Download - Paper Mahvash3
Age, growth, mortality and population structure of Spirilin Alburnoides cf
bipunctatus from northern Iran (Actinopterygii, Cypriniade)
1,2Mahvash Sefali *, 1,3Aziz Arshad , 4Siti Khlige Daud, 3Siti Shapor Siraj,
5Bahram Kiabi, 6Hamidreza Esmaeili and 1S.M. Nurul Amin
1 Laboratory of Marine Science and Aquaculture, Institute of Bioscience, Universiti Putra
Malaysia, 43400 UPM Serdang, Selangor, Malaysia
2Department of Biology, Faculty of Science, Universiti Alzahra,Tehran. Iran
3 Department of Agriculture ,Faculty of Agriculture, Universiti Putra Malaysia UPM 43400
Serdang, Selangor, Malaysia
4Department of Biology, Faculty of Science, Universiti Putra Malaysia UPM 43400 Serdang,
Selangor, Malaysia
5Department of Biology, Faculty of Science, Universiti Shahid Beheshti,Tehran. Iran
6Department of Biology, Faculty of Science, Universiti Shirz, Shiraz. Iran
*Corresponding author
Laboratory of Marine Science and Aquaculture
Institute of Bioscience
Universiti Putra Malaysia
43400 UPM Serdang
Selangor, Malaysia
Tel.: +60-4-2784807
H/P: +60-173268468
E-mail address: [email protected]
Age, growth, mortality and population structure of Spirilin Alburnoides cf
bipunctatus from northern Iran (Actinopterygii, Cypriniade)
ABSTRACT
The present study investigated age, growth and mortality of the Alburnoides bipunctatus by
regular monthly collection throughout one year from July 2008 to June 2009 in Kesselian
stream (the south Caspian Sea). Length frequency data were analysed using FiSAT software for
estimating population parameters. Asymptotic length (L ∞), growth coefficient (K) and growth
performance index Ø' were 104.48, 1.19 year-1 and 4.113 respectively. Total mortality (Z)
was estimated at 3.40 year -1, fishing mortality (F) at 2.43 year -1, and natural mortality (M) at
0.97 year -1. The exploitation rate (E) was 0.71. Mean temprature and salinity was 12.46 ºC,
ppt respectively . The exploitation level (E) 0.71 indicated that the fish stock was over
exploited in the Kesselian stream.
Keywords: Freshwater fishes, Cyprinidae, Alburnoides, population parameter, Iran
INTRUDUCTION
Iran belongs to the Eurasian land mass constituting a significant part of the Middle East both in
terms of geographic area and zoogeography. The country has been divided into nineteen major
drainage basins based on river systems (Coad 1995). Iran’s ichthyofauna contains both
Ethiopian and Oriental elements, although it is principally part of the Palaearctic Realm (Coad
1987).
Alburnoides bipunctatus (Bloch, 1782) has long been considered a complex species with a
number of subspecies found from France through Europe north of the Alps eastwards to the
Black, Caspian and Aral Sea basins (Berg 1949; Bogutskaya and Naseka 2004; Coad 2009).
Some of the subspecies were recently given a rank of species, A. ohridanus (Karaman, 1928)
and A. prespensis (Karaman, 1924) (Kottelat and Freyhof 2007). In Iran, it is widely distributed
and is found in the basins of the Caspian Sea, Lake Orumiyeh, Tedzhen River, Kavir, Namak
Lake, Esfahan (Zayandeh and Shur rivers), Tigris River, Persian Gulf drainage, and Kor River
(Coad 2009).The taxon in the Caspian Sea basin is often referred to a subspecies, A.
bipunctatus eichwaldii (De Filippi, 1863), by Bogustkaya (1997), although some authors
consider it to be a full species (Fricke et al. 2007).
For a long time the population of Alburnoides bipunctatus complex group from Iran have been
considered as one species. Recently Bogutskaya and Coad (2009) and Coad and Bogutskaya
(2009) described six new species from Iran: A. petrubanarescui (type locality Qasemlou Chay,
Orumiyeh Lake basin, Iran), A. namaki (type locality qanat at Taveh, Namak Lake basin,Iran),
A. nicolausi (type locality Simareh River in Karkheh River system, Tigris River drainage,Iran),
and A. idignensis (type locality Bid Sorkh River, Gav Masiab River system, Tigris River
drainage, Iran), A. eichwaldii (type drainage (Kura-Aras) and rivers of the Lenkoran’Province.
