41==-, a111111912,,1i1 fisheries statistical bulletin ... · fisheries statistical bulletin kainji...

ISSN: 1119-1449

Nigerian-German Kainji Lake Fisheries Promotion Project

Technical Report Series 9.

CEEMENIEL

Nigerian-German (GTZ)Kainji Lake FisheriesPromotion Project

$110.;..k_

%1410.

March, 1998

FISHERIES STATISTICAL BULLETINKAINJI LAKE, NORTHERN NIGERIA, ( 37

ISSN: 1119-1449

Nigerian-German Kainji Lake Fisheries Promotion Project


FISHERIES STATISTICAL BULLETINKAINJI LAKE, NORTHERN NIGERIA, `i997

CEEMENEL%-77,,v7,ttaliz.,


March, 1998

$110.;..k_

%1410.

41==-, _A111111912,,...1i1

ISBN 978-037-008-0© Nigerian-German (GTZ) Kainji Lake Fisheries Promotion Project

New BussaNiger StateNigeria

ISBN 978-037-008-0© Nigerian-German (GTZ) Kainji Lake Fisheries Promotion Project

New BussaNiger StateNigeria

FISHERIES STATISTICAL BULLETINKAINJI LAKE, NORTHERN NIGERIA, 1997


March, 1998

ISSN: 1119-1449

Nigerian-German Kainj ake Fisheries Promotion Project


FISHERIES STATISTICAL BULLETINKAINJI LAKE, NORTHERN NIGERIA, 1997


March, 1998

ISSN: 1119-1449

Nigerian-German Kainj ake Fisheries Promotion Project


FOREWORD

The Kainji Lake Fisheries Statistical Bulletin is published annually by the Nigerian- German (GTZ)Kainji Lake Fisheries Promotion Project. The bulletin presents summary tables and charts on levelsof fishing activity, fishing effort, yields and economic values of yields for the Lake fishery. Framesurvey data and fishing gear measurements are also included.

Data of fishing localities and units of effort are compiled from the annual frame surveyof Kainji Lake which takes place during November each year. Yield information is taken fl'om theproject's monthly catch and effort sampling which is extrapolated to the a.nnual frame survey data.Data on mesh size distribution per net type and other net characteristics (for example, headlinelength and depth) are obtained from the annual fishing gear survey conducted by the project.

Prior to the project statistical data on the Lake fisheries were available between 1969 to 1978.Mier this period regular collection of statistical data ceased. There was, therefore, a lack of currentinformation -which the project could utilise to formulate an appropriate management plan for thefishery.

Since it's inception, the Project set about to address this problem by instituting various surveyscovering the aspects of the fishery geared towards its management and development. Between 1993and 1997 these activities have generated a large volume of data. This has been analysed and asummary of the results are contained within this bulletin.

It is anticipated that the bulletin will be useful to Government Officers, researchers, academics andprospective fisherfolk.

A map of the Lake, locations of the boundaries used, a list of commercial Lake species andgeographical and hydrological information are also included.

For bibliographic purposes any data reproduced from this bulletin should be cited as follows:

Fisheries Statistical Bulletin, Kainjil Lake, Northern Nigeria, 1997.Nigerian- German (GTZ) Kainji Lake Fisheries Promotion ProjectTechnical Report Series 9. ISSSN 1119-1449. ISBN 978-037-008-0

Fisheries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Pa.ge 2

FOREWORD

The Kainji Lake Fisheries Statistical Bulletin is published annually by the Nigerian- German (GTZ)Kainji Lake Fisheries Promotion Project. The bulletin presents summary tables and charts on levelsof fishing activity, fishing effort, yields and economic values of yields for the Lake fishery. Framesurvey data and fishing gear measurements are also included.

Data of fishing localities and units of effort are compiled from the annual frame surveyof Kainji Lake which takes place during November each year. Yield information is taken from theproject's monthly catch and effort sampling which is extrapolated to the annual fratne survey data.Data on mesh size distribution per net type and other net characteristics (for example, headlinelength and depth) are obtained from the annual fishing gear survey conducted by the project.

Prior to the project statistical data on the Lake fisheries were available between 1969 to 1978.Afler this period regular collection of statistical data ceased. There was, therefore, a lack of currentinformation -which the project could utilise to formulate an appropriate management plan for thefishery.

Since it's inception, the Project set about to address this problem by instituting various surveyscovering the aspects of the fishery geared towards its management and development. Between 1993and 1997 these activities have generated a large volume of data. This has been analysed and asummai-y of the results are contained -within this bulletin.

It is anticipated that the bulletin will be useful to Government Officers, researchers, academics andprospective fisherfolk.

A map of the Lake, locations of the boundaries used, a list of commercial Lake species andgeographical and hydrological information are also included.

For bibliographic purposes any data reproduced from this bulletin should be cited as follows:

Fisheries Statistical Bulletin, Kainji Lake, Northern Nigeria, 1997.Nigerian- German (GTZ) Kainji Lake Fisheries Promotion ProjectTechnical Report Series 9. ISSSN 1119-1449. ISBN 978-037-008-0

Fisheries Statistical Bulletin, Kaillii Lake, Nigeria. 1997 Pa.ge 2

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The Location of the Main and Sub Strata Kain'i Lake

Stratum 3

Strattun 2

Sub Stratum 03

Stratum 1

Sub Stratum 01

NGKLITIP Tech. ItepSeries IS 1119- 1449

Sub Strattun 06

Fisheries .5tatistical Bulletin, Kainji Lake, Nigeria. 1997 Page 4

The Location of the Main and Sub Strata, Kain¡i Lake

Stratum 3

Stratum 2

Stratum 1

110.100.211.0613.

Sub Stratum 01

NGKLITP Tech. ItekSeries ISSN: 1119- 1449

Sub Stratum 06

Fisheries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 4

NGKLIPP Tech. Rep. Series ISSft 1119- 1449

The Length of Shoreline (Km and Percent of the Total) for the States and Sub-Strata Bordering Kainji Lake.

Note: The shoreline length is measured from a satellite image, including all estuaries and bays.

Fi,s-heries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 5

Area Boundary villages Length of shoreline(km)

Shoreline as apercent of total

StateNiger Pasatulu- Tunga Sambo 568 65

Kebbi Lariyawa-Toro 306 35

Sub Strata01 Maijaka-Bakin dam 2 152 17

02 Kaya-T.Gyama 105 1203 T.Zuma-T.Mairakumi 216 2504 T.A Audu Gungu- 33 4

T.A.Maidukia05 T.A.Jeda-Yuri Sabuwa 81

06 T.Danbature-Goshin 85 10Dutse

07 Pasatulu-Chanson 71 8

Maikudinka08 Gungun Masu-Toro 131 15

Total 874 100

NGKLIPI) Tech. Rep. Series ISSN: 1119- 1449

The Length of Shoreline (Km and Percent of the Total) for the States and Sub-Strata Borderinji Lake.

Note: The shoreline length is measured from a satellite image, including all estuaries and bays.

Fi,s-heries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 5

Area Boundary villages Length of shoreline(km)

Shoreline as apercent of total

StateNiger Pasatulu- Tunga Sarnbo 568 65

Kebbi Lariyawa-Toro 306 35

Sub Strata01 Maijaka-Bakin dam 2 152 17

02 Kaya-T.Gyama 105 1203 T.Zuma-T.Mairakumi 216 2504 T.A Audu Gungu- 33 4

T.A.Maidukia05 T.A.Jeda-Yuri Sabuwa 81

06 T.Danbature-Goshin 85 10Dutse

07 Pasatulu-Chanson 71 8

Maikudinka08 Gungun Masu-Toro 131 15

Total 874 100

Geographical Data for Kainji Lake

Date of formation: 1968Max. length: 134 kinMax. width: 24.1 kmDepth: 60m. (Max.), 11m (Mean)Surface area: 1,270 km2Volume: 13.97 km3Annual fluctuation in water level: 10-11 m.Catchment area: 1.6 x 106 km2

The Annual Lake Level (Meters above Sea Level) and Monthly Rainfall (mm)for Kainji Lake

140.0

138.0 -

136.0 -

134.0 -

132.0 -

130.0 -

128.0

List of A uatic Ve etation Kainji Lake

Plant speciesEichhomia crassipes, Water hyacinthEchnochloa stagnina, Niger grassPolygonium segalensisCyperus rotundus

% cover high water15.92*

% cover low water1.96*

* 1997 percent cover of Lake surface area

NGKLFIT Tech. Rep. &ties ISSN: 1119- 1449

Source: Vanden Bossehe, J.P. &

Bernacsek, G.M. Source book for

the inland fishery resources of Africa:

2. CIFA Tech. Paper. No. 18.2.

Rome. FAO

350.0

300.0

250.0

200.0

150.0

100.0

50.0

0.0

Monthly lake level (1997 data, NEPA, Kainji Dam)

n Monthly rainfall (1997 data, N)FFR)


JF MAMJ J A S 0 N D

Month

Geographical Data for Kainji Lake

Date of formation: 1968Max. length: 134 kmMax. width: 24.1 kmDepth: 60m. (Max.), 11m (Mean)Surface area: 1,270 km2Volume: 13.97 km3Annual fluctuation in water level: 10-11 m.Catchment area: 1.6 x 106 km2

The Annual Lake Level (Meters above Sea Level) and Monthly Rainfall (mm)for Kainji Lake

EE

151.

o

140.0

138.0 -

136.0 -

134.0 -

132.0 -

130.0 -

128.0

List of Aquatic Vegetation, Kainji Lake

Plant speciesEichhomia crassipes, Water hyacinthEchnochloa stagnina, Niger grassPolygonfurn segalensisCype rus rotundus

% cover high water15.92*

% cover low water1.96*

* 1997 percent cover of Lake surface area

NGKLFIT Tech. Rep. Series ISSN: 1119- 1449

Source: Vanden Bossehe, J.P. &

Bernacsek, G.M. Source book for

the inland fishery resources of Africa:

2. CIFA Tech. Paper. No. 18.2.

Rome. FAO

350.0

300.0

250.0"al 41>

>CU

200.0CU

>CU 0

150.0 c

100.0 a.)

