes de poissons de cinq lacs choisis dans les Territoires du Nord-Ouest le Manitoba la Saskatchewan et 1e nord-Ouest de lOntario Il s ont prel eve environ 25 poi ssons de chaque espece dans chacun des lacs Ils ont aussi analyse des sous-echantillons du point de vue de leur teneur en Cat Zn Cu et K Des echantillons deau superficielle furent aussi preleves et lion a determine laction exercee par le 137Cs et le 226Pa tant dans des fractions dissoutes que dans celles de particules

Louvrage contient les methodes analytiques employees et il donne les resultats chimiques le poids total et la longueur totale pour chaque poisshy~~9 Grace aux moyennes (popul at ions) et aux repartit ions (frequence) du

Cs et du 226Ra les auteurs ont pu relever le degre de laction exercee dans chaque 1 ieu et chez chaque espece

Mots-cl es Coregonus cl upeaformis Prosopi urn cyl i ndraceum Coregonus artedii Salvelinus namaycush Stizostedion canadense Lota lota Catostomus catostomus

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

INTRODUCTION

Numerous investigations of 137Cs bioaccumulashytion in fish began in the mid 1960s after major test i ng of thermonucl ear bombs and monitori ng of the resultant atmospheric fallout of radionucshylides Concentration factors (pCig in fish pCig in water) of from 55 (Porcella and Friend 1966) to 23000 (Kolehmainen et al 1966 1968) have been reported for a wide variety of fish species There is still concern about the mechanism of 137Cs acshycumulation in freshwater biota since the isotope is released in the liquid waste from nuclear power station reactors J inks and Wrenn (1976) modelled radiocesium uptake in fish by examining accumulashytion both directly from water through gills or inshygestion and indirectly from contaminated food Kolehmainen et al (1968) postulated four major factors governing levels of 137Cs in fish (1) 137Cs activity in the water (2) K concentration in the water (3) 137Cs activity of food sources and (4) the biological half-time of 137Cs in fish

226Ra is a naturally occurring radionucl ide which is an important contributor to the total radshyiation dose of man As well waste waters from urshyanium mines and mills often discharged into surshyrounding surface waters may contain high activishyties of 226Ra Havl ik (1970) reported an increase in 226Ra at Elliott Lake in an area of uranium ore exploration and mining from lt1 pCiL to 10-222 pCiL

The purpose of this study was to obtain backshyground data on the accumulation of 137Cs and 226Ra in several fish species Lakes chosen for sampling received onl globally distributed atmospheric fallout of 13 Cs and natural inputs of 226Ra They also represented different limnological features The west basin and McLeod and Christie Bays of Great Slave Lake (61-63degN 110-118degW) in the Northshywest Territories were sampled separately as were the north and south basins of Lake Winnipeg (51shy54degN 96-98degW) Basic limnological information on Great Slave Lake and Lake Winnipeg can be found in Rawson (1950) and in Brunskill et al (1980) resshypectively Fish were also obtained from two Preshycambrian Shield Lakes in the Experimental Lakes Area northwestern Ontario (Brunskill et al 1971 and other papers in this vol ume) and fran Loui s Lake on the Saskatchewan-NWI border (61deg07N 104deg49W) The limnology of Louis Lake has not been studied Although it was not possible to obshytain the same species at all stations in total nine species were analyzed lake whitefish (Coreshy901~S clupeaformis) round whitefish ProsClTUm c ndraceum) ci sco (Core onus artedi ake trout Sa velinus namaycus sauger (Stizostedion canadense) burbot (Lota lota) longnose sucker (Catostomus catostomuiJ northern pi ke (E sox 1 ucshy~) and inconnu (Stenodus leucichthys) -- -shy

METHODS

FISH SAMPLES

Lake and round whitefish trout cisco longshynose sucker burbot pi ke and i nconnu from Great Slave Lake NWT were gillnetted during April and September 1978 at three stat ions near Snowdrift in Christie Bay off Fort Resolution in the West

Basin and near Fort Rel iance in McLeod Bay Total weight fork length and sex were detennined in the field The fish were then commercially dressed (head and viscera removed) frozen and shipped by air to the Freshwater Institute

Sauger were taken in a trapnet off Elk Island in the South Basin of Lake Winnipeg in June 1979 and lake whitefish in February from commercial gillnetting operations north of Long Point in the North Basin Whole fish were shipped to Winnipeg where they were coomercially dressed before analyshysis Fork lengths and total weights for saugers were taken on site lake whitefish were measured after defrosting in our laboratory

Lake whitefish and trout from Lakes 302S 226SW and 223 in the Experimental Lakes Area (ELA) northwestern Ontario were gillnetted in the fall of 1979 Lake 302S fish had heads and viscera reshymoved in the field while the others were shipped whole to Winnipeg

In October 1978 after an unexplained fish kill in Louis Lake near the Saskatchewan-NWT boundary dead fish were collected fran along the lake shore frozen and shipped whole to the Instishytute for investigation We incl uded these fish in our survey although they were not sampled in the same manner and could not be gutted due to their partially decayed state

Fish samples were stored at -40degC and batches of samples were defrosted in a microwave oven as required If necessary fork lengths and total weights were measured and heads tails or viscera removed Approximately 300g of the remaining tisshysue was chopped into 3-5 on chunks for wet weighing and then dried for 2 days at 1l0degC to obtain a dry weight Pieces of dried fish were sequentially added to boiling 16M HN03 in a large beaker Trout pi ke i nconnu and burbot samples contai ned more fat and required considerable care and attenshytion to avoid excessive foaming HN03 was replenshyi shed unt il the ent i re sample was di gested and in solution When brown nitrous oxide fumes ceased the sample was allowed to evaporate to dryness The residue in the beaker was ashed in a muffle furnace at 450degC overni ght and then 16M HN03 was added to the sample for another digestion and evashyporation to dryness This latter procedure was reshypeated unt il a white ash of mi nimal vol ume was obshytained The ash was transferred to plastiC petri dishes weighed and then counted with dual 180deg optlOsed NaI detectors to determine the activity of 137Cs A count rate for 40K was obtained at the same time and was recorded for each sample Counting efficiencies for 137Cs and 40K were 195 and 8 respectively Twelve fish samples were spiked with known activities of 134Cs before dryshying and processing and a total yield of 85-95 was obtained for the method

The ash was then dissolved in water or dil ute HC1 and activity of 226Ra was determined by a charcoal extraction modification (G Mathieu L amont-D oherty Geolog ica1 Ob servatory persona1 cOf11l1unication) of the 222Rn emanation method of Broecker (1965) A more detailed TlIthodology is given in the section entitled Water Samples

In addition to the above analyses three lake trout from Lake 223 were dissected into muscle

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

Jone skin and viscera to determine if 13 Cs was concentrated in a particular fraction of the fish Because of small sample sizes trout with higher activities of 137Cs in muscle tissue were chosen Viscera and skin were removed and the remaining flesh microwaved so bones could be separated from the muscle Each portion was acid digested repeatshyedly as described earl ier and counted for 137Cs on a Geli gamma detector A NaI detector was not used because of interference fran other isotopes in the samples which were present due to an experimental radionuclide spike in lake 223

After 222Rn stripping the dissolved samples were analysed for stable elements All samples and blanks were brought up to a 200 ml volume Ca Zn and Cu were ana lysed by atomi c absorpt i on spectroshymetry An aliquot of the sample was diluted with an addition of 1 anthanum to suppress interference in the Ca analysis Zn and Cu measurements were done with simultaneous background correction Cu was extracted as the diethyl dithiocarbamate comshyplex into n-butyl acetate K was determined by atomic emission spectrometry and Ca was added to the standards at a level equivalent to that of the samples Repl icate analyses were done for Ca and K and standard deviations of 6 and 25 were obshytained

WATER SAMPLES

Surface water sampl es were al so taken from the three stations in Great Slave lake in September 1979 from lake 302S in March 1980 and from the North Basin of lake Winnipeg near long Point in June 1980 Three acid-washed 55 l plastic barrels were rinsed with lake water filled with surface water at each station and shipped to the Freshshywater Institute Samples were centrifuged (continshyuous flow 50 mlmin at 16500 rpm) to separate the particul ate from the dissolved phase The water was then acidified to ph 1 with reagent HC1 and flushed with He The barrels were sealed and the water allowed to stand for 1-2 weeks to allow growth of 222Rn from 226Ra 222Rn was then stripshyped from the 55 l by He bubbl ing trapped on a charcoal col umn cool ed in 1 i quid N2 and transfershyred to a counting cell Alpha disintegrations were counted on a specially designed scintillation counshyter Water samples spiked with known amounts of 226Ra were used to cal ibrate the method Barrel extract i on system and counting cell bl anks were ~~~~inelY done The barrel blank value was 91 pCi

The centrifuged water samples were then spikshyed with 134Cs and stable Cs Total Cs was collectshyed by cation exchange with AMP (ammonium molydoshyphos phate B i o-Rad AMP -1) powder added directly to the 160 l sample Samples were allowed to stand overnight after which the cl ear supernatant was siphoned off and the AMP crystals concentrated inshyto a small volume for drying and packing into plasshytic pet ri dishes The AMP powder samples were counted on aGel i gamma detector for approximately one day Yield for 134Cs tracer was 80-90 Counting efficiencies were determined from known activities of 134Cs added to AMP of the same volume and geometry as the samples The suspended particushy1ate matter collected from centrifuging was pl aced in plastic petri dishes and counted for 137Cs with a Geli detector

STATI STiCS

Means and standard deviations of total weights fork lengths and activities of 137Cs and 226Ra and concentrations of stable elements were calculated for each population (one species from a single location) on both the raw data and logshytransfonned val ues Both distribut ions were checkshyed for normality with the Shapiro-Wilks test (Shapiro and Wilk 1965) recoomended for sample sizes of less than 50 In populations where the fish had been sexed an F-test for homogeneity of variance and a t-test for equal ity of means were used to detennine if significant differences ( ct = 005) ex i sted between I11d 1es and females in si ze or activities of 137Cs and 226Ra

RESULTS

Activities of 137Cs 40K and 226Ra for each fish sample analyzed are given in Table 1 Where avail able fork lengths and total weights are al so shown along with the sample weights at different stages of preparation No significant differences were found in mean tota1 wei ght s fork 1engths or activities of 137Cs between males and females in any population Therefore sex of the fish was igshynored for the popul at ion means given in the summary Table 2

With few exceptions the variations in fork lengths 137Cs and 226Ra within each population were equally well explained by either the normal or log-nonnal distribution Total weights were genershyally log-normal Neither distribution described the variance in 137Cs or 226Ra in populations where a high proportion of the fish had activities near our lower limits of detection (cisco from Fort Resol ut i on trout from Snowdrift) The stat j st ics given in Table 2 are for log-transfonned data so that means which vary by orders of magnitude can be compared with relatively homogeneous variances

Frequency distributions for 137Cs and 226Ra in each fish population are shown in Figs 1 and 2 The total range in mean 137Cs activityweight for all populations was three orders of maw1tude Within a single species the activity of 137Cs was unique to the station sampled For example Fig 1 shows that there is practically no overlap in the distributions for whitefish from louis lake ElA Snowdrift and Fort Resolution There was a smaller range of 226Ra activities in these populations and in contrast to 137Cs appears to be controlled more by species than location (Fig 2)

It was considered that variations in mean 137Cs activity between speCies might be due to difshyfering proportions of skin bone and muscle in the samples Table 3 shows the results of dissecting three trout from lake 223 and analyzing these porshytions separately Muscle was the greatest contrishybutor to overall 137Cs activity (65-80) primarily due to its large contribution to total wet weight As a result the total sample activity (combined in Table 3) was almost identical to muscle alone

Stab1 e el ement chemi stry was determi ned for some fish samples from each location Concentrashytions of Ca K Cu and Zn are given in Table 4 and

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

3

means and standard devi at ions for eiJch popul at i on are shown in Table 5 Ratios of K 137Cs are al so given because Jinks and Wrenn (1976) hypothes1zedthat 137Cs uptake in fi sh is inversely rel ated to the concentration of K in water Ratios in Table 4 are not constant but vary directly with the 1argerange in 137Cs activities Ca 226Ra are presented because the two elements are chemically similar and therefore interchangeable for one another durshying assimilation

Percent abundances (100 x 40K39K) of 40K ih the fish samples (Table 4) were relathely conshystant but consistently higher than the reportednatural global value of 0OI18~ (Friedlander et a1 1964)

Most of the 137cs in Great Sl ave Lake ELA Lake 302S and the North Basin of Lake Winnipeg surface waters was in the di ssolved phase (supershynatant after centrifugation) and less than 201 of the total was on the particular matter (Table 6) The 226Ra values in Table 6 are also for the disshysolved fraction No detectable amount was found on the particUlate material

ACKNOWLEDGMENTS

The Atomic Energy Board and Atomic Energy CouNcl1 Canada Ltd provided partial funding of this work Fish samples were collected by R Moshenko and K Robertson (Great Slave Lake) K Mills (ELA) F Lavallee and W Lysack (Lake Winnishypeg)

REFERENCES

BRUNSKILL G J S E M ELLIOTT and P CAfoIlshyBELL 1980 Morphometry hydrology and watershed data pertinent to the limnology of Lake Winnipeg Can Fish Mar Servo MS Rep 1556 v + 32 p

BRUNSKILL G J and D W SCHINDLER 1971 Geoshygraphy and bat hymet ry of selected 1ake basshyins Experimental Lakes Area northwestern Ontario J Fish Res Board Can 28(2) 139-155

BROECKER W S 1965 An application of natural radon to problems in ocean circulation p116-145 In T Ichiye (ed) Symposium on diffusion iniOCeans and freshwaters LamontshyDoherty Geological Observatory Palisades N Y

FRIEDLANDER G J W KENNEDY and J M MILLER 1964 Nuclear and radiochemistry John W11 ey and Sons 1nc N Y bull

HAVLIK B 1970 Radium-226 content of water and pl ankton fran the Chalk River area Atanic Energy AECL-3687

of [29] Canada Ltd

p Chalk River Onto

JINKSS M and M E WRENN 1976 Radiocesium transport in the Hudson River estuary p207shy227 In M W Miller and J N Stannard (ed) ltnvironmental toxicity of aquatic radionuclides Ann Arbor Science Ann Arbor Mich

