渔业资源的共同管理

AnOptionforSustainableManagementofFisheryResourcesinDeeporBeel

Co-managementApproachSujanM.HenkanaththegedaraECS740:Fall2023OutlineCurrentstatusofthefisheryComposition&ProductionFisheryregulationProblemsUnsustainablefishingpracticesDeclarationofWildlifeSanctuaryPotentialimpactsofaquaculturePossiblesolutionsCommunitybasedco-managementFisheryResources61freshwaterfishspecies(Saikia2023)54indigenous;5exotics8protectedspecies(WildlifeprotectionAct,1972)20economicallyimportant11collectforornamentaltradeLabeocalbasuBrachydaniorerioNandusnandusExpectation:90,000tons/year(GoswamiandChoudhury1990)Harvest:245kg/hectare(980tons)Comparativelyveryhighyield(AFDC,Assam)FisheryProduction©Saikia,PA2023FisherCommunityTraditionalfisheryMorethan5000people/1200familiesdependonthefisheryCommunityfishingduringwinters.©Saikia,PA2023©Saikia,PA2023FisheryRegulationAuthorityAssamFisheriesDevelopmentCorporationStateFisheriesDepartmentLeasegovernmentpartsforcommercialfisheryPrivatelandownersalsoleasetheirprivatelandNewProposalsDevelopmentofpenandcageculturefortherearingandpropagationfish(GauhatiUniversity,Assam)GovernmentAuthorityandsomeinterestedpartiesproposeaquacultureinfringeareasDeclarationofDeeporBeelasaWildlifeSanctuaryProblemsIdentifiedUnsustainablefishingpracticesDeclarationofWildlifeSanctuaryPossibleimpactsofgarbagedumpingImpactsofsiltationPossibleimpactsofexoticfishConservationimplicationsforprotectedspeciesPotentialimpactsofaquacultureProblemsIdentifiedUnsustainablefishingpracticesDeclarationofWildlifeSanctuaryPossibleimpactsofgarbagedumpingImpactsofsiltationPossibleimpactsofexoticfishConservationimplicationsforprotectedspeciesPotentialimpactsofaquacultureUnsustainablefishingpracticesImpactsHarmfulfishingmethods(eg.smallmeshsize)Potentialoverharvesting(smallsizeoffish,possiblycollapsethefishery)PossiblesolutionsClosedareas/closedseasonsBanharmfulfishingmethodsClosemonitoringofillegalfishingFisheriesco-management(Myersetal.1997;HambrightandShapiro1997)DeclarationofWildlifeSanctuaryImpactsLimitationstothefisherySeriousconflictsbetweenlocalpeopleandgovernmentSocialandeconomicalproblemsinlocalcommunitiesPossibleSolutions10-20%corewildlifesanctuaryRest-Reservedwetland(humanactivitiespermitteduptosomeextent)PotentialimpactsofaquacultureImpactsIntroductionofexoticspeciesPollutionEutrophication(massfishkills!)PossibleSolutionsApropercost-benefitanalysisIfnecessary,basedonnativespeciesIfnecessary,locatebeyondthefringeareasWhattodo?BeelfisheryisstillUNDERUTILIZED.NeedtomanagethefisheryPROPERLY,Tomeetmaximumsustainableyield(MSY)ToimprovethelivingstandardsTofulfillthelocalproteinrequirementToreducetheunemploymentWhatistheneedofAQUACULTURE?WhatisCo-management?Apartnershiparrangementbetween,GovernmentagenciesLocalfishercommunityNGOsOtherstakeholdersSharetheresponsibilityandauthorityforthemanagementofafishery.Integratelocal(informal,traditional)andgovernmentmanagementsystems.Power-sharingbetweengovernmentandfishermen(Pomeroy1998).WhatisCo-management?FishersGovernmentAssamFish.Dev.CooperationStateFish.Dept.FisheriesStakeholdersBoatownersFishtradersMoneylendersExternalAgentAarnayakGauhatiUniversityLocalstakeholdersTourismTransportationFisheriesManagementModifiedafterPomeroy1998Co-managementResource-orientedstudiestodefinefisheryregulationsMonitoringthefisheryImplementingfisheryregulationsOrganizefisheriesco-operativesocietyEnhancefishproductionandimprovelivingstandardsActivegovernmentorNGOmediationMaintenanceoffisheriesco-operativesocietyProperregulationoffishingpermitsBanningharmfulfishingmethodsSocialwelfareModifiedafterAmarasingheandDeSilva1999AcknowledgementsDr.AchintyaN.Bezbaruah,CivilEngineeringDepartment,NDSUforhisguidanceandsupportDr.PrasantaKumarSaikia,DepartmentofZoology,GauhatiUniversity,IndiaforkindsharingofdataFellowcolleaguesfortheirvaluableinputsReferencescitedAmarasinghe,U.S.andS.S.DeSilva.1999.SriLankanreservoirfishery:acaseforintroductionofaco-managementstratergy.FisheriesManagementandEcology.6:387-399.Goswami,B.andA.S.Choudhury.1990.DeeporBeel-Agoldmineforsocio-economicupliftment.Pressrelease.INSTER/DeeporIII/89-Misc.3pp.Hambright,K.D.andJ.Shapiro.1997.The1993collapseoftheLakeKinneretbleakfishery.FisheriesManagementandEcology.4:275-283,Myers,R.A.,J.A.HutchingsandN.J.Barrowman.1997.WhydoFishStocksCollapse?TheExampleofCodinAtlanticCanada.EcologicalApplications.7:91-106.Pomeroy,R.S.199