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

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	The Yellow Sea cold bottom water - an oversummering site for Calanus sinicus (Copepoda, Crustacea)
	Wang, R; Zuo, T; Wang, K
刊名	JOURNAL OF PLANKTON RESEARCH
	2003-02-01
卷号	25 期号:2 页码:169-183
关键词	Finmarchicus
ISSN号	0142-7873
文献子类	Article
英文摘要	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.
学科主题	Marine & Freshwater Biology ; Oceanography
语种	英语
WOS记录号	WOS:000181403800004
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/2799]
专题	海洋研究所_海洋生态与环境科学重点实验室海洋研究所_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.