(Georgia, Turkey, Armenia and Azerbaijan) and Safid Rud (Iran), and Alburnoides qanati, sp.
n. is described from a qanat in the Pulvar River drainage of Fars Province in southern Iran. It
may be more isolated populations specially from south and east Caspian sea basin which the
status of them are being considered, so in this paper we named them as Alburnoides cf
bipunctatus.
Alburnoides cf bipunctatus is an important taxon for sport fishing , aquaculture and
zoogeography. Although a few reports exist on the taxonomic status of it, this species has not
yet been subjected to a comprehensive study. Virtually nothing is known about the population
structure of Alburnoides cf bipunctatus in river systems of the south Caspian Sea basin of
northern Iran. Caspian sea basin is located in the European area of the Eurasia and is one of the
most diverse freshwater ecosystems in Iran (Coad 1995).
As there are only limited number studies on the length-weight relationship for freshwater fish
species of Iran, and there were no studies that describe LWR of A. bipunctatus , therefore, a
biological investigation on Alburnoides cf bipunctatus was taken up. The aim of the present
study was to determine the length-weight relationship parameters of Alburnoides cf
bipunctatus. (the South Caspian Sea).
MATERIALS AND METHODES
The present study was carried out in Kesselian- Amirkola in the Mazandaran province (52°
59′,36° 13′ ).The Kesselian Stream is one of the major tributaries of the Talar River in
Mazandaran Province and an important Caspian Sea subarea (Fig. 1). Totally 1019 specimens
(Table 1)were captured using an electro shocker monthly between July 2008 and June 2009.
Fish specimens were preserved in 10% formalin solution and analyzed in the labratory.
Total length (TL) and standard length (SL) were measured to the nearest 0.05 mm, by using a
digimatic calliper. Total weight, were recorded by an electronic analytical balance (±0.01 gr).
Length-weight relationships are very useful for fisheries research because they: (a) allow the
conversion of growth-in-length equations to growth-in-weight for use in stock assessment
models; (b) allow the estimation of biomass from length observations; (c) allow an estimate of
the condition of the fish; and (d) are useful for between region comparisons of life histories of
certain species (Froese and Pauly, 1998). Length-Weight Relationship (LWR) is of great
importance in fishery assessments. Fish length-weight relationships, which describe
mathematically the correlation between fish length and weight, are useful for converting length
observations into weight estimates to provide some measure of biomass (Froese, 1998). Length
and weight measurements in conjunction with age data can give information on the stock
composition, age at maturity, life span, mortality, growth and production.
The relationship between the total length and total weight were determined by fitting the data to
a potential relationship in the form of W=aLb, where W is the weight in grams, L the total length
in milimeters, a and b are the parameters to be estimated, with b being the coefficient of
allometry (Pauly, 1984). A logarithmic transformation was used to make the relationship linear
(Bagenal and Tesch, 1978): Log w = log a+ b log L.
The condition factor (Kn) was calculated monthly by Kn=W/aLb (Biswas, 1993). The length-
frequency data were analyzed using the FiSAT (FAO-ICLARM Stock Assessment Tools)
software as explained in detail by (Gayanilo et al., 1996). To identify the modes in the
polymodeal length-frequency distributions of A. cf bipunctatus Bhatacharya, s method in the
package FiSAT was used. The length frequency data into groups with 4 mm length intervals
were pooled for each month. All identified size /age groups were derived from at least three
consecutive points and selection of the best results was based on the following criteria: (a)
values of the separation index (SI) for the different age groups; (b) number of identified age
groups and (c) standard deviation (SD) (Gayanilo et al., 1989).
Asymptotic length (L∞) and growth co-efficient (K) of the von Bertalanffy equation for growth
in length were estimated by means of ELEFAN-I (Pauly and David, 1981; Saeger and Gayanilo,
1986). Growth was investigated by fitting the von Bertalanffy growth function to length
frequency data. The von Bertalanffy growth equation is defined as follows (Sparre and Venema,
1998): Lt=L∞ [(1-exp (-K (t-t0))] ,with L∞ being the predicted asymptotic length, Lt the size at
age t, k the instantaneous growth coefficient, and to the point at which the von Bertalanffy curve
intersects the age axis. t0 was estimated by employing the equation of Pauly (1980):
Log t0 = -0.3922 - 0.2752 Log L∞ - 1.038 Log K
Phi prime (Ø'), or “growth performance index,” was used to study overall growth performance
relates k and L∞ for organisms that grow according to the VBGF in the following way
Ø' = log10k + 2log10L∞ . In the present study, Ø' was calculated. The total mortality rate (Z) was
estimated by using length converted catch curve analysis. Natural mortality (M) was calculated
using the equation of Pauly (1980)
Log10M=-0.0066-0.279Log10Lµ+0.6543Log10K+ 0.4634Log10T
where M is the natural mortality, L∞ the asymptotic length, K the growth co-efficient of the
VBGF and T the mean annual habitat water temperature (C). which incorporates water
temperature and the VBGF growth parameters L∞ and K. The annual mean water temperature
for the study was 12.46 ºC. The instantaneous fishing mortality (F) was taken as the difference
between total and natural mortality: F=Z-M. where Z is the total mortality and M, natural
mortality. The exploitation level (E) was obtained from E = F ⁄ Z = F ⁄ (F + M).