KOLEHHAINEN S1 E HASANEN and J K MIETTINEN 1966 13 Cs levels in fish of different limshynological types of lakes in Finland during 1963 Health PhySics 12 917-922

KOLEHMAINEN Si E HASANEN and J K MIETTINEN 1968 J7cs in the plants ~lankton and fish of the Finnish lakes and factors affectshying its accumulatiON p 407-415 In Proc of the First tnterr1at Congress of Radiation Protection PergamoN Press oxford UK

PoRCELLA D B and A O FRIEND 1966 Field studies of specific radionuclides iN freshshywater J Water Pollut Control Fed 38(1) 102-110

RAWSON D S 1950 The physical 11tnnology of Great sl ave Lake J Fi sh Res Board Can 8(1) 3-66

SHAPtRO S 5 and M B WILK 1965 An analysiS of variaNce test for normality (complete sampl es) Bianetri ka 52 591-611

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

---------------------------------------------------------------------------------------------------------

4

Table 1 137CS oK and 225Ra activities in fish samples from Great Slave Lake LOUis Lake Lake Winnipeg and ELA SO = Snowdrift (fall) Christie Bay Great Slave Lake RF =Ft Resolution West BaSin Great Slave Lake SRF c Ft Reliance McLeod Bay Great Slave Lake LL = Louis Lake SN = Snowdrift (spring under ice) Christie Bay ELA 3 c

poundLA Lake 3025 ELA 2 = ELA Lake 226 SW LWP = Lake Wi nni peg

TOTAL SAMPLE SAMPLE 137 226 40SAMPLE SEX fOlgtllt FISH WfT Dry ASH COUNT cs

bull Ra K LENGTH WT WT WT WT TIME pCig (WET WT) fCig (WFT W) pCig (WET w)

(Iml) (g) (g) (g) (g) (min) 2SO 2sb 2SD

LAIltE WHITEFISH ---------shySO 272 F 292 350 28764 6628 155667 0055 SO 170 F 318 350 22546 4g31 5121 50000 0068 SO 186 F 402 900 36386 8603 7696 000 0035 SO 207 F 435 1100 300 28 7505 6920 341 67 0067 SO 102 F 395 900 33268 9015 5906 100000 0059 0006 363 017 SO 209 F 439 1150 31915 8824 4860 41833 0060 0010 1 34 0 08 333 019 SO 181 F 360 650 29361 10150 5752 100667 0067 0007 415 019 SO 84 F 291 300 18404 4567 3422 931 67 0068 0011 446 023 SO 49 F 372 700 28376 6769 5474 97333 0054 0007 l 75 018 SO 5 F 447 1400 30996 8660 5527 241167 0079 0005 1 ~4 009 383 017 SO 31 F 434 1250 26717 8223 4963 155667 0031 1 25 007 363 SO 101 F 366 650 33065 9320 6232 -348466 0044 442 022 SO 71 F 376 650 281 99 6901 5393 113050 0051 0007 409 019 SO 326 221 100 6988 1624 1307 42667 0057 0041 0352 0278 542 058 SO 180 295 300 16496 3925 3220 74000 0037 0013 496 027 SO 188 M 447 1350 25960 72 01 4485 33335 0045 0012 0850 0170 SO 105 M 262 250 13184 31 62 2682 83338 0023 SO 8 M 425 1150 314 28 8626 4155 101667 0050 SO 295 M 270 200 16827 4085 4297 111833 0056 SO 94 M 346 500 29428 7397 5234 138833 0031 SO 191 M 334 500 25133 6448 5156 43833 0050 0012 117 010 457 o 25 SO 301 M 277 250 15233 3856 3349 124333 0074 0012 494 o 25 SO 43 ~I 427 1150 33779 9864 6441 82500 0035 0006 364 017 SO 29 M 328 450 26479 6658 5097 105333 0055 0077 1 50 015 410 019 SO 6 M 452 1400 31536 91 33 5 712 59000 0035 0008 369 019 SO 173 M 344 500 24938 71 08 5055 82667 0053 0009 399 020 SO 508 26180 4848 93500 0052 SO 187 F 547 2500 27628 7829 5383 1601 35 0054 0004 SO 55 F 391 800 32600 9231 5969 112501 0055 0004 337 007 SI 302 F 246 200 12770 2955 2741 146571 0033 0008 339 013 SO 78 ~1 343 500 30775 7744 6650 145945 0045 0003 346 006

RF 91 297 400 244 19 71 73 7792 141583 0012 0006 229 006 414 019 r-r 41 314 450 16176 4083 4642 153767 0022 0002 406 021 rF 77 312 450 24402 5579 9542 699500 0022 0003 434 011 FF 87 287 400 26415 6604 9489 96833 0012 0007 352 018 FF 64 322 550 23791 6046 6061 98467 0009 0008 1 41 011 410 020 FF 32 415 1150 34407 9693 5837 383500 0016 0003 362 015 RF 63 312 400 25619 5993 8838 -287200 0016 0008 402 024 PF 62 371 700 27756 6811 6148 -318583 0016 0007 442 024 FF 47 408 950 40706 10356 10374 -303084 0016 428 o 21 RF 34 392 1000 27878 8288 5174 111833 0009 368 018 RF 35 402 1100 32362 10083 5792 89500 0018 0006 349 017 FF 44 352 700 24931 7409 5423 97833 0007 0008 141 011 362 018 RF 40 373 800 246 39 9019 411 0 85333 0008 0008 342 018 FF 52 384 750 281 66 6742 7150 80000 0011 0008 413 020 IgtF PF

51 81

456 323

1900 450

28881 16361

8889 4015

5011 2903

65333 104167

0024 0 022

0008 o all

0900 0854

O 095 0125

346 374

018 022

RF 33 392 950 27848 7760 5447 98000 0018 0007 379 018 FF 50 372 850 32597 8533 7904 392667 0017 O 003 353 015 PF 55 378 800 311 00 8989 5725 288833 0015 0004 333 014 FF 96 352 600 26098 6661 8555 142167 0015 0006 406 019 RF 65 278 350 24162 5520 7792 114750 0011 0007 364 018 FF 53 380 800 30194 7753 7172 84667 0011 0007 396 019 RF 34 392 1000 27878 8288 5174 0019 0006 RF 58 362 750 23773 5760 4718 44500 0016 0012 385 023 RF 43 370 750 31411 8726 6017 86833 0024 0006 354 017 RF 39 430 1200 29518 7951 6385 84667 0020 0007 327 017 RF 36 340 650 24498 8018 5645 84500 0018 0008 379 019 RF 70 364 700 27374 7014 6195 87833 0013 0007 1 05 009 387 019 RF 37 384 800 29498 7667 5616 83833 0007 0007 0696 0062 367 018 PF 67 322 550 29752 6093 5437 -270429 0000 000 5

SFF 302 F 405 1000 27074 7367 4626 37167 0221 0015 438 024

LLt 3 250 23720 5687 7634 4833 328 015 209 011 381 054 LL 300 220 13090 3352 4113 181 67 1 49 007 224 017 400 048 Ll 6 250 17942 4554 5547 104000 228 010 282 018 452 023

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

--- ---------- --- --- --- -------- --------- - - -- --------- ---- ---- --------- ----- -------- -- -- -- ------------------ ----

Table 1- cantd

TOTAL SAMPLE SA~IPLE [py 137CS 226 40

S~PLf ~ fX FCFK FISH I-ltf1 Af14 celm Ra K LEICTI l iT 1 vi] bull ~~T bull lIn rC ilg (vE] liT ) tei ( [1 L1 ) rC i c (ITT -iT) (m) (g) (9 ) (lt]) (9) (Il i ~) 2SC 2SD 2r

LL 31U 285 26587 7327 8712 101333 1 35 006 1 95 008 410 020 LL 7 230 166 42 4290 4 944 62833 2 42 010 254 011 42 0 026 LL 7 260 20778 50 72 0945 13500 1 8 3 008 1 69 012 430 039 LL 23 140 2496 690 0754 81367 1 37 010 216 050 4 7 ~ 1 05 LL 5 270 18963 4911 5702 115 00 3 09 014 1 59 017 473 OH LL 9 300 23906 5896 7438 81 67 207 010 264 007 373 042 LL 18 240 19274 46 35 5 753 9500 204 010 234 010 394 o 47 LL 22 270 213 61 51 69 6235 16183 278 210 014 394 035 LL 10 290 21883 53 51 7011 6500 255 012 177 011 4 45 052 LL 13 260 17181 4082 5 263 17333 312 014 1 55 017 437 o4 0 LL 21 290 16017 3847 4387 10667 281 013 213 011 416 052 LL 1 2U5 111 55 2645 3108 20000 1 90 010 261 019 406 052 LL 19 25U 177 69 4440 5223 146667 1 33 006 254 O 12 4 37 o 22 LL 16 270 177 34 44 03 5034 9333 1 73 009 1 4 3 012 421 051 LL 11 250 16608 3890 5127 11667 1 83 009 1 6 3 009 447 019 LL 2 250 17429 44 16 5 464 10666 2 17 010 242 011 4 30 o 41 LL 4 250 21346 5395 6749 7917 364 014 295 008 431 o 4pound LL 14 235 19160 4813 5926 1667 250 012 20e 011 4 5 7 o 53 11 15 200 13669 3372 5 U4 9 121667 1 93 009 258 012 4 90 o 26 LL 301 20313 4642 6 402 13167 281 012 4 03 039 LL 9 13652 3449 4643 49250 1 52 007 358 017 3 G 7 o 30

ELid 1 160 258 24460 6307 5941 27443 1 20 002 I 6 7 010 360 U13 ~L~ 3 2 200 427 4U580 9717 12 533 -23468 1 58 002 330 024 ELJI3 3 185 358 23709 7762 9992 10226 204 003 427 014 4 12 023 tLA 3 4 170 237 181 59 4883 4366 113 9) 1 24 00) 234 012 )65 02pound HII3 5 l GO 213 2U)10 5 ~ 98 5566 lOS )6 1 41 ao) 249 012 ) 57 026 EL~ 3 6 17U )26 261 54 5962 555G 16441 1 52 002 I 76 008 ) SA 016 1)3 ) 70 5 360 )41 ) 6 8375 0917 -245i4 1 82 002 2tl7 D29 tLA 3 8 185 302 28643 6645 8 )76 -19654 242 o 03 ILA 3 9 100 )40 28015 7390 7408 8746 184 00) 287 008 6 (1 036 tLA 3 10 150 150 14386 3502 3377 13465 0681 00)0 240 017 321 032 lLll 3 11 180 ))0 31084 8061 7987 7310 118 00) 36 6 020 CL3 12 190 )86 36470 8665 9772 -24735 222 002 324 027 ELA 3 13 105 361 34572 9107 9893 -26056 202 U02 089 007 339 020 ELA 3 14 14s 165 15561 3996 )727 35221 107 002 212 010 3 18 01lt ELA 3 15 135 118 11169 2577 2493 12396 0693 0038 251 0 15 275 0 43 EU_ 2 16 )91 318)4 890) 7657 24000 0521 0069 [LA 2 17 414 38051 9757 9256 24000 1 07 013 EL 2 18 375 24503 6477 6520 24000 1 69 018 ELA 2 19 413 37980 9514 9356 -4800U 0692 0146 ELJl2 20 405 30001 9836 9206 24000 132 013 UA 2 21 420 39762 10355 10047 -40000 0985 0134 I LA 2 22 400 48395 124 )4 11731 -48000 0843 0122 EL 2 2) 315 22741 5615 5333 24000 1 72 019 ELA 2 24 335 30311 7296 6 743 24000 0957 0117 [Li2 25 320 27485 6080 6401 -48000 238 029 ELJl2 26 290 204 72 4857 4646 -48000 0818 02CC [[2 27 250 12416 2936 311 5 24000 1 )6 023 ELA 2 2amp 265 151S5 3496 3688 24000 1 50 016 ELA 2 29 255 12585 2977 3077 24000 212 021 [LA 2 30 310 26066 0847 6633 24000 1 57 020 ELJI 2 31 280 14443 3555 3649 24000 222 022 rtr 2 32 230 9253 2222 2230 24000 1 53 023 ELP 2 3) 220 6382 1~ 5 S 1 760 24000 116 020 ELP 2 )4 230 94)9 20)9 2197 24000 0831 0203 lLA2 35 225 9521 22 92 2067 24000 10E 019 EU2 )6 23U 9768 22 e 3 224U 2400C 1 05 019 Eu2 37 22S 91 09 2l 74 1984 2 4000 1 44 022

LlvP 150 360 710 37455 12085 9440 131371 0027 0003 269 005

LWP 151 360 710 32998 92)7 9140 -239946 0032 0007 311 012

LViP 152 390 890 288 61 7499 7850 -188083 0024 0018 LvP 153 390 848 36477 91 49 10540 -200000 0032 0015 LhP 154 )70 788 35818 1045) 8820 100000 0020 0008 LVP 155 )80 870 36082 9925 6010 -289566 0021 0006 312 009

LWF 156 )70 765 30170 71 86 7750 115645 0019 0004 296 007

LIP 157 350 805 29649 87)9 8020 -333298 0014 0006 296 011

LP 1511 400 750 310)7 7951 4770 -243950 0021 0011 294 011

LWF 159 )95 808 31658 7237 8500 290948 0083 0002 31) 004

LWP 160 )70 6)0 2744) 7672 7210 -236059 0020 0008 3 18 014

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

---- ---------- ----------- -- ---- ---- ------- ---- --- ------ ----- -- -- ---- ---------------- ---- -- ---- ---- -- ---------- ----

Ta b I e con t d

TOTAL SAMPLE SAMPLE 40SMPI [ Sf X FOPK FI SH IoET DRY I~J CCUN1 1]7CS 226

Ra K L[NG71 1-11 bull ~~r middotT liT HMr rCig (I fT T) fCiltJ (If 1 1 ) rC io (Hj If)

