Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea

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	Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea
	Wang Xuehui ; Qiu Yongsong ; Du Feiyan ; Lin Zhaojin ; Sun Dianrong ; Huang Shuolin ; Du FY(杜飞雁)
刊名	http://dx.doi.org/10.1007/s00343-012-1017-y
	2012-01
关键词	WEIGHT-LENGTH RELATIONSHIPS GROWTH-PARAMETERS
英文摘要	Chinese Ministry of Agriculture [070404]; Social Commonwealth Research National Institute [2009TS08, 2010YD10]; Length-frequency data of eight commercial fish species in the Beibu Gulf (Golf of Tonkin), northern South China Sea, were collected during 2006-2007. Length-weight relationships and growth and mortality parameters were analyzed using FiSAT II software. Five species had isometric growth, two species had negative allometric growth, and one species had positive allometric growth. Overall, the exploitation rates of the eight species were lower in 2006-2007 than in 1997-1999: for four species (Saurida tumbil, Saurida undosquamis, Argyrosomus macrocephalus, and Nemipterus virgatus) it was lower in 2006-2007 than in 1997-1999, for two species (Parargyrops edita and Trichiurus haumela) it remained the same, and for the other two species (Trachurus japonicus and Decapterus maruadsi) it was higher in 2006-2007 than in 1997-1999. The exploitation rates might have declined because of the decline in fishing intensity caused by high crude oil prices. The optimum exploitation rate, estimated using Beverton-Holt dynamic pool models, indicated that although fishes in the Beibu Gulf could sustain high exploitation rates, the under-size fishes at first capture resulted in low yields. To increase the yield per recruitment, it is more effective to increase the size at first capture than to control fishing effort.
语种	英语
出版者	CHIN J OCEANOL LIMN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87844]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Wang Xuehui,Qiu Yongsong,Du Feiyan,et al. Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea[J]. http://dx.doi.org/10.1007/s00343-012-1017-y,2012.
APA	Wang Xuehui.,Qiu Yongsong.,Du Feiyan.,Lin Zhaojin.,Sun Dianrong.,...&杜飞雁.(2012).Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea.http://dx.doi.org/10.1007/s00343-012-1017-y.
MLA	Wang Xuehui,et al."Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea".http://dx.doi.org/10.1007/s00343-012-1017-y (2012).