The recruitment pattern was obtained by projecting the length-frequency data backwards on the
time axis using growth parameters (Moreau and Cuende, 1991). Normal distribution of the
recruitment pattern was determined by NORMSEP (Pauly and Caddy, 1985) in FiSAT. Relative
yield per recruit (Y ⁄ R) and biomass per recruit (B ⁄ R) were estimated according to the model
of Beverton and Holt (1957) using the knife-edge selection.In order to study the population
structure, the length-frequency data were analyzed by using the SPSS Version 17 and FiSAT
packeage (Gayanilo et al., 1996).
RESULTS
Total number of individuals collected for this study was 1019. The mean total lengths were
67.68 ( 12.31) mm (Table 2, 3). Monthly size frequency distributions are given in (Fig. 2).
Length-weight relationships
The length- weight relationship is presented in Fig. 3. The regression between TL (total length)
and TW (total weight) showed positive relationship. The length-weight relationship equations
were established as: Log W = -5.2081 + 3.1221 Log L; in exponential from the equation is w=
0.000006 L3.1221 with Co-efficient of correlation r2 = 0.9581 (p<0.001) which indicates the
relationship was highly significant. Growth coefficient (b) was 3.1221 and condition factor (a)
was computed 0.000006.
Size frequency distribution
To study size frequency distribution were measured 1019 A. cf bipunctatus. Montly size
frequency distribution showed maximum three age group,with mean ? mm? mm? mm TL, in
the population .(Fig. 4.). Recruitment took place in???
Growth parameters
The length-frequency data were entered into the FISAT and the extreme value theory was
applied to find out the maximum length (L∞ ) from extreme values. The observed extreme
length was 99.50 mm and the computer predicted extreme length was 102.82 mm (Figure 5).
Extreme length range was 96.55 – 109.09 mm at 95% confidence interval level. Assymptotic
length (Lµ) was 104.48 mm and growth co-efficient was (K) = 1.19/yr. The calculated growth
performance index Ø' was 104.48 (Figure 6).
To assess the fit of growth parameters, ELEFAN(Electronic length frequency analysis) first
restructures the length distribution. This restructuring, using a ‘moving average frequency’
(Pauly, 1987), denotes peaks (above the moving average) and troughs (below the moving
average) in the distribution. Peaks receive a positive value, while troughs are assigned a
negative value. A growth curve is then derived, based on a selected set of L∞ and K values, and
compared to the restructured length distribution. That growth curve is then scored by summing
the restructured values for each length class the growth curve passes through (‘explained sum of
peaks’; ESP). Hence, it is a function of the proportion of available peaks hit and troughs
avoided by that curve. The ‘available sum of peaks’ (ASP) for the distribution represents the
maximum score which could be obtained by a single growth curve, being the sum of maximum
restructured values for each peak. The ratio ESP/ASP is then maximised by varying the growth
parameter set, to identify the best fitting growth parameters(Fig.7).
Age and growth
Maximum life span (tmax = 3/K) was years.The aapplication of modal progression
analysis by Bhattachary’s method were identified maximum three modal group. The modal
length of A. cf bipunctatus was between 38.53 mm in April and 96.60 mm in September, with
satisfactory sepration index (Table 2).
Mortality and exploitation
By using length –converted catch curve total mortality was estimated as 3.44 year -1 (Fig. 8).
Natural mortality (M) and fishing mortality (F) were calculated as 0.97 year -1and 2.43 year -1
respectively (Table 3). Exploitation level (E) was obtained 0.71 for A. cf bipunctatus. The
value of explotation was over than the expected optimum level (E=0.05).
