Current status of small yellow croaker resources in the southern Yellow Sea and the East China Sea

doi:10.1007/s00343-011-0182-8

	Current status of small yellow croaker resources in the southern Yellow Sea and the East China Sea
	Lin Longshan 1,2,3; Liu Zunlei 3; Jiang Yazhou 3; Huang Wei 4; Gao Tianxiang 1
	2011-05-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	29 期号:3 页码:547-555
文章类型	Article
摘要	We used data from bottom trawl surveys to study the factors influencing the abundance of small yellow croaker, Larimichthys polyactis, in the southern Yellow Sea (SYS) and the East China Sea (ECS). The resource density index (RDI) was generally higher in summer and autumn than in spring and winter. RDIs were also significantly greater in the SYS than in the ECS in summer and autumn. The bottom water salinity and depth of spatial distribution of small yellow croaker was similar between the two areas in summer, but different in other seasons. Regression analysis suggested that environmental factors such as bottom water temperature, salinity, and depth influenced the RDIs in summer in these areas. Growth condition factor (GCF) in the two areas varied monthly and the croaker in the SYS grew more slowly than those in the ECS. This was likely due to the low bottom temperature of the Yellow Sea Cold Water Mass in summer and autumn or to higher human fishing pressure in the ECS. To ensure sustainable utilization of the croaker stocks in these regions, we recommend reducing the fishing intensity, increasing the cod-end mesh size, and improving the protection of juveniles.; We used data from bottom trawl surveys to study the factors influencing the abundance of small yellow croaker, Larimichthys polyactis, in the southern Yellow Sea (SYS) and the East China Sea (ECS). The resource density index (RDI) was generally higher in summer and autumn than in spring and winter. RDIs were also significantly greater in the SYS than in the ECS in summer and autumn. The bottom water salinity and depth of spatial distribution of small yellow croaker was similar between the two areas in summer, but different in other seasons. Regression analysis suggested that environmental factors such as bottom water temperature, salinity, and depth influenced the RDIs in summer in these areas. Growth condition factor (GCF) in the two areas varied monthly and the croaker in the SYS grew more slowly than those in the ECS. This was likely due to the low bottom temperature of the Yellow Sea Cold Water Mass in summer and autumn or to higher human fishing pressure in the ECS. To ensure sustainable utilization of the croaker stocks in these regions, we recommend reducing the fishing intensity, increasing the cod-end mesh size, and improving the protection of juveniles.
关键词	Larimichthys Polyactis Biology Ecology Akaike Information Criterion (Aic)
学科领域	Marine & Freshwater Biology ; Oceanography
DOI	10.1007/s00343-011-0182-8
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000292558100007
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/11653
专题	海洋生态与环境科学重点实验室
作者单位	1.Ocean Univ China, Qingdao 266003, Peoples R China 2.SOA, Inst Oceanog 3, Xiamen 361005, Peoples R China 3.Chinese Acad Fishery Sci, E China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Lin Longshan,Liu Zunlei,Jiang Yazhou,et al. Current status of small yellow croaker resources in the southern Yellow Sea and the East China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2011,29(3):547-555.
APA	Lin Longshan,Liu Zunlei,Jiang Yazhou,Huang Wei,&Gao Tianxiang.(2011).Current status of small yellow croaker resources in the southern Yellow Sea and the East China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,29(3),547-555.
MLA	Lin Longshan,et al."Current status of small yellow croaker resources in the southern Yellow Sea and the East China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 29.3(2011):547-555.

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