50.0

0.0

Monthly lake level (1997 data, NEPA, Kainji Dam)

n Monthly rainfall (1997 data, NIFFR)

Fis-heries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 6

J F M A M J J A S 0 N D

Month

Checklist of the Commercially Exploited Fish Species in Kainji Lake

Scientific NameSierratlirissa leonensisPelonula afzeliusi

Citharinu.s' citharusC'itharimis distichodttsDistichodus rOStratusDistichodus auratus

A lestes baremoseAlestes den texAlestes nurseA lestes macrolepiditusHydrocymis forskhalii

Laheo pseuclocouhieLabeo coubieLabeo senegalensi.s.

Saro th erod on galilaeusOreochromis niloticusTilapia zilli

Synodontis membranaceous,Synodontis budgettiSynodontis ocellifer,Synodontis hatensoda,SynodontisSynodolliiS resupinatus,SYnodonti,s gambiensis

Auchenoglannis occidentalisBagrus docniacBagrus hayadChysichthys 17igrodigitatusCliysichthys auratusClaro/es laticeps

lieterobranchus bidorsalisClaria,s a/Tr/MarlsClarias gariepinus

Alarniyrus runteMormyrus macropthalanius

Scheilbe nu's:MsEutropius niloticus

Phi sail/ia pelltickla

Lates niloticusGynniarchus niloticuslieteroilS17l101iCla

Fisheries Statistical Bulletin,

Hausa NaniteWarangiWaranga, Toga rana

FaliaZoru, KirajoChiciyawa, Gambu,Chiciyawa, Gambit, Chiliaki

Shemani, MazaniShemani, MazaniJam, Wutsiya, Kuclundu, RajiaKakara, Auto, 13argaTsege, Tsage, Danriri zawai

Dubi, Data, Maida, Bakin,Dubi, Maidar, DataDuman; Dubi, Farin dununi, Data

Garagaza, Karfasa, Bugu, FalgaGaragaza, Karfasa, Bugu, Falga

Bulundi, Kurungu, FolasheKurungu, Mai kayatalaKurtingu, Kurungun kuraFarin, Kurungu, Kunguuna folasheJabar ruwa, Karaya, Kut-unguKunnign, FolasheKiatera, Kurungu

Buro, Kunkurna, DunkuruubDinico, ShambamiDoza, Ragon ruwaWarushe, Marushe, Durukulli,TanduWarushe, Marushe, Durukulii,TanduMaigo, Bunsum

Ramboshe, Mari, FussanTarwada, Hana noma

Miligi, Idon

Balo, Harya, Nalanga

Rampari, Balo, Mai gaishi

Giwan mwanYauri, Zawo, SalbaliBahli, Begigi, Dan shakata

Kailiji Lake, Nigeria, 1997

NGKLFPP Tech. Rep. Series ISSN: 1119- 1449

FamilyChipeidaeClupeidae

CitharinidacCitliarinidaeOtharinidaeCithariiiidae

CbaracidaeCharacidaeCharacidaeCharaeidaeCharacidae

CyprinidaeCyprinidaeCyprinidae

CichlidaeCichlidaeCiehlidae

MochokidaeMocbokidaeMochokidaeMochokida.eMochokidaeMochokidaeMochokiclae

BagridaeBagridaeBagridaeBagridaeBagridaeBagridae

ClaridaeClariclaeClaridae

MormyridaeMonnyridae

ScheibeidaeScheibeidae

Scheibeidae

CentropomidaeGymnarchidaeOsteoglossidae

Page 7

Checklist of the Commercially Exploited Fish Species in Kainii Lake

Scientific NameSierrathrissa leonensisPelonula afzeliusi

CitharinlIS citharusCitharmus distichodttsDistichodus rostratusDistichodus auratus

Alestes baremoseAlestes den (exAlestes nurseA lestes macrolepiditusHydrocynus forskhalti

Labeo pseudocoubieLobeo coubieLabeo senegalensis-

,S'arotherodonOre0C171'0171i5 niloticus

Tilapia zilli

Synodontis membranaceousSynodontis budgettiSynodontis ocellifer,Synodontis ha/casadaSynoclontis schallSp 7 0 CIO IliiS l'eSifpillUiliS

Synodontis gambiensis

Auchenoglannis occidentalisBagres do011acBagrus boyadChysichthys nigrodigitatusChysichthys auratusClaro/es laticeps

Ileterobranchus bidorsalisClaria,s anguillarisClctrias gariepinus

tl/forittyrus runicltionnyrus macropthalantus

Scheilbe mystusEutropius niloticus

Physaillta pellticicict

Lates niloticusGymnarchus niloticusIleterotis IlliOliCUS

Fisheries Statistical Bulletin,

Hausa .NaniteWarangiWaranga, Taga rana

FaliaZoru, KirajoChiciyawa, Gainbu CbibakiChiciyawa, Garnbu,

MazaniShernani, MazaniJam, Wutsiya, Kudundu, RajiaKakara, Anto, I3argaTsege, Tsage, Danriri zawai

Dubi, Data, Maida, Bakin, DununiDubi, Maidar, DataDuman, Dubi, Farin dununi, Data

Garagaza, Karfasa, Bugu, FalgaGaragaza, Karfasa, Bugu, Pulga

Bulundi, Kurungu, FolasheKurungu, Mai kayatalaKurungu, Kurungun kuraParia, Kurungu, Kunguuna folasheJabar ruwa, Karaya, KurunguKurungu, FolasheKiatera, Kurungu

Buro, Kunkunia, DunkuruubDinko, SbainbanilDoza, Ragon ruwaWanishe, Marushe, Durukulli,TanduWaruslie, Marushe, Durukulii,TanduMaigo, Bunsuru

Rainbosite, Mari, FussanKuluni, Tarwada, Hana noma

Miligi, Idon

Balo, Harya, Nalanga

Rainpari, Balo, Mai gaishi

Giwan rowanYauri, Zawo, SalbaliBahli, Begigi, Dan shakata

Kainji Lake, Nigeria. 1997

NGKLFPP Tecb. Rep. Series ISSN: I I 9- 1449

FamilyCittpeidaeClupeidae

CititarinidacCitharinidaeOtharinidaeCitharitlidae

CharacidaeCharacidaeCharacidaeCharaeidaeCharacidae

CyprinidaeCyprinidaeCyprinidae

CichlidaeCichlidaeCichlidae

MochokidaeMochokidaeMochokidaeMochokida.eMochokidaeMochokidaeMochokiciae

BagridaeBagridaeBagridaeBagridaeBagridaeBagridae

ClaridaeClariclaeClaridae

MormyridaeMormyridae

ScheibeidaeScheibeidae

Scheibeidae

CentropcnuidaeGymnarchidaeOsteoglossidae

Page 7


OVERVIEW OF THE LAKE FISHERY

The Types of Fisheries SurveysSince 1993, annual frame surveys have been conducted by the Nigerian-German (GTZ) Kainji LakeFisheries Promotion Project (NGKLFPP) to determine the distribution and number of fishinglocalities, fisherfolk, fishing canoes and fishing gears around Kainji Lake. The results of thesesurveys are used to implement the gear based catch and effort sampling program from whichmonthly estimates of fishing effort and fish catch are derived. Changes in fishing gearcharacteristics such as mesh size, headline length and depth have been monitored through the catchassessment and annual gear surveys, conducted since 1994,

Fishing LocalitiesA total number of 309 fishing localities were recorded in 1997 giving a 8% increase from the 1996frame survey. Since 1993 there has been a steady increase in the number of fishing localities in allthe sub strata. The exception was in 1994 when a high water level was recorded causing temporaryfishing camps to be abandoned.

The highest number of fishing localities occurred in the eastern part of the Lake, especially in thesouth and north where the terrain is suitable for settlement and fishing activities. Niger State hadmore fishing localities (63%) than Kebbi State (37%), which may be attributed to its longershoreline. Kebbi State had more permanent fishing camps than Niger, particularly at Foge Island.Where they existed the temporaity fishing camps were evenly distributed between the sub strata .

FisherfolksThere was an increase in the number of fishing entrepreneurs and fishing assistants over the years.A total number of 5,772 fishing entrepreneurs and 7,136 fishing assistants were recorded during the1997 frame survey. From 1994 there was a decrease in the number of shoreline fisherfolk and anincrease in the number of fishing entrepreneurs per km shoreline from 4.4 to 6.6.

The number of fisherwornen is hard to quantify due to their poor accessibility in the villages,generally attributed to their cultural and religious practises. Although more likely higher, 335fisherwomen were recorded in 1997. The women recorded entirely used gill nets with an average of1.6 nets, 0.5 canoes and 1 assistant each.

Fishing Canoes and EnginesThe total number of fishing canoes decreased from 9,278 in 1996 to 7,623 in 1997. The south andnorth of the Lake had increases in canoe number whilst the highest concentration occurred at thewestern side of the central Lake basin. Despite the increase in the total number of canoes theaverage number per entrepreneur has consistently decreased from 1.9 to 1.3 for the past 4 years,

There was a decrease in the number of transport canoes, whilst since 1993 the number of enginesremained the same.