Virtual Population Analysis (VPA)
Length structured VPA indicated that fishing started after 31.5 mm length of A. cf
bipunctatus There were two peaks of fishing mortality , First peak was between 61.5 and 71.5
mm length , Second peak was between 81.5 and 91.5 mm length
Recruitment pattern
Recruitment pattern of A. cf bipunctatus was continuous in the year.There were two major peak
recruitment. First peak occurred in April- May and The second peak observed in September-
October (Fig. 9).
.
DISCUSSION
Length–weight relationships have been reported for some commercially important
marine and freshwater fishes of Iran (Hosseini, 2002; Naddafi et al., 2002), but data for most
freshwater fis species were still missing. As spirlin today does little economic interest, studies
on biology of this taxon, including information on population structure of the Alburnoides in
Iranian waters are lacking. Thus information on growth is needed to develop population for the
conservation and management strategies of Alburnoides stocks. There are no published reports
on A. cf bipunctatus and this report is the first data on the population structure of A. cf
bipunctatus in Iran.
The comparison of growth parameters of A. cf bipunctatus in this study (Assymptotic length
(Lµ) was 104.48 mm and growth co-efficient was (K) = 1.19/yr, with other studies (Table 4)
show that, Differences exit for varous species of family Cyprinidae from Iran.
Length-frequency distributions and scale readings were used to distinguish age-classes
(maximum age: 5+). The Von Bertalanffy growth equation was L(t)=182.1(1-e.0331(t - 0.474)).
(Breitenstein and Kirchhofer, 2000).
The back calculated growth in the total length could be expressed by the following formula: Lt = 12.0 (1-e-0.59(t+0.14)). The phi-prime of spirlin from the Sava river is φ′=4.44. The length-weight relationship, covering the fish from the entire growing period, showed an isometric growth with a b-value of 3.025 (p>0.05), except of September when it was significantly allometric (Tree etal.,2006) Tne valueso f the regressionc o-efficient' b' obtainedf or the malesa nd femalesfrom SeberangT akir were3 .005a nd3 .012,w hereasth e valuesf rom PantaiR hu Mudawere 3.089 and 3.147,r espectivelyI.n all cases,t he exponentb lies in betweent heexpectedr angeo f 2.5-3.5r eportedf or most fish and shrimps( Carlander1 977: Le Cren19 51 ) andi s closesto 3 (Table2 ) in boths exesin dicatingt hatg rowtho f A. inter nrcdiusis isometric.rate.R ecruitnrenpta tternso f tiref ish revealedthat it recruits in the fishery almostthroughoutth e yccr '
The comparison with growth parameters obtained in otherstudies show differences in P. viridis from the different areasin the world (Table 2). The highest value of L∞ (184.60 mm)is from India waters (Narasimham, 1981) and the lowest value(89.4 mm) is in Malaysia (Choo and Speiser, 1979). The highest(2.14 year−1) and lowest (0.25 year−1) value of K is observed inIndia waters (Narasimham, 1981). It is observed that the presentL∝ value (102.38 mm) of P. viridis from Malaysia coastal watersis very close to Thailand and Hong Kong (Table 2) but K valueis not similar with other countries except for India.The growth coefficient b generally lies between 2.5 and 3.5and the relation is said to be isometric when it is equal to 3(Carlander, 1977). In the present case, estimated b (2.602) liesbetween the values mentioned by Carlander (1977) and significantlysmaller then isometric value (3) at 5% level. Table 3summarizes previously published values of the coefficients “a”and “b” for Perna. The values of “b” show considerable variation,ranging from 2.37 (Lee, 1985) to 2.86 (Narasimham,1981). The exponent “b” of the size–weight relationship inP. viridis is generally different from 3 as shown in Table 3.This might partly be explained through the influence of ecologicalfactors such as mussel density, shore level, etc. Suchecological differences were demonstrated by Hickman (1979)who compared wild stocks and raft-grown populations of Pernacanaliculus.The overall average growth rate of P. viridis showed 6.95(±2.01) mm/month which enable it to attain a total length ofaround 76.49mm in 11 months. This indicates that culture of P.viridis could be a successful industry in the area due to its bettergrowth rate than that is usually obtained for other bivalve species(Mendo and Jurado, 1993). Similar studies have been reportedby Amin et al. (2001b), Amin and Zafar (2004) and Blaber etal. (1998) on fish species through length converted age methodwhich also been followed in this study.
