Age and growth changes and population dynamics of the black pomfret (Parastromateus niger) and the frigate tuna (Auxis thazard thazard), in the Taiwan Strait

CORC > 厦门大学 > 海洋环境－已发表论文

	Age and growth changes and population dynamics of the black pomfret (Parastromateus niger) and the frigate tuna (Auxis thazard thazard), in the Taiwan Strait
	Yu Tao ; Chen Mingru ; Du Jianguo ; Lu Zhenbin ; Yang Shengyun ; Chen MR(陈明茹) ; Yang SY(杨圣云)
刊名	http://dx.doi.org/10.3856/vol40-issue3-fulltext-13
	2012
英文摘要	National Natural Science Foundation of China [31101902]; Scientific Research Foundation of Third Institute of Oceanography, SOA [2011006]; Marine Science Foundation for Young Scientist [2011143]; Marine Public Welfare Project of China [201005012, 200905019-6, 201105015]; The age and growth and population dynamics of the black pomfret, Parastromateus niger and the frigate tuna, Auxis thazard thazard were studied from specimens collected monthly in the Taiwan Strait from April 2005 to March 2006. With five age groups of each, the dominant black pomfret was one year, while frigate tuna was two years. The total mortality coefficient (Z) and the fishing mortality (F) of the black pomfret were at high levels, the exploitation ratio (E) was over 0.5, and the number of captured juvenile fishes showed that the stock of black pomfret in this area was overexploited and improper fishing gear was utilized. Compared with previous studies, the maximum and mean fork length, body weight and age of the two fishes declined gradually, the populations were younger in age and smaller in size. The growth coefficient k increased and age at the inflexion point of weight t(r) was younger than before. The smaller change of the fork length at first maturity of the two fishes has indicated a more vulnerable fishery ecosystem in this area. Therefore, in addition to the traditional fishery management approach, such as taking the minimum length into consideration, ecosystem approach to fisheries management (EAF) should be taken to improve the practical fishing management, including conserving the small pelagic fishery population in order to achieve the sustainable fishing of the stocks.
语种	英语
出版者	LAT AM J AQUAT RES
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/87753]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Yu Tao,Chen Mingru,Du Jianguo,et al. Age and growth changes and population dynamics of the black pomfret (Parastromateus niger) and the frigate tuna (Auxis thazard thazard), in the Taiwan Strait[J]. http://dx.doi.org/10.3856/vol40-issue3-fulltext-13,2012.
APA	Yu Tao.,Chen Mingru.,Du Jianguo.,Lu Zhenbin.,Yang Shengyun.,...&杨圣云.(2012).Age and growth changes and population dynamics of the black pomfret (Parastromateus niger) and the frigate tuna (Auxis thazard thazard), in the Taiwan Strait.http://dx.doi.org/10.3856/vol40-issue3-fulltext-13.
MLA	Yu Tao,et al."Age and growth changes and population dynamics of the black pomfret (Parastromateus niger) and the frigate tuna (Auxis thazard thazard), in the Taiwan Strait".http://dx.doi.org/10.3856/vol40-issue3-fulltext-13 (2012).