(rromiddot) (g) (g) (0 ) (g) (in) 2SC 25D 2Sr

7 f LI 1

Or 222 f 730 5150 3299] 10175 4 13] 25000 0251 0016 ] 9] 0 2] sr 3] 5 F 477 1400 3199] 95]7 4 737 26] 38 o 13~ u013 0260 004] ] bull L S 0] sr 10 F 615 ]200 32951 10010 ]5]8 151 67 0109 0018 ]C5 o 24 S [ 213 F 695 5100 34359 10564 ]854 175 00 0221 0017 0204 0038 ] 41 o 2~ SC n4 f 754 6950 359 ]] 118 27 ] 8 ]5 200 00 0176 0 015 ] 41 O 22 SC 109 F 77] 6850 33 708 1088] ]20] 27667 0168 00 1 ) 3 Z5 020 sr lOu F 666 3650 ]59 05 10084 5031 250 00 0186 SC 127 F 669 ]450 ]1088 9347 2116 24667 0095 ~L 199 F 585 2950 29627 12]04 ] 54 8 140UO 0 206 O C 2(J ]20 028 [C 121 f 697 4650 4 a 2 22 12125 416 ] 14517 O 174 0 0 15 ] ] 2 02] sr 2 98 F 41] 750 361]2 88] 0 5021 3~667 U075 O OC 9 0016 00 49 3(2 020 SC 79 F ] 52 500 24]2 2 520Y ] 5] 8 104167 0141 O C10 0049 0057 4 34 021 SC 114 F 780 5550 31006 9468 ]464 198] ] 0210 0017 002 6 00]5 ]4 C 024 SC 122 F 844 8 ]00 ]6426 1141 8 42 98 32] 3] C 245 O 0 14 ]53 020 SC l ZG F b17 ]]00 ]] 1 90 10 ] 16 4 ]12 11]167 0177 O 00 ~ ] C 5 a lfi SD ]] 4 F 596 ]250 ]7]2] 11881 522] 17667 0177 0C15 ]84 024 Er 1 97 F 478 1150 ]1]41 8224 4 583 35500 014 ] 0012 ]90 02 2 S[ ]]5 F 477 1400 ]199] 95]7 4737 263]8 0134 SC 11 2 F 769 5900 25]48 75 86 2]]6 21667 015] 0016 -0 173 0060 255 024 sr 10 0 F 454 1150 ]2872 9057 49]] 18]]] 0145 0 0 15 ]6 S 026 ~c 201 F 590 24 00 29504 8674 ] 91 8 2]8 6] 0211 0017 391 025 SC ]]3 f 440 1000 ]4]73 89 74 47 35 19167 0112 0014 ]67 025 sr H7 F 792 6200 34175 11001 ]821 21167 0 2]0 00 16 009] 0064 ] 08 0 21 sr 124 f 706 4300 26705 9732 2112 21000 0152 0017 - 0 0 31 005 2 232 o ] ~ c 260 399 700 2 7447 61 04 4250 1 8667 0171 sr 89 ~j 465 1150 31341 8383 2933 112167 0052 S [ 205 ~ 451 1050 29 1 34 6490 3910 196 C7 0170 0017 362 020 Sl 1 93 I~ 435 1 0 50 246eJ 7118 3518 22 167 0159 0C18 4 0 1 0 28 ~[ 1 2 5 r 620 2900 39245 1 23 14 4 27 1 21500 0 154 0C13 346 021 SI 97 ~ 496 1600 376 56 99 n 5263 24667 0122 OCI Z 0082 0040 4 1 2 023 [ 115 f 6 ]11 3700 29276 6753 3 2 65 20 333 0 153 OOH -OO I C 0256 367 026 SC 143 572 2200 ]0000 12850 3962 18 335 0 1 71 0017 ]98 0~7 ~P F 75 F 901 10100 ]4081 11376 3181 158 ] 3 0239 0018 2 6~ 023 ~H 36 F 4 eo 1200 19854 5052 3013 80 00 0953 005 7 4 34 050 Sf-E- 65 f 735 5500 ] 5942 114 39 4283 213 50 O 303 O OlE 3 50 022 sr r- 47 f 571 24 00 25535 67 4 3 3 2 96 161 68 0733 0 038 O C71 0106 410 0 31 ~ F 1 37 F 656 4250 ] 4 4 56 116 83 4 06 4 175 00 0575 0029 -0147 0286 ]26 0 23 EH 40 f 360 GOO 27916 7008 41 09 13 500 1 27 006 - 01 44 0037 436 032 S I I 73 F 762 4700 24050 8039 2511 16333 0243 O 03 325 0 30 SF F 28 F 710 4 UO 0 ]11 99 102 14 3151 20 667 0187 OOH 0039 0044 296 022 ~ Ff 100 F 677 8700 ]6491 9020 4 79 1 78 ]] 082 8 O 043 ]61 031 FF 76 l 8g 8700 42064 14 324 4632 130333 0175 0008 297 O 13 ~ F F 78 F 8 11 8100 37262 12224 3791 12167 OOIG 3010217 O 25 ~ tt- 1 1 f 490 l UO O 160 39 4085 2 58 a 10]33 1 35 007 477 O 54 ~Ff 92 F 546 2300 1 80 53 4394 2846 2266 7 a 479 O (31 4 G3 033 f )r 74 f 835 9000 2210 1 10511 4084 9000 1 51 007 637 050 SFf 25 F 585 2800 24284 8242 3092 145 00 076 1 0040 0109 0142 328 o 3 1 Sf-(- G f 560 noo W538 57 02 2365 19333 O J 70 0027 3 44 0 32 E FF 2 f 462 1000 20 136 49 70 3 015 13333 119 006 0C3 00 475 0 41 ~If ~ 4 f 528 1650 20 5 21 5850 2935 8 1 67 1 0 1 o o e 419 048 fTf 55 rj 668 3 500 329 2 1 90 30 3634 1amp1 6 7 037 0(J~3 3 4f 025 ~ r F 93 I 536 2000 22570 6044 3620 168 33 j 2S 0C6 0031 0073 4 31 0 34

~S f F JO 460 1 200 19420 4725 2B73 1 5833 O 7~ 1 V0 44 42B C 3 P F 91 r- 566 2100 15553 39 97 2372 1 73 33 1 07 006 3~3 C 41 SFf SS I 493 1400 16]06 5007 2957 1300G 2 1 J 010 -0 110 G 065 4 bull 2 ~ 043 SFf ~9 I 51 ~ 1 ]Oll 15966 4 3 65 2416 1433] 0767 0 041 427 OH SFf ~15 5 28 2 00 0 2lt490 673b 3288 168]3 0 545 0CJ3 4 L3 P3fFf 72 tmiddot 900 II UOI) J 9131 10686 4 572 126 E 7 O 342 C021 3E C 20 [ rr 96 I 717 4 9 00 277e3 8617 4 419 16133 (j S 7H (I (4 ( G 1 7 n 1 03 ) C~ r ( en 8 1 I 5tir 290(1 1111 8 j 37 1 0 192s gt1] J3 G 774 0(4 4 1 ( 4 ~ [ l ~ ~~ L 5Hu L sn(1 20] 1 5 4717 3 217 ~) l6 21 lb ~ O fl IJ bull t ~ n l 7

61 F 2 ( 50 191 6 7 4584 bull lt-l U C66 l 1 CCmiddot q i f~ ( I ~ ()ll 2~-~ 4 ~ 9 77 bull ) 6) 11 bull C( ( l

1 S 360 uo Yfl JL 7middot J lt middot r ~ J 35 )0

-f- 5l Z7 ] ( 1403 8 middot 9() lO1bc7 i1L

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

-- -- - ------- - -- - ------ ------ - ---rU l ltl(1Tabl

shy ~

rOTfL SriI l l MiPLi U7 226 40SN r I F J- ~u FI SH J J r r y I ( C( U~ 1 (S Ra K

GU CTI i [ 1 1 1UT f ( i I ~ (I I i 1) tCio ( l[ tmiddoti J rL i~ nt 1 1)

(rnljl ) (C)) (ltJ) (g) (g) (rin) 2L 2 SD tSl ---- -- -------- -- --- -- --- ------- -- -- -- --- -- - -- -- --- -- --- --- - --- - - -- -- -- -- -- -- -- - ---- - - ---- -- -- -- --- ---- -- -- --- --- ---- -_ SN b9 I ~97 24G0 2 iJ 1 44 I~ P bull tI 1 j95 amp 17000 0160 SN GU j Si S L2 ~(J L ~~ 63 8 1 96 710 29 177 O Jl 7 srmiddot 52 ~ 63 345u 2 500 6 7746 268 0 16617 0247 Sll Sl (1 505 160U 25~~4 i 57 3 395 39333 0 120

CHCO

5C 35 2 25U ]3214 33 28 ) 00 1 1095GO () 12S n 015 1 07 o ] gt 507 () bull 2n 51 154 r- J 54 55u 2343U 9i 82 4 S~2 1220 3 3 0070 O COO 1 36 0C7 352 019 SC 50 f 261 20[1 32 143 2~85 3145 91350 0129 OO OS 226 012 1 55 C10 51 304 f 260 30U 168 01 48 90 3375 128500 U067 4 II 02J 51) 77 f 295 300 15243 Jb65 3475 17491 012 o 01B 1 70 U10 39~ 008 SC 343 l ]10 450 23205 6783 5038 122400 010e 0010 313 ~05

SI 253 F 257 200 116S3 5U39 3312 844 8 0 0 0 69 001 Z 357 009 so 2S4 F 266 200 14124 3393 3193 1387 23 0104 O GG7 1 03 059 370 007 SC 59 F 367 200 141 22 3564 29Bl 43040 0042 0013 372 OJ 3 5[ 252 F 271 250 1503C 3756 4 lS 3 146301 0076 O C07 256 012 36~ 006 SO 324 F 259 150 10162 2609 2391 5714 85 0054 OOOf 0717 0136 210 003 SO 249 F 302 250 14040 3259 2594 142465 0058 0007 0669 0OS3 373 007 51) 25 ~i 260 200 24 S 18 S752 6247 122833 0059 0007 146 014 4 60 021 SO 51 ~ 206 lUO 7113 0026 226 012 51 254 M 268 200 15503 4359 3836 104167 0095 0012 219 015 4 ~1 023 51 6S ~ 264 200 1103S 2548 2321 40333 0025 O all 1 65 016 SI 279 ~ 272 250 16514 4372 3649 116333 0U75 o bull 011 1 4 2 012 424 022 SO 309 ~1 295 300 18544 4665 4474 97545 0074 O GO 7 32S 007 SI) 24S ~ 310 350 20211 5244 4125 97465 0101 0006 0826 0064 3S2 007 SD 62 I 30S 350 20027 5543 3 6S 2 90036 0125 0007 312 006 SC 85 tmiddot] 292 300 14336 3893 2659 94450 0112 0OG9 0477 0091 365 008 SO 293 t 275 200 14458 3567 4042 120901 OOSS 0008 1 65 011 369 007 SO 294 fl 273 200 14416 3S35 45S0 37153 0049 0014 329 016 355 013 SO 297 M 237 150 10748 27 16 29S4 44360 0066 0016 111 018 362 013 51 310 ~ 261 200 10231 2377 2549 13S008 0085 0011 3S5 009 SI 306 M 313 350 22948 6420 5075 107041 0135 0005 107 009 365 006 SO 266 11 328 450 26717 7200 6317 165038 0083 0004 0706 0127 276 004 SD 321 ~1 270 200 13510 35 S6 2737 156038 0101 0007 115 098 370 007 SD 36 M 244 150 9441 2084 2659 143381 0120 0010 111 018 322 006 SD 303 F 328 400 23015 61 G2 5877 117661 0153 0005 177 OSf 411 006 SO 251 f 275 250 8817 21 41 2023 96 S 01 0075 0013 1 06 029 315 010 so 2S3 fl 3S9 350 21538 5947 5841 146170 0079 0005 290 012 363 005 SO 322 ~J 273 200 12771 3124 3229 14642S 0525 0010 1 56 025 375 007 SD 15S f 350 400 22720 5982 6063 144530 0046 0005 0979 006ltgt 342 005

PF 103 294 750 251 78 6505 4909 122626 0004 0004 360 OOS H 106 340 550 2S394 6874 5074 99175 0006 0004 376 006 RF 117 421 1000 35368 9652 63SS 165435 OOOS 0003 332 004 PF 112 374 800 25723 6453 5215 9955S 0004 0005 171 015 326 006 FF 122 374 750 23660 6489 4205 99661 0022 0005 328 006 Ff l1S 383 800 25077 6420 4331 258935 OOOS 0003 0938 0049 315 003 rp 120 354 600 22611 5866 4246 171405 0006 0004 322 004 FF 101 405 900 29202 6991 6431 15S998 0015 0003 297 004 Ff 121 373 SOO 2G635 7193 4512 158381 0014 0004 3G9 004 ~F 114 370 650 24990 6S64 4180 96890 0004 0005 344 006 RF 119 398 950 29714 7910 4897 6 2S 4 0 0013 O OU 5 2 S6 Ooc ff 113 382 600 26647 5S 17 5291 140690 0007 0004 309 005 Ff 105 355 550 25073 65 OS 6521 14 21 36 0005 0OU4 252 004 IF 107 31S 400 22360 5790 4675 99155 0000 0005 0706 0109 339 010 rr 123 385 650 215 02 5241 4337 99216 0000 0005 322 010 FF 104 406 600 19733 3950 6 127 14427S 0000 O OU 5 177 UOC 307 005 FF 109 245 250 16533 4600 4460 143531 0000 O 00 6 405 006 H 115 323 450 13404 33 09 371S 12S043 0000 0OC7 350 013 If 111 404 850 308 14 71 61 5943 S5323 0000 0OG4 639 OOS ff 102 388 SOO 23094 6046 4672 130626 0000 O OG 4 1 20 007 FF 108 274 350 12229 2896 3 OS 3 13S320 O GOO OOGS 316 007 FF 116 357 600 23632 5691 3551 3S0S56 0025 000 3 324 003 FF 110 450 1350 36772 11017 3240 142951 0011 000 3 1 46 003