Higher natural mortality (1.69 year−1) observed than fishingmortality (0.79 year−1) of P. viridis seen in the present studyindicates the unbalanced position in the stock. The lower value ofE (E = 0.32) indicates the ‘under-fishing’ condition of P. viridisin the study area. According to Gulland (1965), the yield isoptimized when F =M; therefore, when E is more than 0.5, thestock is over-fished.The recruitment pattern suggests that annual recruitment consistof one seasonal pulse (Fig. 8), i.e. one cohort is producedper year and the highest peak occurs in July–August. There is nopublished report on recruitment of P. viridis in Malaysia. However,it has been reported that the P. viridis spawn mainly duringSeptember–December from east coast of India (Rajagopal etal., 1998). In the present study, it is observed that the majorspawning occurs in the months of January–February in thestudy area (Fig. 2). The major recruitment peak (July–August)detected in this study should correspond to the major spawningseason.5. ConclusionFrom the present study, it could be concluded that the stock ofthe green mussel shows the potential for exploitation in Sebatucoast of Malacca. More exploitation is possible and could be anoption for the livelihood of the coastal communities of the area.AcknowledgementsThe authors would like to express their sincere gratitude toMalaysian Technical Cooperation Program (MTCP) for financialsupport of the study. In addition, thanks go to Mr. KhyrulAmri for the assistance during field sampling. We sincerelyextend our thankful appreciation to the two anonymous reviewersof the manuscript for the valuable comments and constructivecriticisms.ReferencesAmin, S.M.N., Haroon, A.K.Y., Alam, M., 2001a. A study on the populationdynamics of Labeo rohita (Ham.) in the Sylhet basin, Bangladesh. Indian J.Fish. 48, 291–296.Amin, S.M.N., Rahman, M.A., Haldar, G.C., Mazid, M.A., 2001b. Studies onage and growth and exploitation level of Tenualosa ilisha in the coastalregion of Chittagong, Bangladesh. J. Inland Fish. Soc. India 33, 1–5.Amin, S.M.N., Rahman, M.A., Haldar, G.C., Mazid, M.A., Milton, D., 2002.Population dynamics and stock assessment of Hilsa shad, Tenualosa ilishain Bangladesh. Asian Fish. Sci. 15, 123–128.Amin, S.M.N., Zafar, M., 2004. Studies on age, growth and virtual populationanalysis of Coilia dussumieri from the neritic water of Bangladesh. J. Biol.Sci. 4, 342–344.Angell, C.L., 1986. The biology and culture of tropical oysters. ICLARM Stud.Rev. 12, 37.Benson, A.J., Marelli, D.C., Frischer, M.E., Danforth, J.M.,Williams, J.D., 2001.Establishment of the green mussel, Perna viridis (Linnaeus 1758) (Mollusca:Mytilidae) on the west coast of Florida. J. Shellfish Res. 20, 21–29.Blaber, S.J.M., Staunton-Smith, J., Milton, D.A., Fry, G., Velde, T.V., Pang,J., Wong, P., Boon-Teck, O., 1998. The biology and life-history strategies
REFERENCES
Abdoli, A., 2000: The inland water fishes of Iran. Iranian Museum of Nature and Wildlife,
Tehran,pp. 378 (in Farsi, English abstract).
Bagenal, T.B.,Tesch, F.W., 1978: Age and growth in-methods of assessment of fish production
in fresh waters, Ed. Bagenal, T.Oxford Blackwell Scientific Publication. pp.101-136.
Berg, L.S., 1949: Freshwater fi shes of the U.S.S.R. and adjacent countries, part. 2. Izd.
Akad.Nauk SSSR, Moskva- Leningrad, 469-925. [In Russian; translation: Israel
Program for Scientifi c Translations, Jerusalem, 1965].
Beyer ,J.E., 1987: On length-weight relationship. Part 1. Corresponding the mean weight of a
given length class. Fishbytes 5(1): 11 – 13.
Bolger, T., Connoly,P.L., 1989: The selection of suitable indices for the measurement and
analysis of fish condition. J. Fish Biol. 34: 171 –182.
Bogutskaya, N.G., 1988: Canal topography of the seismosensory system of cyprinids of the
subfamilies Leuciscinae, Xenocyprininae and Cultrinae. Voprosy Ikhtiologii, 28:
367-382 [in Russian; translated in Journal of Ichthyology, 28(4): 91-107]
Alburnoides qanati from southern Iran 77
Bogutskaya, N. G., 1997: Contribution to the knowledge of leuciscine fi shes of Asia Minor.
Part 2. An annotated checklist of leuciscine fi shes (Leuciscinae, Cyprinidae) of Turkey
with descriptions of a new species and two new subspecies. Mitteilungen aus dem
Hamburgischen Zoologischen Museum und Institut 94: 161-186
Bogutskaya, N. G., Naseka, A.M., 2004: Catalogue of agnathans and fi shes of fresh and
brackish waters of Russia with comments on nomenclature and taxonomy. KMK
Scientifi c Press Ltd., Moscow, 389 pp. [In Russian].