Fisheries Statistical Bulletin, Kainji Lake, Nigeria 997 Page 8


OVERVIEW OF ME LAKE FISHERY

The Types of Fisheries SurveysSince 1993, annual frame surveys have been conducted by the Nigerian-Germa.n (GTZ) Kainji LakeFisheries Promotion Project (NGKLFPP) to determine the distribution and number of fishinglocalities, fisherfolk, fishing canoes and fishing gears around Kainji Lake. The results of thesesurveys are used to implement the gear based catch and effort sampling program from whichmonthly estimates of fishing effort and fish catch are derived. Changes in fishing gearcharacteristics such as mesh size, headline length and depth have been monitored through the catchassessment and annual gear surveys, conducted since 1994.

Fishing LocalitiesA total number of 309 fishing localities were recorded in 1997 giving a 8% increase from the 1996fi-ame survey. Since 1993 there has been a steady increase in the number of fishing localities in allthe sub strata. The exception was in 1994 when a high water level was recorded causing temporaryfishing camps to be abandoned.

The highest number of fishing localities occurred in the eastern part of the Lake, especially in thesouth and north where the terrain is suitable for settlement and fishing activities. Niger State hadmore fishing localities (63%) than Kebbi State (37%), which may be attributed to its longershoreline. Kebbi State had more permanent fishing camps than Niger, particularly at Foge Island.Where they existed the temporaty fishing camps were evenly distributed between the sub strata .

FisherfolksThere was an increase in the number of fishing entrepreneurs and fishing assistants over the years.A total number of 5,772 fishing entrepreneurs and 7,136 fishing assistants were recorded during the1997 frame survey. From 1994 there was a decrease in the number of shoreline fisherfolk and anincrease in the number of fishing entrepreneurs per km shoreline from 4.4 to 6.6.

The number of fisherwornen is hard to quantify due to their poor accessibility in the villages,generally attributed to their cultural and religious practises. Although more likely higher, 335fisherwomen were recorded in 1997. The women recorded entirely used gill nets with an average of1.6 nets, 0.5 canoes and 1 assistant each.

Fishing Canoes and EnginesThe total number of fishing canoes dect eased from 9,278 in 1996 to 7,623 in 1997. The south andnorth of the Lake had increases in canoe number whilst the highest concentration occurred at thewestern side of the central Lake basin Despite the increase in the total number of canoes theaverage number per entrepreneur has consistently decreased from 1.9 to 1.3 foi the past 4 years

There was a decrease in the number of transport canoes, whilst since 1993 the number of enginesremained the same.

Fisheries Statistical Bulletin, Kainji Lake, Nigeria 997 Page 8

NC3J<I,FP1) Tech. Rep, Series ISSN: 1119- 1449

Fishing GearsDuring the 1997 fratne survey, a total number of 12,566 gill nets, 1,004 drift nets, 582 beach seines,3,703 cast nets, 7,996 longlines and 32,711 traps were recorded. The concentration of the gears(number per km shoreline) was highest at the western side of the central and northern basins of theLake.

Despite the increasing numbers of gears on the Lake, of concern was the decline recorded for allthe fishing methods in the number of gears owned by individual entrepreneurs. This was veryprominent in the gill net and longline fisheries. These two fisheries have the lowest daily catchvalues and coupled with the problem of gear theft on the Lake, ovvnership in future may fall further.

The number of larger fishing units (those entrepreneurs with a large number of gears) also declinedas did the number of gears new entrants entered the fishery with. The decline was particularlyworrying for the beach seine fishery where diversification into other fishin,g methods would bebeneficial in light of the present ban on beach seines.

The group of not active' fishing entrepreneurs (those who do not themselves participate in fishingactivities) had the highest crwnership of gears whilst the new entrants into the fishery had thelowest. There was evidence that these new entrants into th.e fishery were using cast nets which isworrying given the trend of using smaller mesh sizes of this gear.

Contravention of Fisheries RegulationsA total of 47% of gill nets, 71% drift nets, 100% beach seines and 26% cast nets recorded duting1997 were illegal (according to the Niger ancl Kebbi State Fisheries Edicts, 1996). Fencing offportions of the dra-w down area of the Lake and cutting of aquatic weeds to clear sites for beachseining occur and are of concern. These violations could pose a serious danger to the sustainedpi oductivity of the fish stocks.

Fishing Net CharacteristicsThe annual mean mesh size recorded from the CAS has remained stable. The average mesh size ingill nets and drift nets was lower than the minimum allowable size whilst it was above in cast nets.There has been a steady decline in the headline lengths in gill nets, drift nets and beach seine netswhilst the cast nets have increased in size. Except for 1995, for both gill nets and beach seines,there was a gradual decline in average depth of the net.

Annual Fish Yield and Effort Estimates by Gear TypeThe total estimated yield for the fishery was 28,753 Mt. during 1997, a decrease of 25% from38,246 Mt. tecorded in 1996.

The reason for the decline during 1997 is attributed to the variable yield from the beach seineswhich targeted the clupeid resource of the lake. The beach seine fishery expanded rapidly during1996 contributing 53 % to the total lake yield and the decline in catch from 20,334 Mt. to 11,327Mt. (39% of the total lake yield) in 1997 is of serious concern.

The associated high by-catch from beach seines, which were juveniles or immature stages of themajor commercial species of the lake is also of concern.

Fisheries Statistical Bulletin, Kaihji Lake, Nigeria. 1997 Page 9

NGKI,FP1) Tech. Rep, Series 1SSN 1 I 19- 1449

Fishing GearsDuring the 1997 frame survey, a total number of 12,566 gill nets, 1,004 drift nets, 582 beach seines,3,703 cast nets, 7,996 longlines and 32,711 traps were recorded. The concentration of the gears(number per km shoreline) was highest at the western side of the central and northern basins of theLake.

Despite the increasing numbers of gears on the Lake, of concern was the decline recorded for allthe fishing methods in the number of gears owned by individual entrepreneurs. This was veryprominent in the gill net and longline fisheries. These two fisheries have the lowest daily catchvalues and coupled vvith the problem of gear theft on the Lake, ownership in future inay fall further.

The number of larger fishing units (those entrepreneurs with a large number of gears) also declinedas did the number of gears new entrants entered the fishery with. The decline was particularlyworrying for the beach seine fishery where diversification into other fishing methods would bebeneficial in light of the present ban on beach seines.

The group of not active' fishing entrepreneurs (those who do not themselves participate in fishingactivities) liad the highest olivnership of gears whilst the new entrants into the fishery had thelowest. There was evidence that these new entrants into th.e fishely were using cast nets which isworrying given the trend of using smaller mesh sizes of this gear.

Contravention of Fisheries RegulationsA total of 47% of gill nets, 71% drift nets, 100% beach seines and 26% cast nets recorded duting1997 were illegal (according to the Niger and Kebbi State Fisheries Edicts, 1996). Fencing offportions of the draw down area of the Lake and cutting of aquatic weeds to clear sites for beachseining occur and are of concern These violations could pose a serious danger to the sustainedptoductivity of the fish stocks.

Fishing Net CharacteristicsThe annual mean mesh size recorded from the CAS has remained stable. The average mesh size ingill nets and drift nets was lower than the minimum allowable size whilst it was above in cast nets.There has been a steady decline in the headline lengths in gill nets, drift nets and beach seine netswhilst the cast nets have increased in size. Except for 1995, for both gill nets and beach seines,there was a gradual decline in average depth of the net.

Annual Fish Yield and Effort Estimates by Gear TypeThe total estimated yield for the fishery was 28,753 Mt. during 1997, a decrease of 25% from38,246 Mt. tecorded in 1996.

The reason for the decline during 1997 is attributed to the variable yield from the beach seineswhich targeted the clupeid resource of the lake. The beach seine fishery expanded rapidly during1996 contributing 53 % to the total lake yield and the decline in catch from 20,334 Mt. to 11,327Mt. (39% of the total lake yield) in 1997 is of serious concern.

The associated high by-catch from beach seines, which were juveniles or immature stages of themajor commercial species of the lake is also of concern.

Fisheries Statistical Bulletin, Kaihji Lake, Nigeria. 1997 Page

The yield from the traditional gill net fishery, the second most important gear in terms of yield,remained constant from 1996 to 1997. Of concern, however, was the decline in catch ¡'ates of the 2inch to 4.5 inch meshed nets. The rise in small meshed gill nets (particularly 1 inch) is of concern.

l'he cast net fisheiy yield remained constant despite more nets operating on the lake. The cpuedeclined slightly from 1995 to 1997. Cast nets were the second most destructive gear in use on thelake and were responsible for high catches of undersized Citharitms ciiharys and Plapia sp.

In terms of yield the drift net fishery was the forth most important fishery present on the lake. Theannual contribution of drift nets declined from 11% in 1994 to 6% in 1997. During this time theyield fell by 57% to 1,653 Mt., despite a rise in the number of nets operating. Of grave concern isthe fall of the monthly catch per unit effort by 56% from 1995 to 1997.

The longline fishery experienced a decline in the total number of lines but had a stable cpue duringthe past 3 years. The longline was the most non-selective gear for small fish size in use on the lakeand targeted species not represented in the catches from other gears. The longline fishery should beencouraged to grow.

The trap fishery contributed 12% of yield in 1997 and has shown increasing yields andincreasing numbers of traps owned by fishermen during the last three years. The trap fisherytargeted small sized tilapiines and Citharima -which ultimately decreased the catches from gill nets.The Clariidae were also targeted at small size by cast nets reducing the future catches of thelongline fishery.