SF 123 F 330 400 20 676 5012 3932 100036 0523 0007 364 OOG SFF 116 f 303 250 14256 3213 2544 18276 0302 0026 0630 O as 2 503 024 SFf US F 300 300 14279 34 94 3246 99721 0489 o all 2GO 013 395 000 SPF 119 F 298 250 158 14 3940 2948 95070 0602 0010 4 34 009

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

---- ----- -- ---- ------------ --- --- -------- - --- -------------- -------------- -- -------------- ----------------

8 Tabl e 1 cont d

TOTAL SAMPLE SAMPLE 137 226 40StjmiddotlLE ~n FCR~ FISH ~E Dry ASI eCUNT es Ra K

LENG1II liT 1 bull ImiddotT ~JT 1 WE rC ilg (IYET IT) fCil9 (IE1 IYT) rCiq (hET 11) (row) (g) (g) (g) (9) ( l1in) 25D 2SO 2middotsr

SFF SFf

136 122

F F

275 350

200 sou

12503 26764

31 4 3 6727

2538 5519

3U555 84480

0450 0791

0022 0006

0591 0114 413lt) 368

018 006

5FL~ 124 f 325 350 20799 5213 4860 20833 0443 0015 222 008 3 46 016 SH 117 F 302 300 15458 3918 2912 105600 0371 0009 395 OOE SiF 1 us f 320 400 224 36 6097 4297 15705 0533 0016 1 03 008 358 016 Sl-F 106 F 357 550 27544 6480 5092 461 53 o 55 4 0007 396 009 SFI 114 f 460 650 21499 5938 4832 95791 1 03 001 0346 0070 4 29 007 SPF 110 F 325 350 14 359 34 40 2988 93995 0685 0012 417 009 S FF 108 F 346 sou 18472 46 88 3596 10115 1 02 004 1 47 008 389 024 SH 112 f 330 35U 18519 4228 3899 134 55 0660 0025 1 3 5 O 15 3b 02U SH U3 F 315 300 19578 4938 3416 121 10 059gt O a 24 4 04 a 20 S~F 138 F 306 35U 18514 4465 4265 9818 0606 0028 331 022 SFF 126 F 320 300 15072 355G 2899 12520 0552 0029 1 43 012 4 G4 o 24 Sff 109 F 276 200 10982 2525 1 793 255G8 o 363 C024 0669 O12U 367 018 srF 115 F 325 350 14752 3603 2734 9906 0294 0031 1 6 5 021 398 o 27 ~ff III I 337 400 21113 4848 4618 13991 0468 0018 180 008 3 24 017 SFf 128 tmiddot 253 100 8474 21 62 1 465 13705 0435 o 056 267 028 SFF 101 ~ 309 25U 16105 3780 2786 16305 0647 0024 0728 008E 351 019 SFF 102 I 355 500 25282 6792 4524 42243 0596 0009 379 009 SFF ])3 I 266 200 11533 3081 2502 18971 0542 0033 0727 0047 374 022 SH 125 ~~ 30C 300 16990 4419 2974 15303 0627 0025 0249 0074 426 020 SPf 121 ~ 255 100 9565 1994 1 757 1688E 0233 0033 441 028 SF-F 120 lj 295 200 122 19 2705 2020 177 70 0565 0029 369 o 21 SFF 137 F 3 us 300 19426 4655 3934 221 67 O40E 0028 0584 0215 371 o 3

LCKG NUiF SUCKEF --------------shySL - 27 468 650 26911 71 52 4 615 315UO 0057 0013 373 023 SO 354 ~ 373 650 31127 7054 5968 51358 0046 0009 l 81 O II 395 o 20 SD 229 289 250 14922 3621 3444 124667 0060 0011 l 4 8 019 408 023 5C 244 340 6CG 28534 6270 4761 84480 0035 0005 3 96 O G7 SD 235 315 400 24653 5580 6439 83272 0043 0005 348 010 5D 243 349 500 231 2 9 4906 4202 112223 0040 0005 1 19 007 348 006 SD 236 331 500 223 32 51 07 4 410 130606 0028 0005 143 011 315 006 SD 39 ~ 35H 600 26374 5950 4700 2651 23 0033 0003 301 003 SD 149 382 750 28403 5993 6072 156098 0029 0OU4 1 38 009 312 004 S[l 359 F 373 650 30338 6955 6546 263390 0042 O OC 3 340 003 SD 234 396 900 28596 7075 6941 144788 0009 0004 1 62 009 2 24 005 SI 361 269 250 11459 2293 2031 1903 41 0028 0007 315 012 SC 80 F 374 BOO 384 85 8966 6685 159135 0024 0002 251 003 SO 246 310 350 18813 3952 3213 153190 0009 000 6 347 005 5C 245 391 700 32025 71 77 6U31 82236 0040 0004 3 34 0U6 SD 232 376 750 313 08 73 64 5779 115168 0039 0004 309 005 sc 242 365 600 29690 7001 5671 141198 O 04 2 0004 364 007 sr 247 340 500 20234 44 66 5033 1418 20 0013 000 5 376 009 SD 358 F 287 250 13125 2684 2598 151461 0047 0007 336 011 SC 237 352 650 31494 7244 6057 103965 0047 0004 345 005 sr 241 285 300 17629 3695 4462 142793 0054 0006 310 OOH SD 242 365 600 29690 7001 5 671 141198 O 04 2 0003 364 005 SD 40 ~ 350 600 6104 6104 4661 14 7615 0048 0003 3 40 O 06 $[j 35S ~I 36B 750 36904 8139 6570 160656 0045 0003 311 0 04 SO 228 fmiddotj 276 250 10815 2464 2427 134225 0041 0 009 3 30 014 SC 340 ~J 398 1000 34339 7497 5890 141423 0055 0003 364 o 04 so 238 F 385 750 30650 6900 6212 2158 23 a 04 2 0 003 352 004 SD 60 359 700 28280 6285 4617 110433 0044 0004 3 30 006 SI 353 F 385 750 3 S9 38 7644 7139 -258948 0069 0002 307 0U9 so 23) 412 850 34863 8071 6466 -303e31 0042 OOG2 350 0C8

[ lFECT

~T 261 F 604 1260 36501 71 66 5114 159498 0110 0003 309 00 5 Sl 365 F 523 1050 37761 66 4 3 4 7se 143495 0078 0003 2B9 005 SO 366 f 490 800 2b271 4809 )470 132915 0059 0 004 291 007 T 26U F 620 1650 38076 6672 2553 45000 0073 ~l 3b 3 h 484 750 2604 2 6867 J 346 133333 0057 0007 322 01( S l~ 36 i 425 750 296 13 5602 3943 1567Je 0112 0004 2 56 006 ~[ 14l ~ ~O5 850 32175 57 40 4 028 171576 0081 1 00 3 2 62 OU5 Sl 25H ~ ~ 515 850 366 52 6752 5357 152863 0076 0003 270 005 St 259 ~ 493 850 29516 5565 3636 13661n 0C48 0O G4 281 006

H 211 595 13 SO 25(179 4410 3211 126500 O U4 7 0OC7 306 o 16

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

----------------------------------------------------------------------------------------------------

---------

9 Table 1 contd

TOTAL SAMPLE SAMPLE SJlfoIPLf SEX FOH FISH -In DFY ASH COLiNT 137C1 226 40Ra K

f L[NGTH HT liT ~IT bull WT TUpound rCig ( fT liT) fCig(~[T lIT) rCia (HT Tl (mm) (g) (g) (g) (g) (min) 2SC 2 SD 2sr

rr 212 685 2100 27739 5166 3075 973 33 0030 0007 326 016 PI 202 542 900 23792 4521 6776 146210 0015 0004 213 C13 255 004 ~F 203 416 500 35791 7586 7712 143915 0021 0003 1 70 0 06 244 003 11 221 625 1300 24838 4196 3011 143341 0027 0004 311 005 rF 215 630 1500 326 91 5955 4003 148638 0072 0003 307 0 04 If 226 665 1700 39645 734) 4827 258933 0079 0002 0382 0079 305 003 ~f 227 620 1300 40049 7520 5047 137928 0059 0003 327 004 FF 209 598 1200 239 )l 41 08 2632 142800 0018 0004 0198 0076 280 006 FF 213 605 1650 354 48 6908 4340 149451 0074 0003 315 o 04 PI 214 700 2000 36007 6915 4463 1331 25 0045 0003 291 o 04 RF 220 590 1200 32717 5880 4028 143431 0043 0003 279 o 0 4 PI 219 670 1850 36918 6710 4585 178380 0045 0003 294 o 04 RF 218 525 amp50 29142 5525 6778 147940 0013 0003 263 005 FF 217 350 250 19690 4024 4079 120351 0005 0005 252 008 FF 210 621 1600 41923 7692 5041 140738 0053 0003 0313 0056 318 o 04 PI 228 390 350 24477 4745 5310 156903 0000 0004 272 011 273 006 PI 225 580 1200 26311 4954 3256 151240 0016 0004 317 005 H 224 7 666 1600 41274 6586 4533 144165 0024 0002 259 004 PI 201 650 1750 29771 4823 3246 119985 0032 0004 212 005 RF 216 7 632 1500 35978 6218 3958 135021 0024 0003 279 004

MlrfHEFN PIKE

SI 256 I 590 1500 33931 7576 6940 315H 0113 0007 360 013 SD 328 I 523 1250 29542 6595 5455 44010 0102 0007 390 012 SD 336 f 755 4200 37690 8691 6172 23000 o 11B 0012 3 79 o 2 ~ SO 146 f 566 1350 31008 7022 5826 151865 0140 0004 356 004 SC 147 I 641 2200 37106 81 87 714 2 -153981 0133 0009 392 015 SO 145 I 570 1350 36686 7759 ( bull 9~) 1 1 f- ( I bull - ~ 111 I bull J~

SD 220 I 571 1500 37020 7901 7241 97050 0129 0004 369 007 sr 351 570 1500 34651 8717 7056 128053 0104 0004 348 006

ff 154 600 1550 39260 9253 9855 000 0046 0004 0488 0073 331 009

S FF 401 I 618 2100 3D 1 16 6534 5756 13251 0638 0018 0386 0045 349 015 SRI 402 f 591 1800 39621 9821 8113 6510 0599 0021 0831 0045 345 019

INCONIILJ

~F 222 f 746 5200 44861 16642 6366 155321 0024 0002 0091 0063 277 003 ~F 207 7 323 350 15292 3285 4431 284083 0026 0007 3 71 018 Ill 223 1 608 2500 32311 9219 5376 135365 0040 0003 349 005

SAUGEF

LIIP 99 301 300 13344 3590 5598 139371 0090 0 C0 7 209 0 11

WP 96 222 140 7280 17 95 2579 140840 0052 0013 257 0 2U 2CO 0162147 3306 149866 0078 0012LlIP 98 7 236 160 8566 299 014

LIJP 100 7 260 180 9508 2597 3974 153236 0116 0011 2C2 011LtlP 81 280 260 136 49 3427 5422 137993 0066 0007 318 012284 240 11923 3018 4 90 4 143275 0094 0008

LIiP 84 290 260 16292 4588 6496 -226429 0074 0013 2 ee 020

LIoiP 66 320 320 17569 44 39 7492 -238741 0066 0010 231 015

lotP 91 250 16~ 7373 1711 3119 146798 0110 0015

LliP 82

309 01

LIP 92 238 120 8B19 2227 3638 131731 0175 0011 30e 017

LliP 93 242 140 6719 1862 2904 100861 0072 0019 3 3 4 0 2

L P 95 25U 140 7732 2055 3406 129P2~ Goeo U 014 3()P 010 2 (7 n if17 95 2579 163715 0032 (101UiP 9b 222 140 7280

U P 101 26U 180 10996 2601 ( t ~ 1(7105 00~5 OOG8 J O J o 12

LI P 10) 226 12Ll 7533 1992 3264 141465 0060 0015 262 Ol~

oon 0CU7 2 bull ~l 010LI P 2 166 4 4049 7251 103236

-- -- ---- ---------- ---- --------- ---- ---- -- ---- - -- -- -- - - - - - - -- ---- ------ -------- -- --- ----------- ------ ------------

-- ------ ----

10

Table J contd

bull 137CS Illl0IUM 40K

LENGTH WT WT bull WT WT TIltE pCig (WET WT) fCig (WET WT) pCig (WET WT)SAMPLE SEX FOIlK TOTAL WET OilY ASH COUNT

(mm) (9 ) (9 ) (9 ) (9 ) (lrin) 2 SO 250 2 SO

RO UNO ~HITEF ISH

SC 320 F 356 450 28975 7200 6856 45833 0054 0 010 457 024 SC 312 F 347 450 27927 6510 6537 116667 0 059 0007 457 021 SO 338 F 400 650 36975 8678 8726 36667 0068 0009 422 022 SI 347 F 365 550 311 43 7515 7047 101000 0054 0 007 432 020 SO 153 F 379 600 25871 6484 5325 42837 0 079 0012 471 025 SO 82 F 336 400 228 21 5782 4630 1341 67 0064 0008 466 022 SO 157 ~I 391 650 29336 8083 7069 10))33 0072 0007 404 019 SO 268 ~ 393 700 33209 9316 8292 153183 0052 o 005 410 018 SO 270 M 361 500 31866 8479 7666 37333 0030 0010 220 016 SO 264 M 420 800 28106 6927 6093 75333 0044 SO 269 M 355 550 341 37 8959 9141 1541 56 0020 0003 330 008 342 004 SO 344 F 427 900 30779 7310 7213 141098 0026 0003 234 015 349 004 SO 83 H 338 450 27857 6716 6691 125331 0037 0004 2 84 018 375 005 SI 262 F 420 950 23251 7202 4654 148891 o 044 0005 1 07 011 350 005 SO 54 M 372 550 30200 8276 7113 143405 0057 0004 1 37 011 381 o 05 SO 58 M 356 500 30388 7476 7366 145525 0045 0003 1 01 014 390 005 51 341 M 384 650 42558 12097 11306 141391 0039 0003 233 011 364 004 SO 346 F 403 750 33948 8943 6679 208916 0060 0003 356 003 SO 349 M 404 700 441 78 11010 9250 101558 0180 0004 445 005 SO 63 ~l 352 450 27312 6869 7951 151190 0037 0004 301 009 353 005 SO 65 M 387 600 28165 7020 6600 118995 0051 0004 360 005 SO 265 F 380 600 40038 10746 10690 125416 0060 0003 366 004 SO 337 F 427 900 32473 8620 6941 127750 0067 0004 370 005 SO 350 ~t 401 650 38241 10343 9682 316308 011 7 0002 1 07 007 324 003 SO 314 M 393 900 39814 10755 8 448 -549436 0051 0003 3 99 006 SO 316 F 278 600 35332 9412 8335 -256578 0050 0005 355 008 SO 311 M 400 750 313 78 8503 6509 -2971 76 0066 0006 587 009 SO 34e M 371 600 38879 10613 8168 -252886 004e 0003 366 008 SO 263 ~I 366 500 25320 9707 8007 -252841 0070 O DC 6 539 013 SO 270 M 361 500 31866 8479 7666 -17))83 0031 0011 302 022 SI) 315 M 380 600 38884 10714 9248 -260878 0 058 0004 410 007 51) 313 F 396 600 31429 7827 7836 1161 68 0062 0OC4 380 005

