Culture of Macrobrachium rosenbergii (De Man 1879) in experimental cages in a freshwater eutrophic lake at different stocking densities
MetadataShow full item record
Cited times in Scopus
Macrobrachium rosenbergii (de Man 1879) juveniles (0.4 g) were cultured in experimental cages (L × W × H: 2.5 × 1 × 1 m) in Laguna de Bay, the largest lake in the Philippines. The following stocking densities at four replicates each were used: 15, 30, 60 and 90 prawns m−2 of cage bottom. The mean sizes at harvest after 5 months of culture ranged from 14.3 g for the highest stocking density to 26.3 g for the lowest. The mean size at harvest, daily growth rate and size class distribution were significantly influenced by stocking density, with those at the lowest stocking density showing significantly better growth and overall proportion of larger prawns. Heterogeneous individual growth (HIG) was fairly evident in all treatments. The percentage of blue-clawed males was not influenced by treatment but the mean weight was significantly higher in the lower stocking densities. Both the percentage and mean weight of berried females were significantly higher in the lowest stocking density. Survival was the highest in the lower stocking densities (55.3%, 54.0%, 52.7% and 36.9% for 15, 30, 60 and 90 prawns m−2 respectively). Feed conversion ratio (FCR) improved with decreasing stocking density, ranging from 2.1 to 3. As expected, yield per cropping increased with stocking density and ranged from 450 to 1089 g m−2 yr−1 of actual cage area. Production values obtained in the cage cultured M. rosenbergii were comparable to or even higher than those reported from pond culture, given that the stocking densities used in this study were generally higher than in ponds. The results show that the farming of M. rosenbergii in cages in lakes is a viable alternative to pond culture and has the potential of improve aquaculture production in lakeshore fish farming communities.
Suggested CitationCuvin-Aralar, M. L., Aralar, E. V., Laron, M. A., & Rosario, W. (2007). Culture of Macrobrachium rosenbergii (De Man 1879) in experimental cages in a freshwater eutrophic lake at different stocking densities.
Growth rate; Stocking density; Intensive culture; Eutrophic lakes; Cage culture; Pond culture; Freshwater aquaculture; Fish culture; Cages; Macrobrachium rosenbergii; Philippines; Philippines, Luzon I., Laguna de Bay; Giant freshwater prawn; Lake culture; Time; Floating cage set-up; Shirred net shelter; Stone sinker; Feeding tray; Weight class; Body weight; Sex; Floating cage; Survival percentage; Water quality parameter; Salinity; Water depth; Secchi disc depth; Temperature
- Journal Articles 
Showing items related by title, author, creator and subject.
Southeast Asian Fisheries Development Center, Aquaculture Department; Taytay sa Kauswagan Inc.; Development Bank of the Philippines (DBP); Norwegian Agency for Development Cooperation (Aquaculture Department, Southeast Asian Fisheries Development Center, 2013-07)Milkfish (Chanos chanos, or bangus) culture is the largest finfish aquaculture industry in the Philippines and continues to be a top aquaculture commodity primarily because it is easy to culture and can be grown in a wide ...