There were about 40 commercially exploited fish species on the lake, belonging to 14 families.Clupeids accounted for 31% of the total lake yield in 1997. The remaining percentage showed alarge mix of species of which Citharitms citharus contributed 11%, tilapiines 11% , Synadanti,smembranacemis 11% and Chysichtl2ys 8%. The remaining 15 fish taxon sampled contributedbelow 5%.

Citharitms and Synodotitis have a large fecundity and have withstood enormous fishing pressure.The fisheries using undersized meshed nets have mainly targeted the juveniles and immature stagesof these species. Small sized fish are mainly caught on the lake and this poses enormous pressure tothe tilapiine stocks -which, once diminished, would be almost impossible to revive given the currentsmall meshed gear configuration used and the low fecundity of the tilapiine species.

Economic Value of Fish Yield by Gear TypeThe gross income from the take fishery was Naira 845,647,0001 and was higher in 1997 than 1995.In 1997 the gill net fishery contributed 34% to the total catch value, followed by the beach seinefishery (23%). The cast net and trap fishery contributed 13% whilst the longline and drift netfisheries both contfibuted 9% of the total catch value for the lake.

I Exchange rate: USD 1 Naira 87

NGKLEPP Tech. Rep. Series ISSN: 1119- 1449

Fisheries Statistical Bulletin, Kainp Lake, Nigeria. 1997 Page 10I Exchange rate: USD 1 Naira 87

NGKLEPP Tech. Rm, SefiCS ISSN: 1119- 1449

The yield from the traditional gill net fishery, the second most important gear in terms of yield,remained constant from 1996 to 1997. Of concern, however, was the decline in catch rates of the 2inch to 4.5 inch meshed nets. The rise in small meshed gill nets (particularly 1 inch) is of concern.

The cast net fishery yield remained constant despite more nets operating on the lake. The cpuedeclined slightly from 1995 to 1997. Cast nets were the second most destructive gear in use on thelake and were responsible for high catches of undersized Citharimis ciiharys and Mapia sp.

In. terms of yield the drift net fishery was the forth most important fishery present on the lake. Theannual contribution of drift nets declined from 11% in 1994 to 6% in 1997. During this time theyield fell by 57% to 1,653 Mt., despite a rise in the number of nets operating. Of grave concern isthe fall of the monthly catch per unit effort by 56% from 1995 to 1997.

The longline fishery experienced a decline in the total number of lines but had a stable cpue duringthe past 3 years. The longline was the most non-selective gear for small fish size in use on the lakeand targeted species not represented in the catches from other gears. The longline fishery should beencouraged to grow.

The trap fishery contributed 12% of yield in 1997 and has shown increasing yields andincreasing numbers of traps owned by fishermen during the last three years. The trap fisherytargeted small sized tilapiines and Citharima -which ultimately decreased the catches from gill nets.The Clariidae were also targeted at small size by cast nets reducing the future catches of thelongline fishery.

There were about 40 commercially exploited fish species on the lake, belonging to 14 families.Clupeids accounted for 31% of the total lake yield in 1997. The remaining percentage showed alarge mix of species of which Citharimis citharus contributed 11%, tilapiines 11% , Synoclonasmembranaceolis 11% and Chysichtl2ys 8%. The remaining 15 fish taxon sampled contributedbelow 5%.

CithaTimis and Synodontis have a large fecundity and have withstood enormous fishing pressure.The fisheries using undersized meshed nets have mainly targeted the juveniles and immature stagesof these species. Small sized fish are mainly caught on the lake and this poses enormous pressure tothe tilapiine stocks Whiell, once diminished, would be almost impossible to revive given the currentsmall meshed gear configuration used and the low fecundity of the tilapiine species.

Economic Value of Fish Yield by Gear TypeThe gross income from the take fishery was Naira 845,647,0001 and was higher in 1997 than 1995.In 1997 the gill net fishery contributed 34% to the total catch value, followed by the beach seinefishery (23%). The cast net and trap fishery contributed 13% whilst the longline and drift netfisheries both contributed 9% of the total catch value for the lake.

Fisheries Statistical Bulletin, Kainfi Lake, Nigeria. 1997 Page 10


Fisheries Management implementation StrategyIt is clear that incidences of illegal fishing, in contravention of the fisheries regulations, abound onthe lake. These include the continuous use of beach seines and fishing with mesh sizes below theminimum stipulated sizes for gill nets, cast nets, drift nets and traps. The violations are of seriousconcern to the Kainji Lake Fisheries Management and Conservation Unit' which is charged withthe management of the fish resource. The problem, as indicated, is multi-faceted and should beapproached in a systematic fashion. In this direction, the project will focus mainly on the followingactivities:

to arrest the increase in the number of beach seines on the Lake and if possible reduce thenumber.

to stop the practice of fish fencing and grass cutting.

to arrest the increased use of 1 inch meshed gill nets and if possible reduce the number.

to arrest the increased use of 1 and 1.5 inch cast nets and if possible reduce the number.

to arrest the increased use of fishing traps.

For the effective long term monitoring of the fishery it is paramount that the catch assessment andframe surveys continue far beyond the expected life span of the project.

Fisheries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 11-


Fisheries Management implementation StrategyIt is clear that incidences of illegal fishing, in contravention of the fisheries regulations, abound onthe lake. These include the continuous use of beach seines and fishing with mesh sizes below theminimum stipulated sizes for gill nets, cast nets, drift nets and traps. The violations are of seriousconcern to the Kainji Lake Fisheries Management and Conservation Unit' which is charged withthe management of the fish resource. The problem, as indicated, is multi-faceted and should beapproached in a systematic fashion. In this direction, the project will focus mainly on the followingactivities:

to arrest the increase in the nuinber of beach seines on the Lake and if possible reduce thenumber.

to stop the practice of fish fencing and grass cutting.

to arrest the increased use of 1 inch meshed gill nets and if possible reduce the number.

to arrest the increased use of 1 and 1.5 inch cast nets and if possible reduce the number.

to arrest the increased use of fishing traps.

For the effective long term monitoring of the fishery it is paramount that the catch assessment andframe surveys continue far beyond the expected life span of the project.

Fisheries S'tatistical Bulletin, Kainji Lake, Nigeria, 1997 Page 11-

TABLE OF CONTE:NTS

NGKITP13 Tech. Rep. Series ISSN: 1119- 1449

Fisheries Statistical 13ztlletin, Kainji Lake, Nigeria. 1997 Page 12

SECTION 1. FISHING LOCALITIES AND TYPES 13

1.1. WHOLE LAKE 13

1.2. BY STATE 13-

SECTION 2. FRAME SURVEY DATA 14

2.1. WHOLE LAXE 14

2.2. BY STATE 14

2.3. BY SUB-STRNTUM 14

2.4. NUNIBER OF FISHERWOME.N, SHORE FISHERS AND TRANSPORT BOATS 16

SECTION 3. NUMBER OF LICENSED FISHERMEN BY STATE 16

SECTION 4. MESH SIZE DISTRIBUTION 17

SECTION 5. FISHING NET CHARACTERISTICS 18

SECTION 6. FISH YIELD 19

MONTHLY YIELD 1.9

6,2, BREAKDOWN OE THE ANNUAL YIELD BY FISH TAXON 19

6.3. BREAKDOWN OF THE ANNUAL YIELD BY FISH TAXON AND GEAR TYPE 19

SECTION 7. TOTAL ANNUAL FISHING EFFORT BY GEAR TYPE 20

SECTION 8. TOTAL ANNUAL VALUE OF FISH LANDED BY GEAR TYPE 21

SECTION 9. FISHING ACTIVITY AND CPUE LEVELS 22

TABLE OF CONTENTS

NGKITIT Tech. Rep. Series ISSN: 1119- 1449

Fisheries Statistical 13ulletin, Kainji Lake, Nigeria. 1997 Page 12

SECTION 1. FISHING LOCALITIES AND TYPES 13

1.1. WHOLE LAKE 13

1.2. BY STATE 13-

SECTION 2. FRA.ME SURVEY DATA 14

2.1. WHOLE LAKE 14

2.2. BY STATE 14

2.3. BY SUB-STRAFUM 14

2.4. NUNIEER OF FISBERWOMEN, SHORE FISHERS AND TRANSPORT BOATS 16

SECTION 3. NUMBER OF LICENSED FISHERMEN BY STATE 16

SECTION 4. MESH SIZE DISTRIBUTION 17

SECTION 5. FISHING NET CHARACTERISTICS 18

SECTION 6. FISH YIELD 19

MONTHLY YIELD 196,2, BREAKDOWN OF THE ANNUAL YIELD BY FISH TAXON 196.3, BREAKDOWN OF THE ANNUAL YIELD BY FISH TAXON AND GEAR TYPE 19

SECTION 7. TOTAL ANNUAL FISHING EFFORT BY GEAR TYPE 20

SECTION 8. TOTAL ANNUAL VALUE OF FISH LANDED BY GEAR TYPE 21

SECTION 9. FISHING ACTIVITY AND CPUE LEVELS 22

1.1. Whole Lake

Locality type

NCALIPP Tech. Rep. Series ISSN: 1119- 1449

Section 1. Fishing Localities and Types

1.2. By State

Kebbi

Note J permanent villages, 2 permanent fishing camps, 3= temporary,fishing camps growlwithin Kaiini Lake), 4= temporal:y,fishing camps (from outside Kail!)i Lake).