SFF 205 F 408 600 18562 4285 4558 190717 0082 0008 1 50 016 474 022 SFF 210 F 415 700 21178 5207 4449 34617 0311 217 009 467 029 SFF 203 F 368 550 15816 4090 3208 183902 0104 520 025 SFF 211 F 202 50 4981 1181 1 353 149000 0 189 350 032 698 049 SFF 217 F 295 300 16071 4049 3722 120417 0198 1 97 018 564 027 SrF 204 F 370 500 26717 6910 4967 137000 0083 403 019 S~F 202 F 351 500 24457 5822 4802 32367 0398 483 028 SFF 207 F 385 600 23914 4462 4174 278867 0076 371 016 SF 212 ~27 50 7547 1894 2278 981 70 0177 618 042 SfF 215 ~t 338 400 25968 6544 5764 190917 0304 0 014 215 008 471 021 SFF 216 M 315 400 19271 5045 3764 120900 0250 0014 511 024 SF 209 M 305 300 20608 5033 4023 98018 0371 494 024 SFF 213 M 260 100 12305 31 58 3549 145750 0178 527 032 534 028

Footnotes

The length measurement for these fish is dorsal fin to fork of tail

t The Louis Lake fish were received whole and partly decayed Heads were removed but gut contents were included in the sample counted

t A minus (_) sign is a denotation that this datum is a sum of two separately analyzed portions of the fish sample

t Not detectable above background 22 6Ra

Table 2 Means and one standard deviation errors for activities of 137Cs and 22 6Ra and for total wet weight and fork length of fish populations from Great Slave Lake Louis Lakeuro Lake Winnipeg and ELA All statistics were done on log-transformed data The number in brackets is the sample size (n) The sample size given for 137Cs also applies to total weight and fork length

Mean Total Weight Mean Fork Length Mean 137Cs Mean 226Ra Date of xLocati on Sampling Species g ~ 1S0 rnm 1S0 pCikg wet x 1S0 pCi kg wet x

t 1S0

1 Great Slave Lake NWT

a) West Basin (Ft Resolution)

Apr-Sept 1978 Lake whitefish Cisco Burbot

708 655

1180

148 145 1 76

359 361 579

113 115 1 21

144 34

259

143 (29) 327 (23) 270 (21)

114 119 0785

1 49 (7) 157 (4)310 (6)

b) Christie Bay (Snowdri ft)

Apr-Sept 1978 Lake whi tefi sh Round whitefish Cisco Longnose sucker Lake trout (Sept) Lake trout (Apr)

611 609 249 554

2480 1660

210 1 26 145 1 51 218 256

359 377 286 351 580 505

1 24 109 114 114 127 134

496 530 830 363

1570 1490

135 (28) 151 (32) 1 72 (34) 164 (30) 139 (32) 1 46 (8)

0979 184 1 33 147 0068

171 (6) 163 (9) 165 (24) 115 (6) 191 (10)

c) McLeod Bay (Ft Re 1 i ance)

Apr-Sept 1978 Round whitefish Cisco Lake trout

294 302

3160

253 156 240

319 314 613

125 113 126

181 521 642

1 80 (13) 140 (28) 202 (29)

252 0 938 0062

157 (6) 195 (16) 154 (9)

2 Louis Lake Sask amp NIfT Border

Oct 1978 Lake whi tefi sh 246 118 2150 135 (24) 218 1 26 (23)

3 Lake Winnipeg Man Feb 1980 June 1979

Lake whi tefish Sauger

776 182

111 140

376 257

104 112

252 778

1 59 145

(11) (16)

1 37 147

4 Experimental Area Onto

Lakes

a) b)

Lake 302S Lake 226SW

Lake whitefish Lake whitefish

272 147 301 1 27

1430 1240

147 (15) 146 (22)

218 150 (10)

Not detectable

Tab le 3 137CS activities in muscle bone skin and viscera of three lake trout from Lake 223 ELA Viscera includes gut and internal organs

Fork Length Total Weight Fraction Wet 137CS of Total 137CS Sample (1TIT1) (g) Fract ltgtn Weight (g) pCig Wet for Sample

38 310 515 Muscle 241 0 87 plusmn 0042 794 Bone 119 157 plusmn 039 71 Skin 324 040 plusmn 0087 4 9 Viscera 418 055 plusmn 0072 87

Combined 3271 081

shyN

39 235 175 Muscle 513 068 plusmn 0067 644 Bone 67 102 plusmn 039 127 Skin 117 043 plusmn 016 93 Vi scera 157 0 47 plusmn 016 136

Combined 854 0 63

40 290 195 Muscle 682 073 plusmn 0057 690 Bone 7-8 074 plusmn 033 80 Skin 177 059 plusmn 0 15 145 Viscera 18 7 0 33plusmn014 8 6

Combined 1124 064

13 Table 4 Concentrations of calcium potassium copper and zinc ratios of Ca 22 6 Ra and K13 7CS and percent

abundance of 40K (100 4oKK) in fish samples from Great Slave Lake (SO = Snowdrift Christie Bay RF = Ft Resolution West Basin SRF = Ft Reliance McLeod Bay) Louis Lake (LL) and Lake 302S Expe ri men ta 1 Lakes A rea (ELA)

~~--~-=~-~=~~-

Wet Wt Ca 22 6RaSample (g) Ca K Cu Zn K1 37CS 40K

~Molesg wet weight -- ~MolesfCi - shy

Lake whitefi sh

SO 209 31915 SO 5 30996 SO 31 26717 SO 326 6988 SO 188 25960 SO 191 251 33 SO 29 26479 SO 78 30775

RF 91 24419 RF 64 237 91 RF 44 24931 RF 51 288 81 RF 81 16361 RF 70 27374 RF 37 29498

LL 3 23720 LL 300 13090 LL 6 17942 LL 310 26587 LL 7-A 16642 LL 7-B 20778 LL 23 2496 LL 5 18963 LL 9 23906 LL 18 19274 LL 22 21361 LL 10 218 83 LL 13 17181 LL 21 16017 LL 1 111 55 LL 19 17769 LL 16 17734 LL 11 16608 LL 2 17429 LL 4 21346 LL 14 191 60 LL 15 13669 LL 9 13652

449 623 623

773 698 773

195

168

923

165

780 854 857 903 72 6 997 94 1 951

910 941 749 821 864 944 693

903 836 913 854 877 870 67 3

831 857 921 898 974 739 780 916 934 863 852 872 862 882 79 0

0011

0011

010 0 11 011 012 014 013 014 014

011 0089 0092 0083 0067 0087 0066

025 032 029 028 024 038 047 031 030 035 029 039 028 036 116 030 035 031 030 031 032 036 035

335

499

661 466

931

662

58 0

791

130 108 276 158 161 199 171 211

759 105 107 342 393 726 990

0028 0056 0040 0067 0036 0048 0049

0040 0042 0033 0035 0031 0026 0041 0069 0054 0048 0039 0024 0035 0046 0052

00152 00160 00151 00214

00164 00155 00130

00162 00155 00172 00150 00154 00146 00189

0 0151 00171 00177 00171 00171 00176 00252

00160 00164 00153 00177 00160 00201 00186 00170 00161 00180 00180 00176 00189 00201 00166

Round whitefish

SO 269 341 37 SO 344 307 79 SO 83 27857 SO 262 23251 SO 54 30200 SO 58 30388 SO 341 42558 SO 63 27312 SO 350 38241

SRF 205 18562 SRF 210 211 78 SRF 211 4981 SRF 217 16071 SRF 215 25968 SRF 213 12305

127 105 112 748 973 673 948

157 122

112 773

117 948

135

103 102 107 104 112 107 106 101 995

105 108 885

117 91 3 Ill

014 014 013 011 013 011 011 016 016

017 013 021 015 013 018

385 448 395 699 71 0 667 407 522

114

74 8 356 335 481

256

514 393 290 237 196 238 271 2 73 085

128 035 047 059 030 063

00119 00122 00125 00120 00122 00130 00123 00125 00116

00161 00154 00282 00172 00184 00171

14

Table 4 Contd _ _ -_ -- ~lt_ __ ~o __ ~ _~a~~~_=_~_ ~_-~= ~~a -+--Oo~=-_ z

Wet lit Sal11l le (g) Ca K Cu Zn Can ampRa K 137C5 t uKmiddot

~Molesg wet weight lMolesfCi -shy

Trout

SO 335 31993 299 885 0086 115 067 00155 SO 213 SO 79 SO 114

34359 24322 31086

122 249 898

714 941 708

OOOS 0086

0081

598tS09 t 345

032 067 034

00171 00165 00175

SO 335 31993 299 885 0095 066 SO 217 34175 102 683 0095 107 030 00161 SO 124 SO 125

26705 39245 145

499 754

0029 010 t177

033 049

00166 00164

SO 115 29276 783 009 051 00167

SRF 47 25535 824 015 011 00178 SRF 37 34456 703 0095 012 00165 SRF 40 27916 734 013 006 00212 SRF 73 24050 675 0004 0049 028 00172 SRF 28 311 99 655 0058 035 00161 SRF 100 36491 51 3 020 010 00155 SRF 25 24284 680 009 0089 00172 SRF 2 20136 982 011 0083 00173 SRF 93 SRF 88

22510 18386 374

882 941

010 011 t 0069

0045 00174 00163

SRF 96 277 83 831 013 0085 00171

Cisco

SO 35 13214 877 031 069 00206 SO 154 23430 887 013 127 00158 SO 50 12463 844 024 065 00066 SO 77 15243 921 025 076 00155 SO 343 23205 803 013 074 00139 SO 284 141 24 877 032 084 00151 SO 252 15038 934 034 120 00141 SO 324 10162 849 020 1 57 00088 SO 249 14040 588 570 036 857 160 00144 SO 25 24818 921 671 021 615 185 00151 SO 254 15583 105 908 029 478 096 00165 SO 279 16514 798 977 035 ~62 130 00155 SO 248 20211 936 021 093 00146 SO 85 14336 859 013 077 00152 SO 293 14458 905 023 102 00153 SO 294 14416 893 031 182 00142 SO 297 10748 887 032 134 00146 SO 306 22948 898 017 067 00145 SO 266 26717 885 018 107 00111 SO 321 13510 798 017 079 00165 SO 36 9441 744 018 062 00154 SO 303 23015 944 029 062 00155 SO 251 8817 811 014 011 00139 SO 283 21538 923 016 117 00140 SO 322 12771 890 030 017 00150 SO 158 22720 987 018 215 00124

RF 112 25723 844 474 014 481 192 00151 RF 118 RF 107 RF 104

25077 22360 19733

973 829 872 683

011 016 015

138 1O4t

t

00136 00139 00160

SRF 116 14256 524 964 0007 022 823 032 00186 SRF 118 14279 951 023 020 00148 SRF 136 12503 916 022 020 00191 SRF 124 20799 949 021 021 00130 SRF 105 22436 875 025 016 00146 SRF 114 21499 818 691 0006 034 011 00136 SRF 108 18472 982 022 0096 00141

15

Table 4 Contd =-t II~~ ~-

Wet Wt Sample (g) Ca K Cu Zn Ca 226 Ra K 13 7Cs 4o K

~Molesg wet weight ~MolesfCi -shy

SRF SRF SRF SRF SRF SRF SRF SRF SRF

112 126 109 115 111 101 133 125 120

18519 15072 109B2 14752 21113 161 85 115 33 16990 12219

474

49 9

104 864 903 89 8 862 934 79B 941 803

0 007

028 0 29 023 022 024 025 028 023 025

688

685

016 016 025 031 018 014 0055 011 014

00133 00167 00145 00158 00134 00134 00167 00162 00164

Longnose sucker

SO 354 311 27 SO 229 14922 SO 243 231 29 SO 236 22332 SO 149 284 03 SO 234 285 96

623 898 549 698 549

110

877 890 859 87 7 808 859

016 011 013 0 17 012 013

344 607 461 4B8 39B 677

191 148 215 313 279 955

0 0161 00164 00145 00128 00138 00093

Burbot

RF 202 RF 203 RF 226 RF 209 RF 210 RF 228 RF 216

23792 35791 39645 23931 41923 24477 35978

873

105

655 650 749 685 770 680 632

0004

016 0 14 0095 0070 0090 018 0070

513

385

436 309 095 381 145t

263

00139 00134 00145 00146 00147 00143 00158

Northern

SO 336

RF 154

SRF 401 SRF 402

~i ke

37690

39200

30116 39021 773

71 4

801

834 974

0003

011

014

014 017 930

061

1 67

013 016

00190

00148

00149 00126

lnconnu

RF 222 RF 223

44801 32311

73 8 885

011 010

315 221

00131 00141

Lake whi tefi sh

ELA3 5 20310 ELA3 6 261 54 ELA3 9 28815 ELA3 13 34572 ELAJ 14 15561 ELA3 15 111 69

852 867 951 40 2 808 703

0 20 0093 019 0 12 017 0 17

0060 0057 0052 0020 0076 0 10

00150 00160 00248 0 0301 00140 00140

Percent natural abundance of 40K is 0011B (Friedlander et al 1964)

t 226 Ra near or below detection limits

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

Table 2 Means and one standard deviation errors for activities of 137Cs and 22 6Ra and for total wet weight and fork length of fish populations from Great Slave Lake Louis Lakeuro Lake Winnipeg and ELA All statistics were done on log-transformed data The number in brackets is the sample size (n) The sample size given for 137Cs also applies to total weight and fork length

