Journal
AQUACULTURE INTERNATIONAL
Volume 19, Issue 2, Pages 313-321Publisher
SPRINGER
DOI: 10.1007/s10499-010-9399-3
Keywords
Scylla paramamosain; Nursery; Facility; Stocking density; Survival; Cannibalism
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Funding
- National High Technology Research & Development Program of China [2006AA10A4060, 2002AA603013]
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For the improvement of nursery culture of the mud crab Scylla paramamosain, a special nursery facility was purposely designed and built. This facility consists of nursery ponds (areas of 20, 50, and 120 m(2), respectively) and a seed collecting pond connected to each nursery pond. There were 140 nursery facility units in operation for large-scale juvenile crab production. A series of experiments were carried out using the facility to investigate the effects of the age of megalopae, stocking density, and culture duration of both megalopae and first-stage crabs on the survival of megalopae and early juveniles of S. paramamosain. The results showed that when megalopae were stocked at a density between 3,000 and 5,000 ind m(-2) and reared to reach the first-stage crabs, a survival rate of up to 50% could be achieved. When the first-stage juvenile crabs were stocked at a density between 2,000 and 3,000 ind m(-2), their survival was more than 50% after 14 days of culture.
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