Fisheries Statistical Bulletin, Kainji Lake, Nigeria. 1997 Pa.ge 13

Yeai 1 2 3 4 Total1993 181 24 1 0 2061994 220 36 2 0 2581995 228 26 16 3 2731996 245 29 8 4 2861997 272 34 2 i 309

Year 1 2 3 4 Total1993 117 7 1 0 1251994 142 14 1 0 1571995 149 11 13 2 1751996 156 13 2 0 171

1997 181 20 0 0 201

Year 1 2 3 4 Total1993 64 17 0 0 81

1994 78 22 1 0 101

1995 79 15 3 981996 89 16 6 4 115

1997 91 14 2 1 108

i er Locality tvoe

1.1. Whole Lake

1.2. By State

Kebbi

Locality tvDe

NG1{1I'll) Tech. Rep. Scrics ISSN: 1119- 1449

Section 1. Fishing Localities and Types

Note J permanent villages, 2 permanent fishing CallpS, 3= temporary,fishing camps (frowlwithin Kainii Lake), 4 temporal: yfishing camps (from outside KallYi Lake).

Fisheries Statistical Billeuin, Kainji Lake, Nigeria. 1997 Pa.ge 13

Y eat 1 2 3 4 Total1993 181 24 1 0 2061994 220 36 2 0 2581995 228 26 16 3 2731996 245 29 8 4 2861997 272 34 2 i 309

Year 1 2 3 4 Total1993 117 7 1 0 1251994 142 14 1 0 1571995 149 11 13 2 1751996 156 13 2 0 171

1997 181 20 0 0 201

Year 1 2 3 4 Total1993 64 17 0 0 81

1994 78 22 1 0 1011995 79 15 3 981996 89 16 6 4 115

1997 91 14 2 1 108

i er Localit tvoe

2.1. Whole Lake

2.2. By State

Niger

NGKLFPF Tech. Rep. Series ISSN: 1119- 1449

Section 2. Frarne Survey Data

Kebbi

2.3. By Sub-Stratum

Sub stratum 01

Year Ent As sis Can Eng GN DN B S CN LL TR1993 4,285 11,626 8,259 1,128 22.387 1,035 560 4,890 12,939 27,177

1994 3.915 9,439 7.355 1,129 19,583 942 618 5,080 12,554 32,332

1995 4.937 12,218 8,755 1,307 17,680 1,576 810 5,760 7,762 38,817

1996 5,499 12,449 9,278 1.299 18,655 1,560 753 5,548 7,400 36,979

1997 5,772 7,136 7,623 1,001 12,566 1,004 582 3,703 7,996 32,711

Year Ent As s is Can Eng GN DN B S CN LL TR1993 2,141 4,825 3,680 512 9,474 393 220 2,417 6,357 11,2091994 2,001 4,166 3,331 576 8,408 324 292 2,100 4,990 10,0781995 2,589 5,587 4,119 674 8,616 703 404 2,887 3,663 13,4641996 2,690 5,729 4,372 666 9,460 790 391 2,741 3,208 12,2411997 2,830 3,202 3,638 554 5,966 464 304 1,747 3,113 11,453

Year Ent Ass's Can Eng GN DN B S CN LL TR1993 2,144 6,801 4,579 616 12,913 642 340 2,473 6,582 15,9681994 1,914 5,273 4,024 553 11,175 618 326 2,980 7,564 22,2541995 2,384 6,631 4,636 633 9,064 873 406 2,873 4,099 25,3531996 2,809 6,720 4,906 633 9,195 770 362 2,807 4,192 24,7381997 2,942 3,934 3,985 447 6,600 540 278 1,956 4,883 21,258

Year Ent As sis Can Eng GN DN B S CN LL TR1993 353 733 570 82 1,249 17 56 300 589 1,097

1994 400 750 597 104 1,533 2 92 438 1,055 3,261

1995 591 1,442 897 101 1.898 117 121 591 830 4,492

1996 742 1,501 1,257 95 2,906 204 110 859 1,235 4,399

1997 749 494 827 63 1.301 33 55 395 737 3,435


2.1. Whole Lake

2.2. By State

Ni er

Kebbi

2.3. By Sub-Stratum

Sub stratum 01


Section 2. Frame Survey Data

Year Ent Assis Can Eng GN DN B S CN LL TR1993 4,285 11,626 8,259 1,128 22,387 1,035 560 4,890 12,939 27,177

1994 3,915 9,439 7.355 1,129 19,583 942 618 5,080 12,554 32,332

1995 4.937 12.218 8,755 1,307 17,680 1,576 810 5,760 7,762 38,817

1996 5,499 12,449 9,278 1,299 18,655 1,560 753 5,548 7.400 36,979

1997 5,772 7,136 7,623 1,001 12,566 1,004 582 3,703 7,996 32,711

Year Ent Assis Can Eng GN DN B S CN LL TR1993 2,141 4,825 3,680 512 9,474 393 220 2,417 6,357 11,2091994 2,001 4,166 3,331 576 8,408 324 292 2,100 4,990 10,0781995 2,589 5,587 4,119 674 8,616 703 404 2,887 3,663 13,4641996 2,690 5,729 4,372 666 9,460 790 391 2,741 3,208 12,2411997 2,830 3,202 3,638 554 5,966 464 304 1,747 3,113 11,453

Year Ent Assis Can Eng GN DN B S CN LL TR1993 2,144 6.801 4,579 616 12,913 642 340 2,473 6,582 15,9681994 1,914 5,273 4,024 553 11,175 618 326 2,980 7,564 22,2541995 2,384 6,631 4,636 633 9,064 873 406 2,873 4,099 25,3531996 2,809 6,720 4,906 633 9,195 770 362 2,807 4,192 24,7381997 2,942 3,934 3,985 447 6,600 540 278 1,956 4,883 21,258

Year Ent Assis Can Eng GN DN B S CN LL TR1993 353 733 570 82 1,249 17 56 300 589 1,097

1994 400 750 597 104 1,533 2 92 438 1,055 3,261

1995 591 1,442 897 101 1.898 117 121 591 830 4,492

1996 742 1,501 1,257 95 2,906 204 110 859 1,235 4,399

1997 749 494 827 63 1.301 33 55 395 737 3,435


Sub stratum 03

Sub stratum 04

Sub s ra um 05

Sub stratum 06

Sub stratum 07

WALL:PP 'Fed]. Rep. Series ISSN: 1119- 1449

Sub stratum 02Year Ent Assis Can Eng GN DN B S CN LL TR1993 687 1,333 1,086 61 3,449 3 23 1160 3,213 1,000

1994 559 1,051 908 48 2,567 26 28 730 1,262 2,423

1995 709 1,155 985 82 2,118 129 62 895 1,068 2,901

1996 639 1,013 892 51 1,866 114 47 745 820 2,308

1997 608 507 719 52 1,376 92 43 476 1,259 3,729

Year Ent Assis Can Eng GN DN BS CN LL TR1993 687 1,774 1,110 199 3,050 32 120 616 1,185 2,205

1994 619 1,354 926 219 2,537 16 138 517 1,560 3,583

1995 751 1,803 1,177 266 2,868 107 166 1,004 635 2,893

1996 755 1,984 1,179 266 2,770 132 197 719 468 2,688

1997 891 1,463 1,206 262 2,062 119 182 562 555 3,098

Year Ent Assis Can Eng GN DN BS CN LL TR1993 59 108 111 19 393 0 4 50 420 0

1994 64 183 141 23 589 0 4 105 487 0

1995 75 189 119 37 340 3 16 41 115 95

1996 86 183 121 35 269 2 16 57 66 150

1997 66 93 84 28 189 0 7 13 54 70

Year Ent Assis Can Eng GN DN BS CN LL TR1993 199 624 341 152 1,341 12 66 120 662 1,702

1994 156 438 333 119 1,265 0 66 152 360 1,045

1995 245 687 397 182 1,301 29 101 127 418 1,776

1996 274 799 395 173 1,139 16 99 123 227 1,235

1997 274 509 321 144 721 10 88 71 154 1,833

Year Ent Assis Can Eng GN DN BS CN LL TR1993 907 2,781 1,959 196 5,997 3 155 1,243 2,907 10,606

1994 744 1,631 1,348 133 4,191 0 69 946 3,034 9,413

1995 955 2,616 1,984 180 4,321 129 191 1,589 1,101 13,200

1996 1.047 2,622 1,915 171 4,262 86 127 1,412 1,550 9,555

1997 1,157 1,520 1,610 86 3,556 84 77 1,041 1,565 10,303

Year Ent Assis Can Eng GN DN B S CN LL TR1993 368 881 811 153 1,532 325 14 281 1,003 6,777

1994 358 869 785 180 1,356 280 28 325 681 531

1995 436 953 911 168 1,374 340 34 357 968 3,005

1996 478 1,141 971 220 1,661 354 27 348 568 2,615

1997 477 611 759 144 1,050 221 20 218 506 944

Fisherie,y Stati,slical Bulletin, Kainji Lake, Nigeria. 1997 Page 15

Sub stratum 03

Sub stratum 04

Sub stratum 05

Sub stratum 06

Sub stratum 07

WALL:PP Tech. Rep. Series ISSN: 1119- 1449

Sub stratum 02Year Ent Assis Can Eng GN DN B S CN LL TR1993 687 1,333 1,086 61 3,449 3 23 1160 3,213 1,000

1994 559 1,051 908 48 2,567 26 28 730 1,262 2,423

1995 709 1,155 985 82 2,118 129 62 895 1,068 2,901

1996 639 1,013 892 51 1,866 114 47 745 820 2,308

1997 608 507 719 52 1,376 92 43 476 1,259 3,729

Year Ent Assis Can Eng GN DN BS CN LL TR1993 687 1,774 1,110 199 3,050 32 120 616 1,185 2,205

