Success Stories In Asian Aquaculture - Library - Network of ...

More documents

Recommendations

Info

6 Enhancing Rural Farmer Income through Fish Production119ACIAR-funded project on fish fingerling rearing in ponds and net cages throughcommunity participation, organization of aquaculture committees of FOs throughparticipatory rural appraisal approaches, and introduction of effective extensionmechanism for CBF development have therefore been applied directly in the activitiesof ADB-funded project. The number of net cages or ponds that has to be maintainedfor stocking a certain extent of reservoirs was determined on the basis ofoptimal stocking densities, survival rates, and optimal period of culture (Fig. 6.7 ;Pushpalatha 2006) . As different parties are involved in induced breeding, fingerlingrearing, and stocking in village reservoirs, linking of these parties is necessary sothat effective extension mechanism is the key to the success of the sustainability ofCBF in Sri Lanka.The rural communities engaged in CBF are essentially rice paddy farmers, sothat they are not unemployed. However, as mentioned earlier, between the twolaborintensive peak paddy cultivation seasons, the farmers have sufficient time tobe mobilized to CBF activities. As such, the CBF has provided them an additionalsource of income (See Plate 6.1 and Box 6.1). All village reservoirs, which wereutilized in the ACIAR-funded study, continue to be engaged in CBF by the respectivefarming communities, and the project has also stimulated neighboring waterbodies to uptake CBF. As the word has spread, other farming communities haverealized that the CBF activities are profitable ventures. Consequently, in 2006–2007culture cycle, 136 rural communities throughout the country have stocked seasonalreservoirs (details in Table 6.4 ).Culture-based fisheries in village reservoirsOptimal SD = 2700 fingerlings/ha(27,000 fingerlings needed for 10 ha reservoir)Number of cages needed toproduce 27,000 fingerlings - 07Number of ponds needed toproduce 27,000 fingerlings - 05Cage culture (Rohu, C. carpio)Cage size – 12.5 m 3Optimal SD = 400 m -3Survival – 77%Culture period – 77 daysNo of fingerlings per cage –400x12.5x0.77 = 3850 fingerlingsPond culture (Rohu, C. carpio)Pond size – 250 m 2Optimal SD – 40 m -2Survival – 60%Culture period – 65 daysNo of fingerlings per pond –40x250x0.6 = 6000Fig. 6.7 The number of net cages or ponds to be maintained to stock 10 ha of reservoirs. SDstocking density (Pushpalatha 2006)
120 U.S. Amarasinghe and T.T.T. NguyenPlate 6.1 CBF harvest in Dozer wewa, Sri Lanka in 2003Box 6.1 The CBF Development in Dozer wewa (Kukulkatuwa wewa),Sri LankaIn the late 2002, the research team of the University of Kelaniya and NAQDAvisited several reservoirs and participated in the Kanna meetings of the FOs,the community meetings held at the beginning of the cropping season, whichis the major event in the village. At these meetings, the ACIAR-funded projecton the development of CBF through community participation was introducedto the FOs. In Dozer wewa (or Kukulkatuwa wewa) (13.58 ha;Maximum depth 3 m; 06°26 ¢ 37.54″N, 81°19 ¢ 17.34″E), all the agriculturalfarmers, except one (Mr. Karunadasa) showed their unwillingness to adoptCBF. Mr. Karunadasa, perhaps, owing to his entrepreneurship attitude,showed his willingness to adopt CBF in Dozer wewa. Accordingly, he hasstocked the reservoir with the courtesy of the FO of this reservoir in December2002. The species combination used was 30% common carp, 40% bigheadcarp, 20% rohu/mrigal, and 10% freshwater prawn. The stocking density was2,165 fingerlings per ha. The total number of fingerlings stocked was 29,500and the cost of fingerlings was Rs. 44,250. The ACIAR-funded reservoirfisheries project paid 50% of the fingerling cost. The composition of theharvest (in kg per ha) at the end of the culture period of about 9 months inSeptember 2003 was as follows:(continued)