Mean Total Weight Mean Fork Length Mean 137Cs Mean 226Ra Date of xLocati on Sampling Species g ~ 1S0 rnm 1S0 pCikg wet x 1S0 pCi kg wet x

t 1S0

1 Great Slave Lake NWT

a) West Basin (Ft Resolution)

Apr-Sept 1978 Lake whitefish Cisco Burbot

708 655

1180

148 145 1 76

359 361 579

113 115 1 21

144 34

259

143 (29) 327 (23) 270 (21)

114 119 0785

1 49 (7) 157 (4)310 (6)

b) Christie Bay (Snowdri ft)

Apr-Sept 1978 Lake whi tefi sh Round whitefish Cisco Longnose sucker Lake trout (Sept) Lake trout (Apr)

611 609 249 554

2480 1660

210 1 26 145 1 51 218 256

359 377 286 351 580 505

1 24 109 114 114 127 134

496 530 830 363

1570 1490

135 (28) 151 (32) 1 72 (34) 164 (30) 139 (32) 1 46 (8)

0979 184 1 33 147 0068

171 (6) 163 (9) 165 (24) 115 (6) 191 (10)

c) McLeod Bay (Ft Re 1 i ance)

Apr-Sept 1978 Round whitefish Cisco Lake trout

294 302

3160

253 156 240

319 314 613

125 113 126

181 521 642

1 80 (13) 140 (28) 202 (29)

252 0 938 0062

157 (6) 195 (16) 154 (9)

2 Louis Lake Sask amp NIfT Border

Oct 1978 Lake whi tefi sh 246 118 2150 135 (24) 218 1 26 (23)

3 Lake Winnipeg Man Feb 1980 June 1979

Lake whi tefish Sauger

776 182

111 140

376 257

104 112

252 778

1 59 145

(11) (16)

1 37 147

4 Experimental Area Onto

Lakes

a) b)

Lake 302S Lake 226SW

Lake whitefish Lake whitefish

272 147 301 1 27

1430 1240

147 (15) 146 (22)

218 150 (10)

Not detectable

Tab le 3 137CS activities in muscle bone skin and viscera of three lake trout from Lake 223 ELA Viscera includes gut and internal organs

Fork Length Total Weight Fraction Wet 137CS of Total 137CS Sample (1TIT1) (g) Fract ltgtn Weight (g) pCig Wet for Sample

38 310 515 Muscle 241 0 87 plusmn 0042 794 Bone 119 157 plusmn 039 71 Skin 324 040 plusmn 0087 4 9 Viscera 418 055 plusmn 0072 87

Combined 3271 081

shyN

39 235 175 Muscle 513 068 plusmn 0067 644 Bone 67 102 plusmn 039 127 Skin 117 043 plusmn 016 93 Vi scera 157 0 47 plusmn 016 136

Combined 854 0 63

40 290 195 Muscle 682 073 plusmn 0057 690 Bone 7-8 074 plusmn 033 80 Skin 177 059 plusmn 0 15 145 Viscera 18 7 0 33plusmn014 8 6

Combined 1124 064

13 Table 4 Concentrations of calcium potassium copper and zinc ratios of Ca 22 6 Ra and K13 7CS and percent

abundance of 40K (100 4oKK) in fish samples from Great Slave Lake (SO = Snowdrift Christie Bay RF = Ft Resolution West Basin SRF = Ft Reliance McLeod Bay) Louis Lake (LL) and Lake 302S Expe ri men ta 1 Lakes A rea (ELA)

~~--~-=~-~=~~-

Wet Wt Ca 22 6RaSample (g) Ca K Cu Zn K1 37CS 40K

~Molesg wet weight -- ~MolesfCi - shy

Lake whitefi sh

SO 209 31915 SO 5 30996 SO 31 26717 SO 326 6988 SO 188 25960 SO 191 251 33 SO 29 26479 SO 78 30775

RF 91 24419 RF 64 237 91 RF 44 24931 RF 51 288 81 RF 81 16361 RF 70 27374 RF 37 29498

LL 3 23720 LL 300 13090 LL 6 17942 LL 310 26587 LL 7-A 16642 LL 7-B 20778 LL 23 2496 LL 5 18963 LL 9 23906 LL 18 19274 LL 22 21361 LL 10 218 83 LL 13 17181 LL 21 16017 LL 1 111 55 LL 19 17769 LL 16 17734 LL 11 16608 LL 2 17429 LL 4 21346 LL 14 191 60 LL 15 13669 LL 9 13652

449 623 623

773 698 773

195

168

923

165

780 854 857 903 72 6 997 94 1 951

910 941 749 821 864 944 693

903 836 913 854 877 870 67 3

831 857 921 898 974 739 780 916 934 863 852 872 862 882 79 0

0011

0011

010 0 11 011 012 014 013 014 014

011 0089 0092 0083 0067 0087 0066

025 032 029 028 024 038 047 031 030 035 029 039 028 036 116 030 035 031 030 031 032 036 035

335

499

661 466

931

662

58 0

791

130 108 276 158 161 199 171 211

759 105 107 342 393 726 990

0028 0056 0040 0067 0036 0048 0049

0040 0042 0033 0035 0031 0026 0041 0069 0054 0048 0039 0024 0035 0046 0052

00152 00160 00151 00214

00164 00155 00130

00162 00155 00172 00150 00154 00146 00189

0 0151 00171 00177 00171 00171 00176 00252

00160 00164 00153 00177 00160 00201 00186 00170 00161 00180 00180 00176 00189 00201 00166

Round whitefish

SO 269 341 37 SO 344 307 79 SO 83 27857 SO 262 23251 SO 54 30200 SO 58 30388 SO 341 42558 SO 63 27312 SO 350 38241

SRF 205 18562 SRF 210 211 78 SRF 211 4981 SRF 217 16071 SRF 215 25968 SRF 213 12305

127 105 112 748 973 673 948

157 122

112 773

117 948

135

103 102 107 104 112 107 106 101 995

105 108 885

117 91 3 Ill

014 014 013 011 013 011 011 016 016

017 013 021 015 013 018

385 448 395 699 71 0 667 407 522

114

74 8 356 335 481

256

514 393 290 237 196 238 271 2 73 085

128 035 047 059 030 063

00119 00122 00125 00120 00122 00130 00123 00125 00116

00161 00154 00282 00172 00184 00171

14

Table 4 Contd _ _ -_ -- ~lt_ __ ~o __ ~ _~a~~~_=_~_ ~_-~= ~~a -+--Oo~=-_ z

Wet lit Sal11l le (g) Ca K Cu Zn Can ampRa K 137C5 t uKmiddot

~Molesg wet weight lMolesfCi -shy

Trout

SO 335 31993 299 885 0086 115 067 00155 SO 213 SO 79 SO 114

34359 24322 31086

122 249 898

714 941 708

OOOS 0086

0081

598tS09 t 345

032 067 034

00171 00165 00175

SO 335 31993 299 885 0095 066 SO 217 34175 102 683 0095 107 030 00161 SO 124 SO 125

26705 39245 145

499 754

0029 010 t177

033 049

00166 00164

SO 115 29276 783 009 051 00167

SRF 47 25535 824 015 011 00178 SRF 37 34456 703 0095 012 00165 SRF 40 27916 734 013 006 00212 SRF 73 24050 675 0004 0049 028 00172 SRF 28 311 99 655 0058 035 00161 SRF 100 36491 51 3 020 010 00155 SRF 25 24284 680 009 0089 00172 SRF 2 20136 982 011 0083 00173 SRF 93 SRF 88

22510 18386 374

882 941

010 011 t 0069

0045 00174 00163

SRF 96 277 83 831 013 0085 00171

Cisco

SO 35 13214 877 031 069 00206 SO 154 23430 887 013 127 00158 SO 50 12463 844 024 065 00066 SO 77 15243 921 025 076 00155 SO 343 23205 803 013 074 00139 SO 284 141 24 877 032 084 00151 SO 252 15038 934 034 120 00141 SO 324 10162 849 020 1 57 00088 SO 249 14040 588 570 036 857 160 00144 SO 25 24818 921 671 021 615 185 00151 SO 254 15583 105 908 029 478 096 00165 SO 279 16514 798 977 035 ~62 130 00155 SO 248 20211 936 021 093 00146 SO 85 14336 859 013 077 00152 SO 293 14458 905 023 102 00153 SO 294 14416 893 031 182 00142 SO 297 10748 887 032 134 00146 SO 306 22948 898 017 067 00145 SO 266 26717 885 018 107 00111 SO 321 13510 798 017 079 00165 SO 36 9441 744 018 062 00154 SO 303 23015 944 029 062 00155 SO 251 8817 811 014 011 00139 SO 283 21538 923 016 117 00140 SO 322 12771 890 030 017 00150 SO 158 22720 987 018 215 00124

RF 112 25723 844 474 014 481 192 00151 RF 118 RF 107 RF 104

25077 22360 19733

973 829 872 683

011 016 015

138 1O4t

t

00136 00139 00160

SRF 116 14256 524 964 0007 022 823 032 00186 SRF 118 14279 951 023 020 00148 SRF 136 12503 916 022 020 00191 SRF 124 20799 949 021 021 00130 SRF 105 22436 875 025 016 00146 SRF 114 21499 818 691 0006 034 011 00136 SRF 108 18472 982 022 0096 00141

15

Table 4 Contd =-t II~~ ~-

Wet Wt Sample (g) Ca K Cu Zn Ca 226 Ra K 13 7Cs 4o K

~Molesg wet weight ~MolesfCi -shy

SRF SRF SRF SRF SRF SRF SRF SRF SRF

112 126 109 115 111 101 133 125 120

18519 15072 109B2 14752 21113 161 85 115 33 16990 12219

474

49 9

104 864 903 89 8 862 934 79B 941 803

0 007

028 0 29 023 022 024 025 028 023 025

688

685

016 016 025 031 018 014 0055 011 014

00133 00167 00145 00158 00134 00134 00167 00162 00164

Longnose sucker

SO 354 311 27 SO 229 14922 SO 243 231 29 SO 236 22332 SO 149 284 03 SO 234 285 96

623 898 549 698 549

110

877 890 859 87 7 808 859

016 011 013 0 17 012 013

344 607 461 4B8 39B 677

191 148 215 313 279 955

0 0161 00164 00145 00128 00138 00093

Burbot

RF 202 RF 203 RF 226 RF 209 RF 210 RF 228 RF 216

23792 35791 39645 23931 41923 24477 35978

873

105

655 650 749 685 770 680 632

0004

016 0 14 0095 0070 0090 018 0070

513

385

436 309 095 381 145t

263

00139 00134 00145 00146 00147 00143 00158

Northern

SO 336

RF 154

SRF 401 SRF 402

~i ke

37690

39200

30116 39021 773

71 4

801

834 974

0003

011

014

014 017 930

061

1 67

013 016

00190

00148

00149 00126

lnconnu

RF 222 RF 223

44801 32311

73 8 885

011 010

315 221

00131 00141

Lake whi tefi sh

ELA3 5 20310 ELA3 6 261 54 ELA3 9 28815 ELA3 13 34572 ELAJ 14 15561 ELA3 15 111 69

852 867 951 40 2 808 703

0 20 0093 019 0 12 017 0 17

0060 0057 0052 0020 0076 0 10

00150 00160 00248 0 0301 00140 00140

Percent natural abundance of 40K is 0011B (Friedlander et al 1964)

t 226 Ra near or below detection limits

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

Tab le 3 137CS activities in muscle bone skin and viscera of three lake trout from Lake 223 ELA Viscera includes gut and internal organs

Fork Length Total Weight Fraction Wet 137CS of Total 137CS Sample (1TIT1) (g) Fract ltgtn Weight (g) pCig Wet for Sample

38 310 515 Muscle 241 0 87 plusmn 0042 794 Bone 119 157 plusmn 039 71 Skin 324 040 plusmn 0087 4 9 Viscera 418 055 plusmn 0072 87

Combined 3271 081

shyN

39 235 175 Muscle 513 068 plusmn 0067 644 Bone 67 102 plusmn 039 127 Skin 117 043 plusmn 016 93 Vi scera 157 0 47 plusmn 016 136

Combined 854 0 63

40 290 195 Muscle 682 073 plusmn 0057 690 Bone 7-8 074 plusmn 033 80 Skin 177 059 plusmn 0 15 145 Viscera 18 7 0 33plusmn014 8 6

Combined 1124 064

13 Table 4 Concentrations of calcium potassium copper and zinc ratios of Ca 22 6 Ra and K13 7CS and percent

abundance of 40K (100 4oKK) in fish samples from Great Slave Lake (SO = Snowdrift Christie Bay RF = Ft Resolution West Basin SRF = Ft Reliance McLeod Bay) Louis Lake (LL) and Lake 302S Expe ri men ta 1 Lakes A rea (ELA)

~~--~-=~-~=~~-

Wet Wt Ca 22 6RaSample (g) Ca K Cu Zn K1 37CS 40K

~Molesg wet weight -- ~MolesfCi - shy

Lake whitefi sh

SO 209 31915 SO 5 30996 SO 31 26717 SO 326 6988 SO 188 25960 SO 191 251 33 SO 29 26479 SO 78 30775

RF 91 24419 RF 64 237 91 RF 44 24931 RF 51 288 81 RF 81 16361 RF 70 27374 RF 37 29498

LL 3 23720 LL 300 13090 LL 6 17942 LL 310 26587 LL 7-A 16642 LL 7-B 20778 LL 23 2496 LL 5 18963 LL 9 23906 LL 18 19274 LL 22 21361 LL 10 218 83 LL 13 17181 LL 21 16017 LL 1 111 55 LL 19 17769 LL 16 17734 LL 11 16608 LL 2 17429 LL 4 21346 LL 14 191 60 LL 15 13669 LL 9 13652