1994 619 1,354 926 219 2,537 16 138 517 1,560 3,583

1995 751 1,803 1,177 266 2,868 107 166 1,004 635 2,893

1996 755 1,984 1,179 266 2,770 132 197 719 468 2,688

1997 891 1,463 1,206 262 2,062 119 182 562 555 3,098

Year Ent Assis Can Eng GN DN BS CN LL TR1993 59 108 111 19 393 0 4 50 420 0

1994 64 183 141 23 589 0 4 105 487 0

1995 75 189 119 37 340 3 16 41 115 95

1996 86 183 121 35 269 2 16 57 66 150

1997 66 93 84 28 189 0 7 13 54 70

Year Ent Assis Can Eng GN DN BS CN LL TR1993 199 624 341 152 1,341 12 66 120 662 1,702

1994 156 438 333 119 1,265 0 66 152 360 1,045

1995 245 687 397 182 1,301 29 101 127 418 1,776

1996 274 799 395 173 1,139 16 99 123 227 1,235

1997 274 509 321 144 721 10 88 71 154 1,833

Year Ent Assis Can Eng GN DN BS CN LL TR1993 907 2,781 1,959 196 5,997 3 155 1,243 2,907 10,606

1994 744 1,631 1,348 133 4,191 0 69 946 3,034 9,413

1995 955 2,616 1,984 180 4,321 129 191 1,589 1,101 13,200

1996 1,047 2,622 1,915 171 4,262 86 127 1,412 1,550 9,555

1997 1,157 1,520 1,610 86 3,556 84 77 1,041 1,565 10,303

Year Ent Assis Can Eng GN DN BS CN LL TR1993 368 881 811 153 1,532 325 14 281 1,003 6,777

1994 358 869 785 180 1,356 280 28 325 681 531

1995 436 953 911 168 1,374 340 34 357 968 3,005

1996 478 1,141 971 220 1,661 354 27 348 568 2,615

1997 477 611 759 144 1,050 221 20 218 506 944

Fisherie,y Stati,ytical Bulletin, Kainji Lake, Nigeria. 1997 Page 15

Note: Ent= ,fishing entrepreneur (owner of the fishing units), aSSiS .fishing assistants, canfishing canoes, eng: outboard engines-, GN: gill net bundles, DAT: drift. nets, BS: beach,seines,CN: CaSi nets, LL: long/mes, IR.Jishing traps.011e bundle of gill net is .100 yds (91 meters) of unmounted netting material.Que longline is 100 hook.s (1 packet),

2.4. Number of Fisherwornen, Shore Fishers and Transport Boats

Section 3. Number of Licensed Fishermen by State

NC3KLFIT Tech. Rep. Series ISSN: 1119- 1449

Sub stratum 08

Note: Licen.se .fee per fishing ennepreneur (owner of the fishing gear) Naira 200,.fee per.fishing assistant (hired workers or sons/ daughters of the entrepreneur) Naira 50.Figures as at lst. June, 1998.

Year Ent L Assis Can Eng GN .DN BS CN LL 'FR1993 1,025 3,392 2,271 266 5376 643 122 1,120 2,960 3,790

1994 1,015 3363 2.317 303 5,545 618 193 1,867 4,115 12,076

1995 1,211 3,373 2.285 291 3.460 722 119 1,156 2.627 10.455

1996 1478 3,206 2,548 288 3,782 652 130 1,285 2,466 14,029

1997 1.550 1,939 2,097 222 2,311 445 110 927 3,166 9,299

Year Fisherwornen Shore fishers Trans .)ort boats1993 460 1881994 _. 949 1781995 115 573 2211996 226 360 173

1997 335 184 127

Niger KebbiYear Ent Ass Ent Ass1998 1,730 1,644 1,427 1,557

Fisheries Statistical Bulletin, Kainfi Lake, Nigeria. 1997 Page 16

Note: Ent= .fishing entrepreneur (Mlle,' of the fishing units), CISSiS .fishing assistants, canfishing canoes, eng: outboard engines-, GN: gill net bundles, DAT: drift. nets, BS: beachseines,CN: cast nets, LL: long/mes, IR: ,fishing traps,One bundle of gill net is 100 yds (91 meters) of unmounted netting material.Otte longline is 100 hooks (1 packet),

2.4. Number of Fisherwomen, Shore Fishers and Transport Boats

Section 3. Number of Licensed Fishermen by State

NC3KLFFP Tech. Rep. Series ISSN: 1119- 1449

Sub str(tum 0 8

Note: License .fee per fishing entrepreneur (owner of the fishing gear) Nana 200,..fee per.fishing assistant (hired workers or sons/ daughters of the entreprenetu) Naira 50.Figures as at lst, lime, 1998.

Year Ent Assis Can e T 2.

993 1,025 3,392 2,271 Nizimin 2,960 3,790

1994 1,015 3,163 2.317 303 Egnammi. 4,1151995 1,211 3,373 2.285 mu 3,460 2.627 10,455

1996 1.478 3,206 2,548 288 3,782 2,466 14,029

1997 1,550 2,097 =MEE 3,166 9,299

Year Fisherwomen Shore fishers Transport boats1993 460 1881994 949 1781995 115 573 2211996 226 360 173

1997 335 184 127

Niger KebbiYear Ent Ass Ent Ass1998 1,730 1,644 1,427 1,557


Section 4. Mesh Size Distribution (%)

Gill Net

Drift Net

Beach Seine

Cast Net

NGKLF1313 'Tech. Rep. Series ISSN: 1119- 1449

Note: According to the Niger and Kebbi State Fisheries Edicts, Alinimum allowable mesh sizes;GN : 3 inch , DN : 2.5 inch , CN : 2.0 inch, beach seines are banned under the edict.All nie,sh sizes measured as siretched mesh size in inches.

Mesh SizeYear 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 >5 % illegal1994 6 1 3 20 16 12 22 10 4 2 4 461995 1 2 4 19 20 16 22 10 2 2 2 461996 0 8 5 23 10 18 15 14 1 2 4 461997 010 7 18 12 19 18 9 1 2 4 47

Mesh SizeYear 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 >5 % illegal1994 7 4 0 89 0 0 0 0 0 0 0 1001995 1 32 9 46 10 2 0 0 0 0 0 881996 0 41 2 48 0 4 1 4 0 0 0 911997 0 32 1 38 0 10 0 17 0 1 1 71

Mesh SizeYear 0.11 1.0 % illegal1994 100 0 1001995 98 2 1001996 94 6 1001997 95 5 100

Mesh SizeYear 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 >5 % illegal1994 9 6 10 42 16 7 10 0 0 0 0 251995 4 6 8 35 30 13 3 2 0 0 0 18

1996 0 3 11 31 22 21 2 4 0 5 1 14

1997 1 14 11 33 14 18 0 7 0 2 0 26

Fisheries- Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 17

Section 4. Mesh Size Distribution (%)

Gill Net

Drift Net

Beach Seine

Cast Net

NGKLFPF) 'Tech. Rep. Series ISSN: 1119- 1449

Note: According to the Niger and Kebbi State Fisheries Edicts, Minimum allowable mesh sizes:GN : 3 inch , DN : 2.5 inch , CN : 2.0 inch, beach seines are banned under the edict.All me,sb sizes measured as stretched mesh size in inches.

Mesh SizeYear 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 >5 % illegal1994 6 1 3 20 16 12 22 10 4 2 4 461995 1 2 4 19 20 16 22 10 2 2 2 461996 0 8 5 23 10 18 15 14 1 2 4 461997 010 7 18 12 19 18 9 1 2 4 47

Mesh SizeYear 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 >5 % illegal1994 7 4 089 0 0 0 0 0 0 0 1001995 132 9 46 10 2 0 0 0 0 0 881996 0 41 2 48 0 4 1 4 0 0 0 911997 0 32 1 38 0 10 0 17 0 1 1 71

Mesh SizeYear 0.11 1.0 % illegal1994 100 0 1001995 98 2 1001996 94 6 1001997 95 5 100

Mesh SizeYear 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 >5 % illegal1994 9 6 10 42 16 710 0 0 0 0 251995 4 6 8 35 30 13 3 2 0 0 0 18

1996 0 3 11 31 22 21 2 4 0 5 1 14

1997 1 14 11 33 14 18 0 7 0 2 0 26

Fisherie.s- Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 17

Section 5. Fishing Net Characteristics

Gill Net

Drift Net

Beach Seine

Cast Net

Note: All measurements are means. The mesh sizes measured are stretched mesh size in inches.Headline lengths and depths measured in meters.

NGKUPP Tech. Rep. Series ISSN: 1119- 1449

Year Mesh size Head length Depth1994 2.9 219 2.91995 2.9 227 1.91996 2.9 201 2.41997 2.8 200 2.2


Year Mesh size Head fength r Depth1994 0.12 163 5.61995 0.14 143 7.21996 0.17 134 5.2-1997 0.16 111 5.1

Year Mesh size Net diameter1994 2.1 9.41995 2.2 7.81996 2.5 9.91997 2.2 12.4


Section 5. Fishing Net Characteristics

Gill Net

Drift Net

Beach Seine

Cast Net

NGKUPP Tech. Rep. Series ISSN: 1119- 1449

Note: All measurements are means. The mesh sizes measured are stretched mesh size in inches.Headline lengths and depths measured in meters.