Bogutskaya, N. G., Coad, B. W., 2009: A review of vertebral and fi n-ray counts in the genus
Alburnoides (Teleostei: Cyprinidae) with a description of six new species.
Zoosystematica Rossica, 18(1).
Breitenstein, M. E. , Kirchhofer, A., 2000., Growth, age structure and species association of the
cyprinid Alburnoides bipunctatus in the River Aare, Switzerland. Folia Zoology,
Volume 49, Issue 1; 59-68
Coad, B. W., 1995: Freshwater fishes of Iran. Acta Sc. Nat. Brno. 29: 1–64.
Coad , B. W., 1996: Fishes from the qanats of Iran. Publicaciones Especiales Instituto Espanol
de Oceanografía 21: 63-79.
Coad, B. W., 2009: Freshwater fi shes of Iran. Revised 05 June 2008.
http://www.briancoad.com/Contents.htm [accessed 5 April 2009]
Esmaeili, H. R., Ebrahimi, M., 2006: Length–weight relationships of some freshwater fishes of
Iran.J. Appl. Ichthyol. 22 : 328–329
Diaz, L. S., Roa, A., Garcia, C.B., Acero A., Navas G., 2000: Length-weight relationships of
demersal fishes from the upper continental slope off Colombia. The ICLARM
Quarterly 23(3): 23-25.
Fricke, R., Bilecenoglu, M., Musa Sari, H., 2007: Annotated checklist of fi sh and lamprey
species (Gnathostomata and Petromyzontomorphi) of Turkey, including a Red List
of threatened and declining species. Stuttgarter Beitrge zur Naturkunde,
Serie A (Biologie) 706: 1-174.
Pauly, D., 1983: Some simple methods for the assessment of tropical fish stocks. FAO.
Fisheries Techn. Pap. (234) FAO, Rome.
Pauly, D., Gayanilo, F. C., 1997: An alternative approach to estimating the parameters of a
length-weight relationship from lengthfrequency samples and their bulk weights.
NAGA ICLARM, Manila,Philippines.
Froese, R., Binohlan, C., 2003: Simple methods to obtain preliminary growth estimates for
fishes. Journal of Applied Ichthyology . `9(6), 376-379.
Pilling, G. M., Mees, C. C., Barry, C., Kirkwood, G., Nicholson, S., & Branch, T., 1999:
Growth parameter estimates and the effect of fishing on size-composition and growth
of snappers and emperors: implications for management.Final Technical Report.
London SW7 2QA: MRAG Ltd -47 Princes Gate.
Treer, T., Piria, M., Anicic, I., Safner, R., Tomljanovic, T; 2006; Diet and growth of spirlin,
Alburnoides bipunctatus in the barbel zone of the Sava River.Folia Zoology,
Volume 55, Issue 1, 97-106
Yildrim, A., Orhan ERDOÚAN, M., RKMEN, T., 1999: The Investigation of Some
Reproduction Characteristics of The Alburnoides bipunctatus fasciatis (Nordman,
1840) Living in Oltu Stream, .oruh Basin, Tr. J. of Veterinary and Animal Sciences
23 Ek SayÝ 4, 679-686
Legends of the figures
Fig. 1. Map of the 19 major drainage basins of Iran (the lake Mahãrlu basin lies between the
Gulfs and Kor basins) (Coad, 1995), and sampling location of kesselian (dat) in the south of
Caspian Sea in Iran.
Fig. 2. Annual size frequency distribution of A. bipunctatus from the kesselian stream,
Mazandaran Province, Iran.
Fig. 3. Length weight relationship of A. cf bipunctatusin the Kesselian stream, Mazandaran
province, Iran.
Fig. 4. Monthly length size distribution of A. cf bipunctatusin the Kesselian stream,
Mazandaran province, Iran.
Fig. 5. Predicted extreme length of A. cf bipunctatus in the Kesselian stream, Mazandaran
province, Iran.
Fig. 6. Estimation of K of A. cf bipunctatus in the Kesselian stream, Mazandaran province,
Iran.
Fig. 7. Von Bertalanffy growth curves (L∞ = 104.48 mm and K = 1.19 year-1) superimposed on
the restructured length-frequency histograms. The black and white bars are positive and
negative deviation from the weighted.