449 623 623

773 698 773

195

168

923

165

780 854 857 903 72 6 997 94 1 951

910 941 749 821 864 944 693

903 836 913 854 877 870 67 3

831 857 921 898 974 739 780 916 934 863 852 872 862 882 79 0

0011

0011

010 0 11 011 012 014 013 014 014

011 0089 0092 0083 0067 0087 0066

025 032 029 028 024 038 047 031 030 035 029 039 028 036 116 030 035 031 030 031 032 036 035

335

499

661 466

931

662

58 0

791

130 108 276 158 161 199 171 211

759 105 107 342 393 726 990

0028 0056 0040 0067 0036 0048 0049

0040 0042 0033 0035 0031 0026 0041 0069 0054 0048 0039 0024 0035 0046 0052

00152 00160 00151 00214

00164 00155 00130

00162 00155 00172 00150 00154 00146 00189

0 0151 00171 00177 00171 00171 00176 00252

00160 00164 00153 00177 00160 00201 00186 00170 00161 00180 00180 00176 00189 00201 00166

Round whitefish

SO 269 341 37 SO 344 307 79 SO 83 27857 SO 262 23251 SO 54 30200 SO 58 30388 SO 341 42558 SO 63 27312 SO 350 38241

SRF 205 18562 SRF 210 211 78 SRF 211 4981 SRF 217 16071 SRF 215 25968 SRF 213 12305

127 105 112 748 973 673 948

157 122

112 773

117 948

135

103 102 107 104 112 107 106 101 995

105 108 885

117 91 3 Ill

014 014 013 011 013 011 011 016 016

017 013 021 015 013 018

385 448 395 699 71 0 667 407 522

114

74 8 356 335 481

256

514 393 290 237 196 238 271 2 73 085

128 035 047 059 030 063

00119 00122 00125 00120 00122 00130 00123 00125 00116

00161 00154 00282 00172 00184 00171

14

Table 4 Contd _ _ -_ -- ~lt_ __ ~o __ ~ _~a~~~_=_~_ ~_-~= ~~a -+--Oo~=-_ z

Wet lit Sal11l le (g) Ca K Cu Zn Can ampRa K 137C5 t uKmiddot

~Molesg wet weight lMolesfCi -shy

Trout

SO 335 31993 299 885 0086 115 067 00155 SO 213 SO 79 SO 114

34359 24322 31086

122 249 898

714 941 708

OOOS 0086

0081

598tS09 t 345

032 067 034

00171 00165 00175

SO 335 31993 299 885 0095 066 SO 217 34175 102 683 0095 107 030 00161 SO 124 SO 125

26705 39245 145

499 754

0029 010 t177

033 049

00166 00164

SO 115 29276 783 009 051 00167

SRF 47 25535 824 015 011 00178 SRF 37 34456 703 0095 012 00165 SRF 40 27916 734 013 006 00212 SRF 73 24050 675 0004 0049 028 00172 SRF 28 311 99 655 0058 035 00161 SRF 100 36491 51 3 020 010 00155 SRF 25 24284 680 009 0089 00172 SRF 2 20136 982 011 0083 00173 SRF 93 SRF 88

22510 18386 374

882 941

010 011 t 0069

0045 00174 00163

SRF 96 277 83 831 013 0085 00171

Cisco

SO 35 13214 877 031 069 00206 SO 154 23430 887 013 127 00158 SO 50 12463 844 024 065 00066 SO 77 15243 921 025 076 00155 SO 343 23205 803 013 074 00139 SO 284 141 24 877 032 084 00151 SO 252 15038 934 034 120 00141 SO 324 10162 849 020 1 57 00088 SO 249 14040 588 570 036 857 160 00144 SO 25 24818 921 671 021 615 185 00151 SO 254 15583 105 908 029 478 096 00165 SO 279 16514 798 977 035 ~62 130 00155 SO 248 20211 936 021 093 00146 SO 85 14336 859 013 077 00152 SO 293 14458 905 023 102 00153 SO 294 14416 893 031 182 00142 SO 297 10748 887 032 134 00146 SO 306 22948 898 017 067 00145 SO 266 26717 885 018 107 00111 SO 321 13510 798 017 079 00165 SO 36 9441 744 018 062 00154 SO 303 23015 944 029 062 00155 SO 251 8817 811 014 011 00139 SO 283 21538 923 016 117 00140 SO 322 12771 890 030 017 00150 SO 158 22720 987 018 215 00124

RF 112 25723 844 474 014 481 192 00151 RF 118 RF 107 RF 104

25077 22360 19733

973 829 872 683

011 016 015

138 1O4t

t

00136 00139 00160

SRF 116 14256 524 964 0007 022 823 032 00186 SRF 118 14279 951 023 020 00148 SRF 136 12503 916 022 020 00191 SRF 124 20799 949 021 021 00130 SRF 105 22436 875 025 016 00146 SRF 114 21499 818 691 0006 034 011 00136 SRF 108 18472 982 022 0096 00141

15

Table 4 Contd =-t II~~ ~-

Wet Wt Sample (g) Ca K Cu Zn Ca 226 Ra K 13 7Cs 4o K

~Molesg wet weight ~MolesfCi -shy

SRF SRF SRF SRF SRF SRF SRF SRF SRF

112 126 109 115 111 101 133 125 120

18519 15072 109B2 14752 21113 161 85 115 33 16990 12219

474

49 9

104 864 903 89 8 862 934 79B 941 803

0 007

028 0 29 023 022 024 025 028 023 025

688

685

016 016 025 031 018 014 0055 011 014

00133 00167 00145 00158 00134 00134 00167 00162 00164

Longnose sucker

SO 354 311 27 SO 229 14922 SO 243 231 29 SO 236 22332 SO 149 284 03 SO 234 285 96

623 898 549 698 549

110

877 890 859 87 7 808 859

016 011 013 0 17 012 013

344 607 461 4B8 39B 677

191 148 215 313 279 955

0 0161 00164 00145 00128 00138 00093

Burbot

RF 202 RF 203 RF 226 RF 209 RF 210 RF 228 RF 216

23792 35791 39645 23931 41923 24477 35978

873

105

655 650 749 685 770 680 632

0004

016 0 14 0095 0070 0090 018 0070

513

385

436 309 095 381 145t

263

00139 00134 00145 00146 00147 00143 00158

Northern

SO 336

RF 154

SRF 401 SRF 402

~i ke

37690

39200

30116 39021 773

71 4

801

834 974

0003

011

014

014 017 930

061

1 67

013 016

00190

00148

00149 00126

lnconnu

RF 222 RF 223

44801 32311

73 8 885

011 010

315 221

00131 00141

Lake whi tefi sh

ELA3 5 20310 ELA3 6 261 54 ELA3 9 28815 ELA3 13 34572 ELAJ 14 15561 ELA3 15 111 69

852 867 951 40 2 808 703

0 20 0093 019 0 12 017 0 17

0060 0057 0052 0020 0076 0 10

00150 00160 00248 0 0301 00140 00140

Percent natural abundance of 40K is 0011B (Friedlander et al 1964)

t 226 Ra near or below detection limits

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

13 Table 4 Concentrations of calcium potassium copper and zinc ratios of Ca 22 6 Ra and K13 7CS and percent

abundance of 40K (100 4oKK) in fish samples from Great Slave Lake (SO = Snowdrift Christie Bay RF = Ft Resolution West Basin SRF = Ft Reliance McLeod Bay) Louis Lake (LL) and Lake 302S Expe ri men ta 1 Lakes A rea (ELA)

~~--~-=~-~=~~-

Wet Wt Ca 22 6RaSample (g) Ca K Cu Zn K1 37CS 40K

~Molesg wet weight -- ~MolesfCi - shy

Lake whitefi sh

SO 209 31915 SO 5 30996 SO 31 26717 SO 326 6988 SO 188 25960 SO 191 251 33 SO 29 26479 SO 78 30775

RF 91 24419 RF 64 237 91 RF 44 24931 RF 51 288 81 RF 81 16361 RF 70 27374 RF 37 29498

LL 3 23720 LL 300 13090 LL 6 17942 LL 310 26587 LL 7-A 16642 LL 7-B 20778 LL 23 2496 LL 5 18963 LL 9 23906 LL 18 19274 LL 22 21361 LL 10 218 83 LL 13 17181 LL 21 16017 LL 1 111 55 LL 19 17769 LL 16 17734 LL 11 16608 LL 2 17429 LL 4 21346 LL 14 191 60 LL 15 13669 LL 9 13652

449 623 623

773 698 773

195

168

923

165

780 854 857 903 72 6 997 94 1 951

910 941 749 821 864 944 693

903 836 913 854 877 870 67 3

831 857 921 898 974 739 780 916 934 863 852 872 862 882 79 0

0011

0011

010 0 11 011 012 014 013 014 014

011 0089 0092 0083 0067 0087 0066

025 032 029 028 024 038 047 031 030 035 029 039 028 036 116 030 035 031 030 031 032 036 035

335

499

661 466

931

662

58 0

791

130 108 276 158 161 199 171 211

759 105 107 342 393 726 990

0028 0056 0040 0067 0036 0048 0049

0040 0042 0033 0035 0031 0026 0041 0069 0054 0048 0039 0024 0035 0046 0052

00152 00160 00151 00214

00164 00155 00130

00162 00155 00172 00150 00154 00146 00189

0 0151 00171 00177 00171 00171 00176 00252

00160 00164 00153 00177 00160 00201 00186 00170 00161 00180 00180 00176 00189 00201 00166

Round whitefish

SO 269 341 37 SO 344 307 79 SO 83 27857 SO 262 23251 SO 54 30200 SO 58 30388 SO 341 42558 SO 63 27312 SO 350 38241

SRF 205 18562 SRF 210 211 78 SRF 211 4981 SRF 217 16071 SRF 215 25968 SRF 213 12305

127 105 112 748 973 673 948

157 122

112 773

117 948

135

103 102 107 104 112 107 106 101 995

105 108 885

117 91 3 Ill

014 014 013 011 013 011 011 016 016

017 013 021 015 013 018

385 448 395 699 71 0 667 407 522

114

74 8 356 335 481

256

514 393 290 237 196 238 271 2 73 085

128 035 047 059 030 063

00119 00122 00125 00120 00122 00130 00123 00125 00116

00161 00154 00282 00172 00184 00171

14

Table 4 Contd _ _ -_ -- ~lt_ __ ~o __ ~ _~a~~~_=_~_ ~_-~= ~~a -+--Oo~=-_ z

Wet lit Sal11l le (g) Ca K Cu Zn Can ampRa K 137C5 t uKmiddot

~Molesg wet weight lMolesfCi -shy

Trout

SO 335 31993 299 885 0086 115 067 00155 SO 213 SO 79 SO 114

34359 24322 31086

122 249 898

714 941 708

OOOS 0086

0081

598tS09 t 345

032 067 034

00171 00165 00175

SO 335 31993 299 885 0095 066 SO 217 34175 102 683 0095 107 030 00161 SO 124 SO 125

26705 39245 145

499 754

0029 010 t177

033 049

00166 00164

SO 115 29276 783 009 051 00167

SRF 47 25535 824 015 011 00178 SRF 37 34456 703 0095 012 00165 SRF 40 27916 734 013 006 00212 SRF 73 24050 675 0004 0049 028 00172 SRF 28 311 99 655 0058 035 00161 SRF 100 36491 51 3 020 010 00155 SRF 25 24284 680 009 0089 00172 SRF 2 20136 982 011 0083 00173 SRF 93 SRF 88

22510 18386 374

882 941

010 011 t 0069

0045 00174 00163

SRF 96 277 83 831 013 0085 00171

Cisco

SO 35 13214 877 031 069 00206 SO 154 23430 887 013 127 00158 SO 50 12463 844 024 065 00066 SO 77 15243 921 025 076 00155 SO 343 23205 803 013 074 00139 SO 284 141 24 877 032 084 00151 SO 252 15038 934 034 120 00141 SO 324 10162 849 020 1 57 00088 SO 249 14040 588 570 036 857 160 00144 SO 25 24818 921 671 021 615 185 00151 SO 254 15583 105 908 029 478 096 00165 SO 279 16514 798 977 035 ~62 130 00155 SO 248 20211 936 021 093 00146 SO 85 14336 859 013 077 00152 SO 293 14458 905 023 102 00153 SO 294 14416 893 031 182 00142 SO 297 10748 887 032 134 00146 SO 306 22948 898 017 067 00145 SO 266 26717 885 018 107 00111 SO 321 13510 798 017 079 00165 SO 36 9441 744 018 062 00154 SO 303 23015 944 029 062 00155 SO 251 8817 811 014 011 00139 SO 283 21538 923 016 117 00140 SO 322 12771 890 030 017 00150 SO 158 22720 987 018 215 00124

RF 112 25723 844 474 014 481 192 00151 RF 118 RF 107 RF 104

25077 22360 19733

973 829 872 683

011 016 015

138 1O4t

t

00136 00139 00160

SRF 116 14256 524 964 0007 022 823 032 00186 SRF 118 14279 951 023 020 00148 SRF 136 12503 916 022 020 00191 SRF 124 20799 949 021 021 00130 SRF 105 22436 875 025 016 00146 SRF 114 21499 818 691 0006 034 011 00136 SRF 108 18472 982 022 0096 00141