Year Mesh size Head fength Depth1994 0.12 163 5.61995 0.14 143 7.21996 0.17 134 5.2-1997 0.16 111 5.1

Year Mesh size Net diameter1994 2.1 9.41995 2.2 7.81996 2.5 9.91997 2.2 12.4


Section 6. Fish Yield

6.1. Monthly Yield

6.2. Breakdown of the Annual Yield by Fish Taxon

6.3. Breakdown of the Annual Yield by Fish Taxon and Gear Type

NGKLFPP Tech. Rcp. Scrics ISSN: 1119- 1449

Drift net

YearMonth 1994 1995 1996 1997

Jan. 4,267 2,659 3,209Feb. 4,618 2,867 2,144Mar. 3,876 3,151 2,924Apr. 2,586 3,830 2,515May 3,127 3,894 2,643Jun. 2,387 4,446 2,435Jul. 2,330 2,979 2,684Aug. 2,519 2,502 1,747

Sep. 2,193 2,317 2,384Oct. 1,427 3,288 2,140Nov. 4,302 1,333 3,072 1,934Dec. 3,902 1,811 3,241 1,994Total 8,204 32,474 38,246 28,753

Species groupYear Clu Cic Syn Lat Bag Ale Cit Oth Total1995 9,526 2,923 2,779 831 4,159 933 5,249 6,073 32,474

1996 16,167 3,616 3,592 1,087 4,604 881 3,477 4,822 38,246

1997 8,877 3,009 4,061 851 3,728 700 3,512 4,015 28,753

Year Clu Cic Syn Lat Bag Ale Cit Oth Total1995 0 613 731 200 969 173 1276 1338 5,300

1996 0 780 1939 376 1244 289 1345 1429 7,402

1997 0 766 2037 377 896 222 1740 1326 7,364


1996 0 172 457 56 373 105 374 668 2,208

1997 0 116 345 39 242 66 360 486 1,653-

Fisheries Stati.slical Bulletin, Kairyi Lake, Nigeria. 1997 Page 19

Gill net S ecies rou

Section 6. Fish Yield

6.1. Monthly Yield

6.2. Breakdown of the Annual Yield by Fish Taxon

6.3. Breakdown of the Annual Yield by Fish Taxon and Gear Type

Drift net

NGKLFPP Tech. Rep. Scrics ISSN: 1119- 1449

YearMonth 1994 1995 1996 1997

Jan. 4,267 2,659 3,209Feb. 4,618 2,867 2,144Mar. 3,876 3,151 2,924Apr. 2,586 3,830 2,515May 3,127 3,894 2,643Jun. 2,387 4,446 2,435Jul. 2,330 2,979 2,684Aug. 2,519 2,502 1,747Sep. 2,193 2,317 2,384Oct. 1,427 3,288 2,140Nov. 4,302 1,333 3,072 1,934Dec. 3,902 1,811 3,241 1,994Total 8,204 32,474 38,246 28,753

Species groupYear Clu Cic Syn Lat Bag Ale Cit Oth Total1995 9,526 2,923 2,779 831 4,159 933 5,249 6,073 32,474

1996 16,167 3,616 3,592 1,087 4,604 881 3,477 4,822 38,246

1997 8,877 3,009 4,061 851 3,728 700 3,512 4,015 28,753


1996 0 780 1939 376 1244 289 1345 1429 7,402

1997 0 766 2037 377 896 222 1740 1326 7,364


1996 0 172 457 56 373 105 374 668 2,208

1997 0 116 345 39 242 66 360 486 1,653

Fisheries Statistical Bulletin, Kaiiyi Lake, Nigeria. 1997 Page 19

Gill net S ecies rou

Beach seine

Cast net

Lon line

Fishin tra


Note: Clzt-clztpeids., Cic-cichlids, Syn-Synodontis/ hemisynodontis, Lates, Bag-Bagrus/Chryichthys/ Clarotes, Ale-Alestes, Cit-Citharimts/ Distichodzts, Oth-Cyprinids/Mormyrids/Hydrocynzts../ Clarids.All yield estimates are measured in metric tonnes

Section 7. Total Annual Fishing Effort by Gear Type

Note.. Effort is expressed as total number of gear fishing days in units of 1000: GN: number ofgill net bundles, DiV, BS, CN: total number of nets, LL, IR .. total number lines/ traps.

Year Clu Cic Syn Lat Bag Ale Cit Oth Total1995 9,526 605 662 324 897 292 1,370 1,540 15,215

1996 16,167 473 212 285 1,204 235 861 896 20,334

1997 8.877 385 190 171 566 159 477 501 11,327

Year Clu Cie Syn Lat Bag Ale Cit Oth Total1995 0 1,027 330 23 295 205 1,424 765 4,070

1996 0 1.314 396 29 135 103 762 579 3,318

1997 0 901 1.019 13 92 69 844 550 3,489


1996 0 89 218 323 660 7 20 584 1,900

1997 0 76 118 235 443 8 29 510 1,419


1996 0 788 370 18 988 141 114 666 3,086

1997 0 765 352 15 1,489 175 62 642 3,500

Gear typeYear GN DN BS CN LL TR1995 1,455 133 214 244 694 3,135

1996 2,043 164 2'76 231 666 5,867

1997 2.063 130 229 261 525 5,876


Beach seine

Cast net

Lon line

Fishin tra


Note: Un-chipeids, Cic-cichlids, Syn-Synodontis/ hemisynodontis, Lat- Lates, Bag-Bagrus/Chiyichthys/ Clarotes, Ale-Alestes, Cit-Citharinus/ Distichodus, Oh-Cyprinids/Mormyrids/Hydrocynits/ Ciar/cts.All yield estimates are measured in IlleiriC toimes

Section 7. Total Annual Fishing Effort by Gear Type

Note: Effort is expressed as total number of gear fishing days in units of 1000: GN: number ofgill net bundles, DN, BS, CN: total number of nets, LL, IR : total number lines/ traps.

Year Clu Cic Syn Lat Bag Ale Cit Oth Total1995 9,526 605 662 324 897 292 1,370 1,540 15,215

1996 16,167 473 212 285 1,204 235 861 896 20,334

1997 8,877 385 190 171 566 159 477 501 11,327

Year Clu Cie Syn Lat Bag Ale Cit Oth Total1995 0 1,027 330 23 295 205 1,424 765 4,070

1996 0 1,314 396 29 135 103 762 579 3,318

1997 0 901 1,019 13 92 69 844 550 3,489


1996 0 89 218 323 660 7 20 584 1,900

1997 0 76 118 235 443 8 29 510 1,419


1996 0 788 370 18 988 141 114 666 3,086

1997 0 765 352 15 1,489 175 62 642 3,500

Gear typeYear GN DN BS CN LL TR1995 1,455 133 214 244 694 3,135

1996 2,043 164 2'76 231 666 5,867

1997 2,063 130 229 261 525 5,876


N1KLF1313 Tech. Rep. Series ISSN: 1119- 1449

Section 8. Total Annual Value of Fish Landed by Gear Type

Note. Catch value expres,sed inn/111S of 1000 Naira (where $US1= 87 Naira, 28/5/97)


Gear typeYear GN DN BS CN LL TR Total1995 163,878 108,633 264,173 114311 87,791 48.225 787,411

1996 294,231 100,459 307,704 120,305 91,345 97,986 1,012,030

1997 290,299 71,379 196,618 111,779 73,660 109,152 852,887

NGKL,FPP Tech. Rep. Series ISSN: 1119- 1449

Section 8. Total Annual Value of Fish Landed by Gear Type

Note: Catch value expressed in 1117iiS of 1000 Naira (where SUS1= 87 Naira, 28/5/97)


Gear typeYear GN DN BS CN LL TR Total1995 163,878 108,633 264,173 114,711 87,791 48.225 787,411

1996 294,231 100,459 307,704 120,305 91,345 97,986 1,012,030

1997 290,299 71,379 196,618 111,779 73,660 109,152 852,887

Section 9. Fishing Activity and cpue Levels

Figure 1. Gill Net Activity Level by Month

45 - -

40....,

35 - - .-- ----, :,-,-,.-.,-30 - .---'------- ,25 - .. -4.----___ ,..-

20 - N\ -.........15 -

10 -

5 -

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

Figure 2. Gill Net cpue by Month

8

7 -

6 -

5 -

4 -

3

2 -

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

Fisheries Statistical Bulletin, Kainji Lake, Nigeria. 1997


--19951996-1997

Page 22

Section 9. Fishing Activity and cpue Levels

Figure 1. Gill Net Activity Level by Month

45

40

35 -

30

25 -

20 -

15 -

10 -

5 -

o

8 -

7 -

6

5 -

4 -

3

2 -

1 -

o

Figure 2. Gill Net cpue by Month

1 2 3 4 5 6 7 8 9 10 11 12

Month

Fisheries Statistical Bulletin, Kainji Lake, Nigeria. 1997


1 2 3 4 5 6 7 8 9 10 11 12

Month

----19951996

--- -1997

-- 1995- ,1996

-----1997

Page 22

Figure 3. Drift Net Activity Level by Month

80

70

60

50

40

30

20

10

o

Figure 4. Drift Net cpue by Month

60

50

40

30

20

10

O

NGKI.,FPF) Tech. !Zen. Serios ISSN: 1119-1449

1995

- -1996

1997

- 1996

1997

:Fisheries Statistical Bulletin, Kainji Lake, .Nigeria. 1997 Page 23

1 2 3 4 5 6 7 8 9 10 11 12

Month

1 2 4 5 6 7 8 9 10 11 12

Month

Figure 3. Drift Net Activity Level by Month

80

70

60

50

40

30

20

10

Figure 4. Drift Net cpue by Month

60

50

40

30

20

10

o

o

NGKI.,FPF) Tech. Ron, Series ISSN: 1119- 1449

1995

- -1996

1997

1995- - -1996

-- 1997

:Fisheries Statistical Bulletin, Kai17ii Lake, Nigeria, 1997 Page 23

1 2 3 4 5 6 7 8 9 10 11 12

Month

1 2 4 5 6 7 8 9 10 11 12

Month

Figure 5. Beach Seine Activity Level by Month

Figure 6. Beach Seine cpue by Month

120

100

60

40

20

-

80

NGKLITP Tech. Rep, Series ISSN: 1119- 1449

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

1995

1996

------1997

- -1996

-1997

2 3 4 5 6 7 8 9 10 11 12Month

1

Fi,yheries S'tatistical Bulletin, Kainfi Lake, Nigeria, 1997 Page 24

Figure 5. Beach Seine Activity Level by Month

120

100 P

Figure 6. Beach Seine cpue by Month

120

100

1 2 3 4 5 6 7 8 9 10 11 12Month

80

NGKLITP Tech. Rep, Series ISSN: 1119- 1449

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

1995

- - 1996

------1997

1995

- - -1996

----199760

Fisheries S'iciti.s.tical Luke, Nigeria, 1997 Page 24

Figure 7. Cast Net Activity Level by Month

25

20 -

15 -

10 -

5 -

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

Figure 8. Cast Net cpue by Month

35

30 -

25- , \/

...------.* . , .. , \20 - / , , 4,.

