We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Effect of Stocking Density on Survival, Growth and Production of Indigenous Labeo Calbasu (hamilton, 1822) in Nursery Ponds
Summary
Experiments on nursery rearing of Labeo calbasu fish in Bangladesh found that optimal stocking densities significantly improved survival and growth, providing practical guidance for freshwater aquaculture.
Effect of stocking densities on the growth, survival and production of kalibaus, Labeo calbasu fry and fingerlings were tested in a single-stage nursery rearing system. The experiment was conducted for a rearing period of six weeks in nine earthen nursery ponds having an area of 0.028 ha each. Four-day-old hatchlings stocked at 0.6 million/ha were designated as treatment T , 1 0.8 million/ha as treatment T and 1.0 million/ha as treatment T . At stocking, all hatchlings were 2 3 of the same age with a mean length and weight of 6.50±0.01cm and weight of 0.007±0.00g, respectively. Physico-chemical parameters and plankton populations were at the optimum level for the culture period. Highest weight gain was observed in treatment T and lowest in treatment 1 T Final length, final weight and survival of fingerlings also followed the same trends as weight 3. gain. Fingerlings in treatment T produced significantly higher specific growth rate than treatment 1 T and T . Feed conversion ratio was significantly higher in treatment T followed by T and T . 2 3 1 2 3 Significantly higher number of fingerlings was produced in treatment T than in T and T . Overall, 3 2 3 highest growth, survival and net benefits of fingerlings were obtained in the treatment T1 at a density of 0.6 million hatchlings/ha. Therefore, of the three stocking densities, 0.6 million hatchling/ha appears to be the most suitable stocking density for nursing and rearing of L. calbasu fry and fingerlings.
Sign in to start a discussion.
More Papers Like This
Indigenous Freshwater Ichthyofauna in the Dhanu River and Surrounding Wetlands of Bangladesh: Species Diversity, Availability, and Conservation Perspectives
Researchers documented 91 indigenous fish species across 29 families in the Dhanu River and surrounding wetlands of Bangladesh, compiling detailed data on habitat preferences, conservation status, population trends, and threats. The study provides a baseline checklist to support freshwater biodiversity conservation in this data-poor region.
Tilapia nursery stocking densities in a chemoautotrophic biofloc system
Different nursery stocking densities of tilapia in a chemoautotrophic biofloc system using only inorganic carbon were evaluated, assessing effects on water quality, growth performance, and health indicators to optimize production efficiency during the nursery phase.
Microplastics in freshwater wild and farmed fish species of Bangladesh
Researchers evaluated microplastic contamination in freshwater wild and farmed fish species across multiple rivers and farms in Bangladesh, comparing contamination levels between wild-caught and aquaculture-raised fish of the same species.
Maintenance of local snakehead postlarva Channa sp. on different containers in domestication framework
Domestication trials of wild-caught snakehead fish (Channa sp.) from West Aceh showed that aquarium containers produced the highest survival rates and weight gain for postlarvae, while fiber containers yielded the best length growth. The study confirmed that local snakehead fish can be successfully domesticated to reduce pressure on wild populations.
Effects of Stocking Density on Intestinal Health of Juvenile Micropterus salmoides in Industrial Aquaponics
Researchers studied the effects of stocking density on intestinal health in juvenile largemouth bass raised in industrial aquaponics systems. The study found that a moderately higher stocking density actually improved growth performance, intestinal morphology, and antioxidant enzyme activity during the juvenile developmental phase.