全球智库信息集成服务系统(G2TT): Individual growth variation and its relationship with survival in juvenile Pacific oysters, Crassostrea Gigas (Thunberg).

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来源类型	Article
规范类型	其他
DOI	10.1023/B:AQUI.0000004189.49517.c0
	Individual growth variation and its relationship with survival in juvenile Pacific oysters, Crassostrea Gigas (Thunberg).
	Boudry P; Collet B; McCombie H; Ernande B; Morand B; Heurtebise S; Gerard A
发表日期	2003
出处	Aquaculture International 11 (5): 429-448
出版年	2003
语种	英语
摘要	In order to study individual growth variability and its relationship with survival in juvenile Crassostrea gigas, parental oysters were sampled at four sites located along the French Atlantic coast and bred under controlled hatchery conditions. Four groups of larvae were obtained by crossing five males and five females from each of the four sites, and a fifth group by crossing these 20 males and 20 females together in a pool. Larvae were reared under conditions allowing the maintenance of a maximum variability of size and gave five experimental groups. Oysters were individually monitored for growth and survival from 3 to 10 months after fertilization. The individual growth performances were relatively stable over time and no noticeable compensation for growth occurred. Early growth rate was a very good predictor of size later in life: 66% of variation in the live weight at 10 months could be explained by variation in the initial growth rate calculated between 3 and 4 months. A significant group effect was observed on survival and on growth rate. Mortality mostly occurred between 3 and 5 months and appeared to affect the slow-growing animals more. However, two groups can be distinguished among those which died during the experimental period, one which showed a decrease in weight and the other whose growth was similar to surviving oysters. These results are discussed in the light of usual oyster farming practices and selective breeding.
主题	Adaptive Dynamics Network (ADN)
关键词	Aquaculture Crassostrea Gigas Growth Oysters Survival
URL	http://pure.iiasa.ac.at/id/eprint/6831/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/128225
推荐引用方式 GB/T 7714	Boudry P,Collet B,McCombie H,et al. Individual growth variation and its relationship with survival in juvenile Pacific oysters, Crassostrea Gigas (Thunberg).. 2003.