The Yellow Sea cold bottom water - an oversummering site for Calanus sinicus (Copepoda, Crustacea)

	The Yellow Sea cold bottom water - an oversummering site for Calanus sinicus (Copepoda, Crustacea)
	Wang, R; Zuo, T; Wang, K
	2003-02-01
发表期刊	JOURNAL OF PLANKTON RESEARCH
ISSN	0142-7873
卷号	25 期号:2 页码:169-183
文章类型	Article
摘要	The vertical distribution and stage-specific abundance of Calanus sinicus were investigated on three key transects in the southern Yellow Sea and the northern East China Sea in August 1999. The results showed that in summer C. sinicus shrank its distribution area to the central cold (less than or equal to10degreesC) bottom water in the Yellow Sea, i.e. the Yellow Sea Cold Bottom Water, remaining in high abundance (345.7 ind m(-3)). In the northern East China Sea on a transect from the mouth of the Yangtze River to the Okinawa trench, only a few individuals appeared in the inner side and none had been found either in the upper layer or in the deep layer of the outer shelf area. The population of C. sinicus in YSCBW consisted of mainly adults (46.83%) and C5 (37.41%). C1-C4 only accounted for 15.76%. The low proportion of the earlier copepodite stages and the high female:male ratio (11.39) indicated that the reproduction of C. sinicus in YSCBW was at a very low level due to the low temperature and low food concentration. It is concluded that the dramatic decrease of C. sinicus population in the shelf area of China seas in summer is caused by the shrinkage of its distribution area and the YSCBW served as an oversummering site.; The vertical distribution and stage-specific abundance of Calanus sinicus were investigated on three key transects in the southern Yellow Sea and the northern East China Sea in August 1999. The results showed that in summer C. sinicus shrank its distribution area to the central cold (less than or equal to10degreesC) bottom water in the Yellow Sea, i.e. the Yellow Sea Cold Bottom Water, remaining in high abundance (345.7 ind m(-3)). In the northern East China Sea on a transect from the mouth of the Yangtze River to the Okinawa trench, only a few individuals appeared in the inner side and none had been found either in the upper layer or in the deep layer of the outer shelf area. The population of C. sinicus in YSCBW consisted of mainly adults (46.83%) and C5 (37.41%). C1-C4 only accounted for 15.76%. The low proportion of the earlier copepodite stages and the high female:male ratio (11.39) indicated that the reproduction of C. sinicus in YSCBW was at a very low level due to the low temperature and low food concentration. It is concluded that the dramatic decrease of C. sinicus population in the shelf area of China seas in summer is caused by the shrinkage of its distribution area and the YSCBW served as an oversummering site.
关键词	Finmarchicus
学科领域	Marine & Freshwater Biology ; Oceanography
收录类别	SCI
语种	英语
WOS记录号	WOS:000181403800004
引用统计	被引频次：108[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/337002/2798
专题	海洋生态与环境科学重点实验室海洋环流与波动重点实验室
作者单位	Chinese Acad Sci, Key Lab Marine Ecol & Environm Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, R,Zuo, T,Wang, K. The Yellow Sea cold bottom water - an oversummering site for Calanus sinicus (Copepoda, Crustacea)[J]. JOURNAL OF PLANKTON RESEARCH,2003,25(2):169-183.
APA	Wang, R,Zuo, T,&Wang, K.(2003).The Yellow Sea cold bottom water - an oversummering site for Calanus sinicus (Copepoda, Crustacea).JOURNAL OF PLANKTON RESEARCH,25(2),169-183.
MLA	Wang, R,et al."The Yellow Sea cold bottom water - an oversummering site for Calanus sinicus (Copepoda, Crustacea)".JOURNAL OF PLANKTON RESEARCH 25.2(2003):169-183.

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