Growth and Survival of Pearl OysterPinctada maximaSpat Reared under Different Environmental Conditions
| Autor: | Yuewen Deng, Shao Fu, Xiaodong Du, Feilong Liang, Shaohe Xie |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Journal of Shellfish Research. 32:675-679 |
| ISSN: | 1943-6319 0730-8000 |
| DOI: | 10.2983/035.032.0308 |
| Popis: | To understand the influences of environmental conditions on the performance of pearl oyster spat, we conducted four experiments to evaluate separately the effects of salinity (21, 24, 27, and 30), diet (Isochrysis zhanjiangensis, Platymonas subcordiformis, Chlorella; 50% I. zhanjiangensis/50% P. subcordiformis, 50% I. zhanjiangensis/50% Chlorella, and 50% P. subcordiformis/50% Chlorella), diet availability (high, medium and low), and rearing site (hatchery and sea) on the growth and survival of pearl oyster Pinctada maxima spat. Results showed that environmental conditions exerted significant effects on the growth of P. maxima spat. Salinity and rearing site also had significant effects on survival, but no significant differences were observed in terms of survival between the diet and diet availability treatments. Growth declined with decrease in salinity. Spat reared at high salinities (30 and 27) showed larger shell length growth and greater survival than those at low salinities (24 and 21). Sp... |
| Databáze: | OpenAIRE |
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