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

More documents

Recommendations

Info

6 Enhancing Rural Farmer Income through Fish Production11580p > 0.05Price per kg (Rs.)60402000 5000 10000 15000 20000 25000Total harvest (kg)Fig. 6.4 Scatter diagram showing the relationship between fish price and harvests as the sites(Mr. M.G. Kularatne, pers. comm.).Fish farmers(FO/AMC)80% 07%13%Whole sellerMobile retailer(Bicycle/Motorcyclist)Mobile70% 10% retailer 06%01%Urban marketretail sellersDistant consumer(86%)Villageconsumer(14%)Fig. 6.5 Marketing channels for CBF produce in Sri Lanka (Mr. M.G. Kularatne, pers. comm.)
116 U.S. Amarasinghe and T.T.T. NguyenAs the wholesalers buy the major proportion of the harvest (86%) packed in ice totransport to distant markets in lorries, and at the present pace of development ofCBF, marketing has not been a problem. However, at the full-scale development ofCBF, there is a possibility that markets could be flooded (De Silva 1988) . Hence,staggered harvesting, extended over 2–3 months toward the end of the cultureperiod before the reservoir gets dry, to prevent gluts and development of postharvesttechnology for value addition and increasing shelf-life, should beconsidered.6.5.2 Dissemination of Major Research FindingsThe strategy for CBF development requires selection of suitable reservoirs for thedevelopment of CBF and organization of aquaculture committees within the ruralcommunities, in consultation with farmer communities. The outcome of theACIAR-funded project included the following:• Determination of effective area of seasonal tanks for the organising of CBF onthe basis of information published in the data books for the village irrigationschemes of Sri Lanka, ministry of agriculture and land, Department of AgrarianDevelopment.• Determination of optimal stocking densities and species combinations. Theoptimal SD for the development of CBF in seasonal reservoirs was determinedfrom a regression relationship (i.e., a second-order curve) between the CBFyield and SD, assuming that SD has the major influence on the CBF harvest.Accordingly, optimal SD was found to be 3,500 fingerlings per ha. Here, thearea of the seasonal reservoirs should be the effective area (i.e., 50% of the areaat FSL). The reported reservoir area (Anon 2000) , which is underestimated andis about half of the area at FSL, can therefore be taken to be approximately asthe effective area for CBF. Although it is a fact that the species combination forstocking has to be determined inter alia on the basis of the biological productivityand availability of different habitat types for various fish species, for extensionpurposes at the field level, general guidelines are needed on the appropriatespecies combination. Hence, the following species combination can be adoptedfor stocking (Wijenayake et al. 2005, 2007 ):• 30% Common carp and mrigal• 30% Bighead carp/Catla• 30% Rohu• 10% Nile tilapiaGIFT strain of Nile tilapia was not found to be superior to non GIFT strains, andhence, the use of GIFT strain for CBF is not advocated (Wijenayake et al. 2007).• Criteria for the selection of suitable reservoirs for the development of CBF: Thesuitability of the seasonal reservoirs for the development of CBF can be assessed
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 ...

Create successful ePaper yourself

Delete template?

Save as template?