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6 Enhancing Rural Farmer Income through Fish Production117ReservoirsTechnical aspectSocio-economicaspectsWater retentionPeriod less than6 monthsWater retentionPeriod more than6 monthsWillingness to practiceCBFMacrophyteabundanceLow abundanceor absence ofmacrophyteFavourableLow degree ofuser conflictsUnfavourableHigh degree ofuser conflictsLessproductivewaterProductive waterStrongcommunityorganisationWeak farmerorganisationHighabundance ofpredatorsLow abundanceof predatorsStrongleadershipWeakleadershipObstaclesPresentDisturbedcatchmentObstacles absentUndisturbedcatchmentSucessfulpreviousexperienceUnsuccessfulexperiencePooraccessibilityGoodaccessibilityHigh demandfor freshwaterfishLow demandfor freshwaterfishTechnically feasiblereservoirsSocial-economicallyfeasible reservoirsSuitable reservoirs for CBFFig. 6.6 A simplified scheme for selecting suitable village reservoirs for the development ofculture-based fisheries (adopted from Jarchau et al . 2008)
118 U.S. Amarasinghe and T.T.T. Nguyenon the basis of technical and socioeconomic aspects. Figure 6.6 provides a simplifiedscheme for selecting suitable village reservoirs for the development of CBF.Two workshops on the application of research findings of the ACIAR-funded projectwere held in 2001 and 2003 to bring together all the stakeholder groups involvedin CBF. At these workshops, a number of crucial decisions pertaining to the popularizationof CBF in Sri Lanka, including legislative changes that are needed tofacilitate developments were arrived at and were subsequently implemented.Accordingly, it has been recognized that steps be taken to formalize and improvethe cooperation and links between aquaculture development authorities (i.e.,NAQDA) and the relevant government authorities responsible for water management(i.e., Department of Agrarian Development). It is also recognized that steps betaken to regularize CBF in minor irrigation reservoirs, under the AgrarianDevelopment Act (No. 47 of 2000), to provide a legal basis to the communitiesinvolved in CBF activities.A documentary film on the CBF in non-perennial reservoirs of Sri Lanka entitled,“Visitors at the Water’s edge” (Sinhalese: Wewata Amuththo Ewith ) was producedand presented to the Honorable Minister of Fisheries and Aquatic Resources onFebruary 10, 2006. This documentary film was telecasted in the national TV channel.This documentary film is presently being used by NAQDA as an extension material.The mechanisms of disseminating research findings to the rural communitieswere essentially through the AEOs who provide technical advice on stocking densitiesbased on the findings of research. Owing to the constraints associated withpacking, transport, and high production costs, stocking size is presently restrictedto about 5 cm. Currently, fish fingerlings are transported in oxygen-filled polythenebags, and hence, high-packing densities are impracticable.As the stocked fishes are harvested using seine nets at the end of the cultureperiod after the reservoir water level recedes during the dry season, it is necessaryto make the bottom of the reservoir free from obstacles to fishing in the deepest partwhere a puddle of water often remains during the harvesting season.6.6 CBF Knowledge Translated into PracticeIt is a common situation that scientific findings are not readily adopted by the topleveland mid-level government officials for varying reasons. In the ACIAR-fundedproject for the CBF development, efforts were made to address the issue of theknowledge gap between research and development during the planning phase of theproject, as a part of the influencing strategy in the project. As NAQDA is responsiblefor the CBF development in village reservoirs, the National ProjectCoordinating Chair was assigned to the Director General of NAQDA.The ADB funded “Aquatic Resources Development and Quality ImprovementProject” commenced in 2002 aimed at the development of inland fisheries in SriLanka, and the development of CBF as a major component. The findings of
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Sena S. De SilvaF. Brian DavyEditor
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Sena S. De Silva ●EditorsF.Brian
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ForewordWorld aquaculture has grown
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PrefaceWe are moving into a turbule
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Prefaceix• Provide a direction fo
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Contents1 Aquaculture Successes in
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Chapter 1Aquaculture Successes in A
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1 Aquaculture Successes in Asia: Co
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Chapter 2Recent Developments in Ric
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2 Recent Developments in Rice-Fish
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Chapter 3Shrimp Farmers in India: E
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3 Shrimp Farmers in India: Empoweri
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50 N.R. Umesh et al.GoalSUSTAINABLE
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52 N.R. Umesh et al.• The optimum
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54 N.R. Umesh et al.in five states
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56 N.R. Umesh et al.3.5.2.4 Facilit
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58 N.R. Umesh et al.3.7 Opportuniti
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60 N.R. Umesh et al.with similar ou
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62 N.R. Umesh et al.• Knowledge a
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64 N.R. Umesh et al.helping small f
Page 78 and 79: 66 N.R. Umesh et al.ReferencesFAO/N
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Page 96 and 97: Chapter 5Cage Fish Culture: An Alte
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168 B.O. Acosta and M.V. GuptaBox 8
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170 B.O. Acosta and M.V. GuptaFitzs
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Chapter 9The Role of Exotics in Chi
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9 The Role of Exotics in Chinese In
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188 S.S. De Silva et al.part of an
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190 S.S. De Silva et al.Box 10.1 A
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192 S.S. De Silva et al.other appro
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194 S.S. De Silva et al.• Effecti
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196 S.S. De Silva et al.Table 10.1
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198 S.S. De Silva et al.• Institu
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ContributorsBelen O. Acosta , BSc F
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Contributors203become more relevant
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Contributors205research on physiolo
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IndexAAcosta, B., 155Agrarian Devel
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Indexalternate rice fish farming, 2
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IndexKKanna meeting, of FOs, 112Kul
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IndexSSchizothorax spp. (Asla), 91,
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Sena S. De SilvaF. Brian DavyEditor
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