Fig. 8. Length-Converted Catch Curve of A. cf bipunctatus dots ( points used in calculating
through least square linear regression. Open dots = point either not fully recruited or nearing
L∞).
Fig. 9. Recruitment pattern of A. cf bipunctatus in the Kesselian stream, Mazandaran
province, Iran.
Fig. 10. Relative yield per recruit (Y/R) and biomass per recruit (B/R) of A. cf bipunctatus
in the Kesselian stream , Mazandaran province, Iran.
Fig. 11. Length structured VPA A. cf bipunctatus in the Kesselian stream , Mazandaran
province, Iran.
Legends of the tables
Fig. 1. Map of the 19 major drainage basins of Iran (the lake Mahãrlu basin lies between the
Gulfs and Kor basins) (Coad, 1995), and sampling location of kesselian (dat) in the south of
Caspian Sea in Iran.
Fig. 2. Annual size frequency distribution of A. bipunctatus from the kesselian stream,
Mazandaran Province, Iran.
Fig. 3. Length weight relationship of A. cf bipunctatusin the Kesselian stream,
Mazandaran province, Iran
Fig. 4. Monthly length size distribution of A. cf bipunctatusin the Kesselian stream ,
Mazandaran province, Iran
Fig. 5. Predicted extreme length of A. cf bipunctatus in the Kesselian stream ,
Mazandaran province, Iran.
Fig. 6. Estimation of K of A. cf bipunctatus in the Kesselian stream ,
Mazandaran province, Iran.
Fig. 7. Von Bertalanffy growth curves (L∞ = 104.48 mm and K = 1.19 year-1) superimposed on
the restructured length-frequency histograms. The black and white bars are positive and negative
deviation from the weighted
Fig. 8. Length-Converted Catch Curve of A. cf bipunctatus dots
( points used in calculating through least square linear regression.
Open dots = point either not fully recruited or nearing L∞)
Fig. 9. Recruitment pattern of A. cf bipunctatus in the Kesselian stream,
Mazandaran province, Iran.
Relative yield per recruit and biomass per recruit
Fig. 10. Relative yield per recruit (Y/R) and biomass per recruit (B/R) of A. cf bipunctatus
in the Kesselian stream , Mazandaran province, Iran.
Fig. 11. Length structured VPA A. cf bipunctatus
in the Kesselian stream , Mazandaran province, Iran.
Table 1. Montly pooled length frequency of Alburnoides cf bipunctatus from Kesselian
stream Mazandaran province, Iran
Mid
Length
15/7/0
8
15/8/0
8
15/9/0
8
15/10/0
8
15/11/0
8
15/12/0
8
15/1/0
9
15/2/0
9
15/3/0
9
15/4/0
9
15/5/0
9
15/6/0
9
31.5 1
35.5 3 1 1
39.5 4 1 9 2 5
43.5 2 17 2 1 6 4 3
47.5 1 8 4 1 4 25 5 10 15 11 9
51.5 14 2 5 11 24 16 12 19 10 9 1
55.5 19 6 3 15 19 11 15 13 15 5 2
59.5 11 17 1 8 17 32 22 15 12 9 9 2
63.5 7 15 7 6 19 16 13 18 13 8 13 3
67.5 2 6 5 7 20 13 19 14 9 9 16
71.5 1 6 6 7 10 5 9 10 3 2 16
75.5 3 5 3 3 4 11 11 9 2 1 5
79.5 1 2 2 3 2 6 2 5 1
83.5 2 1 4 1 1 1 1 3
87.5 1 1 1 1 1 8
91.5 1 1 1 8
95.5 1 4
99.5 1 3
Total 60 77 36 39 105 182 116 108 95 75 91 35
Table 2. Identified age groups from length-frequency analysis of A.cf bipunctatuc during
12 months sampling (July 2008 to June 2009), using Bhattacharya’s method
Months Mean TL (mm)of age groups
SD (mm) n SI
July 55.51 3.17 45 -80.17 5.40 6 5.75
August 38.53 4.23 10 -61.04 4.69 46 5.0573.65 3.12 12 3.23
September 53.50 8.47 9 -71.27 6.48 16 2.3896.60 11.17 3 2.87
October 66.69 8.46 37 -November 61.50 7.55 100 -December 49.75 5.37 95 -
66.06 6.34 98 2.7983.81 2.24 7 4.14
January 57.89 6.32 67 -75.21 3.79 27 3.4385.38 3,08 8 2.69
Febuary 63.50 7.94 107 -March 51.16 5.59 55 -
64.50 4.27 37 2.71April 41.01 2.95 10 -
55.27 4.18 34 470.03 2.04 29 4.75
May 50.31 4.36 26 -67.79 4.28 64 4.0579.94 2.03 11 3.85
June 57.50 4.80 5 -89.68 5.02 24 6.55
TL, total length; SD, standard deviation; SI, separation index; n, no.individuals.