Page 1 and 2:
Sena S. De SilvaF. Brian DavyEditor
Page 3 and 4:
Sena S. De Silva ●EditorsF.Brian
Page 5 and 6:
ForewordWorld aquaculture has grown
Page 7 and 8:
PrefaceWe are moving into a turbule
Page 9 and 10:
Prefaceix• Provide a direction fo
Page 11 and 12:
Contents1 Aquaculture Successes in
Page 13 and 14:
Chapter 1Aquaculture Successes in A
Page 15 and 16:
1 Aquaculture Successes in Asia: Co
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Chapter 2Recent Developments in Ric
Page 29 and 30:
2 Recent Developments in Rice-Fish
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Chapter 3Shrimp Farmers in India: E
Page 55 and 56:
3 Shrimp Farmers in India: Empoweri
Page 57 and 58:
Page 59:
Page 62 and 63:
50 N.R. Umesh et al.GoalSUSTAINABLE
Page 64 and 65:
52 N.R. Umesh et al.• The optimum
Page 66 and 67:
54 N.R. Umesh et al.in five states
Page 68 and 69:
56 N.R. Umesh et al.3.5.2.4 Facilit
Page 70 and 71:
58 N.R. Umesh et al.3.7 Opportuniti
Page 72 and 73:
60 N.R. Umesh et al.with similar ou
Page 74 and 75:
62 N.R. Umesh et al.• Knowledge a
Page 76 and 77:
64 N.R. Umesh et al.helping small f
Page 78 and 79:
66 N.R. Umesh et al.ReferencesFAO/N
Page 80 and 81: 68 H. Kongkeo and F.B. DavyPlate 4.
Page 82 and 83: 70 H. Kongkeo and F.B. DavyTable 4.
Page 84 and 85: 72 H. Kongkeo and F.B. Davytrate th
Page 86 and 87: 74 H. Kongkeo and F.B. Davylack of
Page 88 and 89: 76 H. Kongkeo and F.B. Davyby incre
Page 90 and 91: 78 H. Kongkeo and F.B. Davysoil ana
Page 92 and 93: 80 H. Kongkeo and F.B. Davy• Deva
Page 94 and 95: 82 H. Kongkeo and F.B. DavyTable 4.
Page 96 and 97: Chapter 5Cage Fish Culture: An Alte
Page 98 and 99: 5 Cage Fish Culture: An Alternative
Page 114 and 115: Chapter 6Enhancing Rural Farmer Inc
Page 116 and 117: 6 Enhancing Rural Farmer Income thr
Page 142 and 143: Chapter 7Striped Catfish Aquacultur
Page 144 and 145: 7 Striped Catfish Aquaculture in Vi
Page 160 and 161: 150 B.O. Acosta and M.V. Gupta8.1 I
Page 162 and 163: 152 B.O. Acosta and M.V. Gupta8.2 W
Page 164 and 165: 154 B.O. Acosta and M.V. GuptaCente
Page 166 and 167: 156 B.O. Acosta and M.V. GuptaPlate
Page 168 and 169: 158 B.O. Acosta and M.V. GuptaThe I
Page 170 and 171: 160 B.O. Acosta and M.V. Guptainto
Page 172 and 173: 162 B.O. Acosta and M.V. Gupta8.6.2
Page 174 and 175: 164 B.O. Acosta and M.V. GuptaIn Th
Page 176 and 177: 166 B.O. Acosta and M.V. Guptafarme
Page 178 and 179: 168 B.O. Acosta and M.V. GuptaBox 8
Page 180 and 181:
170 B.O. Acosta and M.V. GuptaFitzs
Page 182 and 183:
Chapter 9The Role of Exotics in Chi
Page 184 and 185:
9 The Role of Exotics in Chinese In
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
188 S.S. De Silva et al.part of an
Page 198 and 199:
190 S.S. De Silva et al.Box 10.1 A
Page 200 and 201:
192 S.S. De Silva et al.other appro
Page 202 and 203:
194 S.S. De Silva et al.• Effecti
Page 204 and 205:
196 S.S. De Silva et al.Table 10.1
Page 206 and 207:
198 S.S. De Silva et al.• Institu
Page 208 and 209:
ContributorsBelen O. Acosta , BSc F
Page 210 and 211:
Contributors203become more relevant
Page 212 and 213:
Contributors205research on physiolo
Page 214 and 215:
IndexAAcosta, B., 155Agrarian Devel
Page 216 and 217:
Indexalternate rice fish farming, 2
Page 218 and 219:
IndexKKanna meeting, of FOs, 112Kul
Page 220 and 221:
IndexSSchizothorax spp. (Asla), 91,
Page 222:
Sena S. De SilvaF. Brian DavyEditor
show all

Success Stories In Asian Aquaculture - Library - Network of ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?