期刊
AQUACULTURE RESEARCH
卷 48, 期 12, 页码 5699-5706出版社
WILEY
DOI: 10.1111/are.13392
关键词
high-density; larval culture; larval feeding behaviour; oyster larva; Recirculating aquaculture system
类别
资金
- Postdoctoral Innovation Project Special Funds of Shandong Province [201402002]
- 56th China Postdoctoral Science Foundation [2014M561975]
- earmarked fund for Modern Agro-industry Technology Research System [CARS-48]
The major objective of this study was to introduce a newly designed recirculating aquaculture system (RAS) for oyster (Crassostrea angulata) larval culture. The system includes a culture tank, a suspended circular inlet-pipe, an upwelling aeration pipe, combined banjo sieves and a bioreactor chamber containing microalgae life keeping installation. The system was designed to resolve three problems: (i) stranding of larvae caused by water level changes and aeration, (ii) physical clogging of the screens and also (iii) deterioration of diet microalgae. The culture tank, banjo sieve size, water flow rate and light intensity for maintaining microalgae activity were all designed according to the pattern of larval movement and feeding behaviour. Results of this study showed the best average SGR for larval length was 6.36%/d (9.5m/d) and survival rate was 80%, with initial rearing density of 50 larvae/ml, indicating the problems above were fully resolved. Consequently, the system is fit for larval culture in mass production of oysters.
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