,

15

o


1 2 3 4 5 6 7 8 9 10 11 12

Month

-19951996

1997

1995

.- - 1996

- 1997

Fisheries Statistical Bulletin, Kalil.» Lake, Nigeria. 1997 Page 25

- -10 -

5 -

Figure 7. Cast Net Activity Level by Month

25

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

Figure 8. Cast Net cpue by Month

35

30 -

25 -

20 -

15-'

10 -

5 -

o

1 2 3 4 5 6 7 8 9 10 11 12

Month

//


-

----1995e- - -1996

1997

----1995-e- - -1996

- 1997


'

`774L-.øç

Figure 9. The Longline Activity Level by Month

45

40 -

35 -

30

25

20

15

10

5

O

5

4.5

4

3.5

3

2.5

2

1.5

1

0.5

O

1 2 3 4 5 6 7 8 9 10 11 12

Month

Figure 10. The Longline cpue by Month


1 2 3 4 5 6 7 8 9 10 11 12

Month

1995

-1996

1997

Fi,s-herie,s Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 26

Figure 9. The Longline Activity Level by Month

45

40 -

35 -

30

25

20

15

10

5

o

Figure 10. The Longline cpue by Month

5

4.5

4

3.5

3

2.5

2

1.5

1

0.5

o

NGKI-FPP Tech. Rep. Series ISSN: 1119- 1449

/'

1 2 3 4 5 6 7 8 9 10 11 12

Month

'Of

1 2 3 4 5 6 7 8 9 10 11 12

Month

---1995-1996

. 1997

--19951996

- 1997

Fi,s-herie,s Statistical Bulletin, Kainji Lake, Nigeria. 1997 Page 26

Figure 11. Fishing Trap Activity Level by Month

60 -

50 -

40 -

30 -

20 -

10 -

o

0.8 -

0.6 -

0.4 -

0.2 -

o

1.2

Figure 12. Fishing Trap cpue by Month

Month

NGKLFPF Tech. Rep. Series ISSN: 1119- 1449

6

1 2 3 4 5 6 7 8 9 10 11 12Month

1 2 3 4 5 6 7 8 9 10 11 12

Note: activity is expressed as a percent of the total number of gears fishing per monthcpue is expressed as mean monthly Kg.fish caught per gear per 24 hrs.

---19951996

- 1997

1995

1996

- 1997


Figure 11. Fishing Trap Activity Level by Month

60 -

50 -

40 -

30 -

20 -

10 -

o

1 2 3 4 5 6 7 8 9 10 11 12Month

Figure 12. Fishing Trap cpue by Month

1.2

0.8 -

0.6 -

0.4 -

0.2 -

o

\


1 2 3 4 5 6 7 8 9 10 11 12

Month

Note: activity is expressed as a percent of the total number of gears fishing- per monthcpue is expressed as mean monthly Kg fish caught per gear per 24 hrs.

----1995- 1996

- 1997

1995

1996

- 1997


NGKLEPP_Tecll. Rep. Series ISSN: 1119- 1449

NIGERIAN-GERMAN KAINJI LAKE FISHER1JS PROMOTION PROJECT TECHNICALREPORT SERIES

lbeun, M. O and M. Mdaihli (1994)Media of communication among fishermen around Kainji Lake basin.Nigerian-German Kainji Lake Fisheries Promotion Project Technical Report Series 1.ISBN 978-037-000-5

Drescht, S.; S.O. Alainti, and F. Adu (1995)Nutritional habits and food consumption patterns of fishing communities around LakeKainji, Nigeria. Nigerian-German Kainji Lake Fisheries Promotion Project TechnicalReport Series 2. ISBN 978-037-001-3

Adu, F.A. (1996)The nutritional status of pre-school children, Kainji Lake communities, Nigeria: a baselinesurvey. Nigerian-German Kainji Lake Fisheries Promotion Project Technical Rtport Series3.. ISBN 978-037-002-1

Ayeni I.S.O. and Mdailili (1996)Identification of non fishing income opportunities around Kainji Lake. Nigerian-GermanKaitiji Lake Fisheries Promotion Project Technical Report Series 4ISBN 978-037-003-X

Eyo, A.A. (1997)Post harvest losses in the fisheries of Kainji Lake. Nigerian-German Kainji Lake FisheriesPromotion Project Technical Report Series 5. ISBN 978-037-004-8

du Feu, TA; O.S. Mayo:mi. and M.D.B. Seisay (1997)Fishing gear survey, Kainji Lake, northern Nigeria, 1996. Nigerian-German Kainji LakeFisheries Promotion Project Technical Report Series 6. ISBN 978-037-005-6

du Feu, TA. and O.S. Abayomi (1997)Frame survey of Kainji Lake, Northern Nigeria, 1996. Nigerian-German Kainji LakeFisheries Promotion Project Technical Report Series 7. ISBN 978-037-006-4

Ayeni, I.S.0 and Mdaihli, M. (1997)Alternative income in Kainji Lake area: introduction of improved cocks tolisherfolk. Nigerian-German Kainji Lake Fisheries Promotion Project Technical ReportSeries 8. ISBN 978-037-007-2

Nigerian-German Kainji. Lake Fisheries Promotion ProjectFisheries Statistical Bulletin Kainji Lake, 1997 Nigerian-German Kainji Lake FisheriesPromotion Project Technical Report Series 9 ISBN 978-037-008-0

9alistical Bulletin, Kainji Lake, Nigeria. 1997 Page 28

NG1(1_,F1-1)_Tech. Rep. Series ISSN: 1119- 1449

NIGERIAN-GERMAN KAINJI LAKE FISHER1JiS PROMOTION PROJECT TECHNICALREPORT SERIES

lbeun, M. O and M. Mdaihli (1994)Media of communication among fishermen around Kainji Lake basin.Nigerian-German Kainji Lake Fisheries Promotion Project Technical Report Series 1.ISBN 978-037-000-5

Dreschl, S.; S.O. Alainu, and F. Adu (1995)Nutritional habits and food consumption patterns of fishing communities around LakeKainji, Nigeria. Nigerian-German Kainji Lake Fisheries Promotion Project TechnicalReport Series 2. ISBN 978-037-001-3

Adu, F.A. (1996)The nutritional status of pre-school children, Kainji Lake communities, Nigeria: a baselinesurvev. Nigerian-German Kainji Lake Fisheries Promotion Project Technical Rtport Series3.. ISBN 978-037-002-1

Ayeni I.S.O. and Mdailili (1996)Identification of non fishing income opportunities around Kainji Lake. Nigerian-GerrnanKaitiji Lake Fisheries Promotion Project Technical Report Series 4ISBN 978-037-003-X

Eyo, A.A. (1997)Post harvest losses in the fisheries of Kainji Lake. Nigerian-German Kainji Lake FisheriesPromotion Project Technical Report Series 5. ISBN 978-037-004-8

du Feu, TA; O.S. Abayomi and M.D.B. Seisay (1997)Fishing gear survey, Kainji Lake, northern Nigeria, I 996. Nigerian-German Kainji LakeFisheries Promotion Project Technical Report Series 6. ISBN 978-037-005-6

du Feu, T.A. and O.S. Abayomi (1997)Frame survey of Kainji Lake, Northern Nigeria, 1996. Nigerian-German Kainji LakeFisheries Promotion Project Technical Report Series 7. ISBN 978-037-006-4

Ayeni, I.S.0 and Mdaihli, M. (1997)Alternative income in Kainji Lake area: introduction of improved cocks tofisherfolk. Nigerian-German Kainji Lake Fisheries Promotion Project Technical ReportSeries 8. ISBN 978-037-007-2

Nigerian-German Kainji Lake Fisheries Promotion ProjectFisheries Statistical Bulletin Kainji Lake, 1997 Nigerian-German Kainji Lake FisheriesPromotion Project Technical Report Series 9 ISBN 978-037-008-0

Kainji Lake, Nigeria. 1997 Page 28

Fisheries Statistical Bulletin, Kainji Lake, Nigeria, 1997.Pub. By Nigerian- German (GTZ) Kainji Lake Fisheries Promotion Project.Prepared by Mr. T.A. du Feu and M.B.D. Seisay of the NGKLFPP.



Fisheries Statistical Bulletin, Kainji Lake, Nigeria, 1997.Pub. By Nigerian- German (GTZ) Kainji Lake Fisheries Promotion Project.Prepared by Mr. T.A. du Feu and M.B.D. Seisay of the NGKLFPP.



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