Culture of Macrobrachium rosenbergii (De Man 1879) in experimental cages in a freshwater eutrophic lake at different stocking densities
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Date
2007Page views
3,399Subject
growth rate
stocking density
intensive aquaculture
eutrophic lakes
cage culture
pond culture
time
freshwater aquaculture
fish culture
cages
body weight
sex
salinity
water depth
temperature
Macrobrachium rosenbergii
Philippines
Philippines, Luzon I., Laguna de Bay
Giant freshwater prawn
Lake culture
Floating cage set-up
Shirred net shelter
Stone sinker
Feeding tray
Weight class
Floating cage
Survival percentage
Water quality parameter
Secchi disc depth

stocking density

intensive aquaculture

eutrophic lakes

cage culture

pond culture

time

freshwater aquaculture

fish culture

cages

body weight

sex

salinity

water depth

temperature

Macrobrachium rosenbergii

Philippines

Philippines, Luzon I., Laguna de Bay
Giant freshwater prawn
Lake culture
Floating cage set-up
Shirred net shelter
Stone sinker
Feeding tray
Weight class
Floating cage
Survival percentage
Water quality parameter
Secchi disc depth
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Abstract
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 Citation
Cuvin-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. Aquaculture Research , 38(3), 288-294. https://doi.org/10.1111/j.1365-2109.2007.01667.x
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ArticleISSN
1355-557XCollections
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