15

Table 4 Contd =-t II~~ ~-

Wet Wt Sample (g) Ca K Cu Zn Ca 226 Ra K 13 7Cs 4o K

~Molesg wet weight ~MolesfCi -shy

SRF SRF SRF SRF SRF SRF SRF SRF SRF

112 126 109 115 111 101 133 125 120

18519 15072 109B2 14752 21113 161 85 115 33 16990 12219

474

49 9

104 864 903 89 8 862 934 79B 941 803

0 007

028 0 29 023 022 024 025 028 023 025

688

685

016 016 025 031 018 014 0055 011 014

00133 00167 00145 00158 00134 00134 00167 00162 00164

Longnose sucker

SO 354 311 27 SO 229 14922 SO 243 231 29 SO 236 22332 SO 149 284 03 SO 234 285 96

623 898 549 698 549

110

877 890 859 87 7 808 859

016 011 013 0 17 012 013

344 607 461 4B8 39B 677

191 148 215 313 279 955

0 0161 00164 00145 00128 00138 00093

Burbot

RF 202 RF 203 RF 226 RF 209 RF 210 RF 228 RF 216

23792 35791 39645 23931 41923 24477 35978

873

105

655 650 749 685 770 680 632

0004

016 0 14 0095 0070 0090 018 0070

513

385

436 309 095 381 145t

263

00139 00134 00145 00146 00147 00143 00158

Northern

SO 336

RF 154

SRF 401 SRF 402

~i ke

37690

39200

30116 39021 773

71 4

801

834 974

0003

011

014

014 017 930

061

1 67

013 016

00190

00148

00149 00126

lnconnu

RF 222 RF 223

44801 32311

73 8 885

011 010

315 221

00131 00141

Lake whi tefi sh

ELA3 5 20310 ELA3 6 261 54 ELA3 9 28815 ELA3 13 34572 ELAJ 14 15561 ELA3 15 111 69

852 867 951 40 2 808 703

0 20 0093 019 0 12 017 0 17

0060 0057 0052 0020 0076 0 10

00150 00160 00248 0 0301 00140 00140

Percent natural abundance of 40K is 0011B (Friedlander et al 1964)

t 226 Ra near or below detection limits

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

14

Table 4 Contd _ _ -_ -- ~lt_ __ ~o __ ~ _~a~~~_=_~_ ~_-~= ~~a -+--Oo~=-_ z

Wet lit Sal11l le (g) Ca K Cu Zn Can ampRa K 137C5 t uKmiddot

~Molesg wet weight lMolesfCi -shy

Trout

SO 335 31993 299 885 0086 115 067 00155 SO 213 SO 79 SO 114

34359 24322 31086

122 249 898

714 941 708

OOOS 0086

0081

598tS09 t 345

032 067 034

00171 00165 00175

SO 335 31993 299 885 0095 066 SO 217 34175 102 683 0095 107 030 00161 SO 124 SO 125

26705 39245 145

499 754

0029 010 t177

033 049

00166 00164

SO 115 29276 783 009 051 00167

SRF 47 25535 824 015 011 00178 SRF 37 34456 703 0095 012 00165 SRF 40 27916 734 013 006 00212 SRF 73 24050 675 0004 0049 028 00172 SRF 28 311 99 655 0058 035 00161 SRF 100 36491 51 3 020 010 00155 SRF 25 24284 680 009 0089 00172 SRF 2 20136 982 011 0083 00173 SRF 93 SRF 88

22510 18386 374

882 941

010 011 t 0069

0045 00174 00163

SRF 96 277 83 831 013 0085 00171

Cisco

SO 35 13214 877 031 069 00206 SO 154 23430 887 013 127 00158 SO 50 12463 844 024 065 00066 SO 77 15243 921 025 076 00155 SO 343 23205 803 013 074 00139 SO 284 141 24 877 032 084 00151 SO 252 15038 934 034 120 00141 SO 324 10162 849 020 1 57 00088 SO 249 14040 588 570 036 857 160 00144 SO 25 24818 921 671 021 615 185 00151 SO 254 15583 105 908 029 478 096 00165 SO 279 16514 798 977 035 ~62 130 00155 SO 248 20211 936 021 093 00146 SO 85 14336 859 013 077 00152 SO 293 14458 905 023 102 00153 SO 294 14416 893 031 182 00142 SO 297 10748 887 032 134 00146 SO 306 22948 898 017 067 00145 SO 266 26717 885 018 107 00111 SO 321 13510 798 017 079 00165 SO 36 9441 744 018 062 00154 SO 303 23015 944 029 062 00155 SO 251 8817 811 014 011 00139 SO 283 21538 923 016 117 00140 SO 322 12771 890 030 017 00150 SO 158 22720 987 018 215 00124

RF 112 25723 844 474 014 481 192 00151 RF 118 RF 107 RF 104

25077 22360 19733

973 829 872 683

011 016 015

138 1O4t

t

00136 00139 00160

SRF 116 14256 524 964 0007 022 823 032 00186 SRF 118 14279 951 023 020 00148 SRF 136 12503 916 022 020 00191 SRF 124 20799 949 021 021 00130 SRF 105 22436 875 025 016 00146 SRF 114 21499 818 691 0006 034 011 00136 SRF 108 18472 982 022 0096 00141

15

Table 4 Contd =-t II~~ ~-

Wet Wt Sample (g) Ca K Cu Zn Ca 226 Ra K 13 7Cs 4o K

~Molesg wet weight ~MolesfCi -shy

SRF SRF SRF SRF SRF SRF SRF SRF SRF

112 126 109 115 111 101 133 125 120

18519 15072 109B2 14752 21113 161 85 115 33 16990 12219

474

49 9

104 864 903 89 8 862 934 79B 941 803

0 007

028 0 29 023 022 024 025 028 023 025

688

685

016 016 025 031 018 014 0055 011 014

00133 00167 00145 00158 00134 00134 00167 00162 00164

Longnose sucker

SO 354 311 27 SO 229 14922 SO 243 231 29 SO 236 22332 SO 149 284 03 SO 234 285 96

623 898 549 698 549

110

877 890 859 87 7 808 859

016 011 013 0 17 012 013

344 607 461 4B8 39B 677

191 148 215 313 279 955

0 0161 00164 00145 00128 00138 00093

Burbot

RF 202 RF 203 RF 226 RF 209 RF 210 RF 228 RF 216

23792 35791 39645 23931 41923 24477 35978

873

105

655 650 749 685 770 680 632

0004

016 0 14 0095 0070 0090 018 0070

513

385

436 309 095 381 145t

263

00139 00134 00145 00146 00147 00143 00158

Northern

SO 336

RF 154

SRF 401 SRF 402

~i ke

37690

39200

30116 39021 773

71 4

801

834 974

0003

011

014

014 017 930

061

1 67

013 016

00190

00148

00149 00126

lnconnu

RF 222 RF 223

44801 32311

73 8 885

011 010

315 221

00131 00141

Lake whi tefi sh

ELA3 5 20310 ELA3 6 261 54 ELA3 9 28815 ELA3 13 34572 ELAJ 14 15561 ELA3 15 111 69

852 867 951 40 2 808 703

0 20 0093 019 0 12 017 0 17

0060 0057 0052 0020 0076 0 10

00150 00160 00248 0 0301 00140 00140

Percent natural abundance of 40K is 0011B (Friedlander et al 1964)

t 226 Ra near or below detection limits

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

15

Table 4 Contd =-t II~~ ~-

Wet Wt Sample (g) Ca K Cu Zn Ca 226 Ra K 13 7Cs 4o K

~Molesg wet weight ~MolesfCi -shy

SRF SRF SRF SRF SRF SRF SRF SRF SRF

112 126 109 115 111 101 133 125 120

18519 15072 109B2 14752 21113 161 85 115 33 16990 12219

474

49 9

104 864 903 89 8 862 934 79B 941 803

0 007

028 0 29 023 022 024 025 028 023 025

688

685

016 016 025 031 018 014 0055 011 014

00133 00167 00145 00158 00134 00134 00167 00162 00164

Longnose sucker

SO 354 311 27 SO 229 14922 SO 243 231 29 SO 236 22332 SO 149 284 03 SO 234 285 96

623 898 549 698 549

110

877 890 859 87 7 808 859

016 011 013 0 17 012 013

344 607 461 4B8 39B 677

191 148 215 313 279 955

0 0161 00164 00145 00128 00138 00093

Burbot

RF 202 RF 203 RF 226 RF 209 RF 210 RF 228 RF 216

23792 35791 39645 23931 41923 24477 35978

873

105

655 650 749 685 770 680 632

0004

016 0 14 0095 0070 0090 018 0070

513

385

436 309 095 381 145t

263

00139 00134 00145 00146 00147 00143 00158

Northern

SO 336

RF 154

SRF 401 SRF 402

~i ke

37690

39200

30116 39021 773

71 4

801

834 974

0003

011

014

014 017 930

061

1 67

013 016

00190

00148

00149 00126

lnconnu

RF 222 RF 223

44801 32311

73 8 885

011 010

315 221

00131 00141

Lake whi tefi sh

ELA3 5 20310 ELA3 6 261 54 ELA3 9 28815 ELA3 13 34572 ELAJ 14 15561 ELA3 15 111 69

852 867 951 40 2 808 703

0 20 0093 019 0 12 017 0 17

0060 0057 0052 0020 0076 0 10

00150 00160 00248 0 0301 00140 00140

Percent natural abundance of 40K is 0011B (Friedlander et al 1964)

t 226 Ra near or below detection limits

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

Table 5 Means and one standard deviation for concentrations of calcium potassium copper and zinc in fish populations from Great Slave Lake Louis Lake and Lake 302S Experimental Lakes Area Means and standard deviations are from log-transformed data The number of fish analyzed is shown in brackets

----------- Ilmolesg Wet WeightLocation Species Ca K Cu Zn

1 Great Slave Lake

a) West Basin Lake wh i tefi sh 841 113 (9) 0084 121 (7) (Ft Resolution) Cisco B9 5 ~ 1 13 (2) 785 111 (4) 0122 135 (4)

Burbot 955 1 14 (2) 68B 1 OB (7) 00004 (1) 0109 147 (7)

b) Christie Bay Lake wnitefish 646 ~ 122 (6) 872 ~ 111 (8) 0119 115 (8)(Snowdri ft) Round whitefish 103 ~ 130 (9) 105 ~ 1 04 (9) 0131 ~ 117 (9)

Cisco 810 129 (4) 89 3 ~ 1 08 (26) 0214 ~ 140 (26) Longnose sucker 711 132 (6) 86 2 ~ 1 03 (6) 0135 ~ 116 (6) m

Trout 16 7 ~ 167 (7) 749 ~ 1 21 (9) 0080 151 (8)

c) McLeod -Bay Round whi tefi sh 105 1 24 (5) 103 ~ 112 (6) 0159 ~ 123 (6) (Ft Rel iance) Cisco 561 127 (4) 894 ~ 110 (16) 0007 ~ 113 (3) 0245 ~ 114 (16)

Trout 374 (1) 7B 8 ~ 1 15 (1l) 0004 (1) 0099 ~ 141 (11)

2 Louis Lake Sask Lake yenhi tefi sh 149 ~ 1 39 (4) 857 ~ 109 (22) 0011 101 (2) 0336 ~ 136 (23) amp N W T Border

3 Lake 302S ELA Lake whi tefi sh 73 7 ~ 137 (6) 0153 ~ 135 (6) Onto

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

Table 6 Activities of 137CS and 226 Ra in surface water samples from Great Slave Lake stations and ELA Lake 302S and Lake Winnipeg Particulate matter from the 160 L water sample was separated by continuous-flow centrifugation

Supended 137CS in Filtered 137CS in Suspended 226Ra in Lake amp Station Date Particulate Matter Water pCi m- 3 Particulate Matter Water pCi m- 3

mgL plusmn2a pCi m- 3 pCi g-1 dry l SD

Great Slave Lake

Ft Resolution (West Basin) Sept 1979 79 34 plusmn 20 86 plusmn 6 011 plusmn 07 59 plusmn 5

Snowdrift (Christie Bay) 14 12 plusmn 9 9 plusmn 7 76 plusmn 3 ---J51 plusmn 20

gt-

Ft Rel iance (McL eod Bay) 078 98 plusmn 20 90 plusmn 8 11 plusmn 9 21 plusmn 4

Lake 302S March 1980 037 668 plusmn 50 68 plusmn 6 19 plusmn 17 lOot

Lake Winnipeg North Basin 11 33 plusmn 19 NDf ND 43

The radium data given are averages of measurements of three different 55 L samples at each station The 2a counting error was much less than the differences between the replicate samples so 1 standard deviation of the triplicate sample is given

t Estimated from data from nearby lakes

t ND not detectable (~7 pCig)

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

10

18

J en Lshy

Lshya a w m ~ gt z

0001 ND 001 01 10

5

SNOWDRIFT 15 -ROUND WHITEFISH

0

5

FORT RELIANCE -CISCO

SNOWDRIFT -CISCO

5 FORT RESOLUTION

-CISCO

SNOWDRIFT - LAKE WHITEFISH

FORT RESOWTION -LAKE WHITEFISH

0001 ND 001 01

137CS (pCi g) 10 10

5

15

10

5

15 10

5

10

5

5

10

5

15 10

5

15 10

5

15

10

5

Figure 1 Frequency distribution of 137 CS within each pop~lation samp led

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

19

0001 ND 001 01 10 10 10 10

5

10

5

10

5

15

10

5

5 5I en Iamp

55LL 0

0 5 5 LaJ al ~ 5gt z

5

5

15

10

5

0001 ND 001 01 10 10

137CS (pCi g )

1 I I I I FORT RESCLUTION

5 - -INCONNU

LAKE WINNIPEG -SAUGER

SfJOWDRIFT 15 - -LONG NOSE SUCKER

10 -5 -

r- FORT RELIANCE

- - NORTtpoundRN PIKE

I I I I I I I I I I I I I 1

SNOWDRIFT _ - NORTHERN PIKE

FORT RESClLJTlON - -NORTHERN PIKE

SNOWDRIFT 5 - -BURBOT

-

~T RESOLUrION

-

r- ---- -

1---1

-

r----I

rf1--t 5 - rll--fl----

~

I

-BURSOT

FORT RELIANCE 5 - -TROUT -5

SNOWDRIFT (APRIL) 5 - -TROUT

SNOWDRIFT (SEPT) 15 - -TROUT

10--

I I I I

-

rn-fll- ~

-

r--r-I I I I I I I I

f-

~

~

I-

f0-

~

I-

-

-

-

---5

Figure 1 contd

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4

20

4

4

4

4

CISCO 8 -SNOWDRIFT

10

Ro ( fCig)

Figure 2 Frequency distribution of 226 Ra within each population sampled

I en u u o a w m ~ l Z

4

4

16

12

B

4

4

16

I~

8

4

4

4

4

8

4

2

4

4

8

4

B

4