Table 2- Descriptive of total length of Alburnoides bipunctatus from Kesselian stream
Mazandaran province Iran
Months N Mean Sd. Minimum Maximum
July, 08 60 65.14 8.81 52.10 92.29
Aug. 08 77 65.47 12.47 34.23 94.29
Sept, 08 36 73.42 12.97 51.87 102.80
Oct, 08 39 74.17 10.03 53.94 110.00
Nov, 08 105 68.94 8.83 43.18 95.09
Dec, 08 182 63.59 12.82 40.27 112.31
Jan, 09 116 70.05 10.10 47.35 97.16
Feb, 09 108 68.73 10.16 48.01 102.20
Mar, 09 95 62.72 9.52 43.17 92.12
Apr, 09 75 61.46 9.42 41.06 85.19
May, 09 91 69.65 10.90 46.62 92.55
Table 3- Descriptive of total weight of Alburnoides cf bipunctatus from Kesselian stream
Mazandaran province , Iran
Months N Mean Sd. Minimum Maximum
July, 08 60 3.1 1.53 1.39 8.72
Aug. 08 77 3.28 1.66 .51 8.81
Sept, 08 36 4.9 2.98 .1.53 14.27
Oct, 08 39 4.63 2.22 .1.68 13.70
Nov, 08 105 3.34 1.39 .88 7.56
Dec, 08 182 3.07 2.15 .63 15.33
Jan, 09 116 3.67 1.81 1.02 10.56
Feb, 09 108 3.51 1.78 1.15 13.29
Mar, 09 95 2.77 1.52 .81 10.59
Apr, 09 75 2.67 1.33 .63 7.51
May, 09 91 4.02 1.90 1.10 9.22
July, 08 35 10.34 4.41 2.04 16.72
Table 4 - Population parameters of A. cf bipunctatus in the Kesselian stream ,
Mazandaran province, Iran.
Population parameters Both sex of A. cf bipunctatus
Asymptotic length (Lµ) mm 104.46
Growth co-efficient (K) 1.19
Natural mortality (M) 0.97
Fishing mortality (F) 2.43
Total mortality (Z) 3.40
Exploitation level (E) o.71
Length range 31-11
Sample number 1019
Table 5. Parameters of the length-weight relationship for fish species from Iran
Family Species Length
rang (cm)
a b r Source
Cyprinidae Pseudorasbora parva
Temminck and Schlegelin
(1846)
4.58 -7.50 0.0098 3.010 0.938 Esmaeil
2006
Cyprinidae Cyprinion tenuiradius
Heckel, 1846
5.71-
14.21
0.0075 3.190 0.988 Esmaeil
2006
Cyprinidae Cyprinion watsoni (Day,
1872
8.34-
13.38
0.0101 2.952 0.993 Esmaeil
2006
Cyprinidae Barbus luteus (Heckel, 1843) 4.10-
21.10
0.0098 3.159 0.997 Esmaeil
2006
Cyprinidae Chalcalburnus mossulensis
(Heckel, 1843)
4.08-
10.52
0.0078 3.020 0.992 Esmaeil
2006
Cyprinidae Garra rufa (Heckel, 1843) 2.90-
13.00
0.0119 3.139 0.992 Esmaeil
2006
Cyprinidae Leuciscus persidis (Coad,
1981)
5.04-9.72 0.0076 3.391 0.988 Esmaeil
2006
Cyprinidae Capoeta damascina
(Valenciennes, 1842)
6.58-
24.90
0.0124 2.996 0.996 Esmaeil
2006
Cyprinidae Carrassius auratus 7.32- 0.0149 3.047 0.953 Esmaeil
(Linnaeus, 1758) 10.58 2006
Cyprinidae Rutilus frisii kutum Fl 9.1-
29.9
0.0107 3.055 0.97 Bandpeia
&
etal.2008
Cyprinidae Capoeta capoeta capoeta
Gueldenstaedt, 1772
M74- -
179
F 69-225
0.0107 M 3.052
, F
3.050
0.954 Abdoli,
&
etal.2000
36 48 60 72 84 96 108 120
Total Length mm
0
30
60
90
120
150
180
210
240
270
Fre
qu
en
cy