The relation between distribution of zooplankton and salinity in the Changjiang Estuary

doi:10.1007/s00343-008-0178-1

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	The relation between distribution of zooplankton and salinity in the Changjiang Estuary
	Gao Qian 1,2,3; Xu Zhaoli 1; Zhuang Ping 1
	2008-05-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	0254-4059
卷号	26 期号:2 页码:178-185
文章类型	Article
摘要	Seasonal netzplankton samples from stations in the Changjiang (Yangtze River) Estuary were collected from May, 2004 to February, 2005. The dominant species and their contribution to the total zooplankton abundance were determined. Moreover, the relationship between the salinity and abundance was studied with stepwise linear regression. During the whole year, the salinity was positively correlated with the abundance, while the temperature, negatively. Linear regression analysis showed also a high positive correlation with salinity for total abundance in August and November, while in February and May, no obvious relations were found. The most abundant community was composed of neritic and brackish-water species. The North Passage (NP) (salinity <5) was greatly diluted by freshwater while the North Branch (NB) was brackish water with salinity range of 12-28. Consequently, clear decline in abundance of zooplankton was along the estuarine haloclines from the maximum in the area of high salinity to the minimum in the limnetic zone. Total zooplankton abundance and biomass were lower in NP than the NB in all seasons. In short, the salinity influenced the abundance of each species of zooplankton, and ultimately determined the total abundance of zooplankton. Furthermore, a winter peak in the abundance existed, which might be caused by the flourishing of Sinocalanus sinensis, a widely distributed species in the Changjiang Estuary.; Seasonal netzplankton samples from stations in the Changjiang (Yangtze River) Estuary were collected from May, 2004 to February, 2005. The dominant species and their contribution to the total zooplankton abundance were determined. Moreover, the relationship between the salinity and abundance was studied with stepwise linear regression. During the whole year, the salinity was positively correlated with the abundance, while the temperature, negatively. Linear regression analysis showed also a high positive correlation with salinity for total abundance in August and November, while in February and May, no obvious relations were found. The most abundant community was composed of neritic and brackish-water species. The North Passage (NP) (salinity <5) was greatly diluted by freshwater while the North Branch (NB) was brackish water with salinity range of 12-28. Consequently, clear decline in abundance of zooplankton was along the estuarine haloclines from the maximum in the area of high salinity to the minimum in the limnetic zone. Total zooplankton abundance and biomass were lower in NP than the NB in all seasons. In short, the salinity influenced the abundance of each species of zooplankton, and ultimately determined the total abundance of zooplankton. Furthermore, a winter peak in the abundance existed, which might be caused by the flourishing of Sinocalanus sinensis, a widely distributed species in the Changjiang Estuary.
关键词	Salinity Changjiang (Yangtze River) Estuary Zooplankton Abundance Dominant Species
学科领域	Limnology ; Oceanography
DOI	10.1007/s00343-008-0178-1
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000256416000009
引用统计	被引频次：38[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/337002/5560
专题	实验海洋生物学重点实验室
作者单位	1.Chinese Acad Fisheries Sci, E China Sea Fisheries Res Inst, Ministry Agr China, Key & Open Lab Marine & Estuary Fisheries, Shanghai 200090, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100038, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Gao Qian,Xu Zhaoli,Zhuang Ping. The relation between distribution of zooplankton and salinity in the Changjiang Estuary[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2008,26(2):178-185.
APA	Gao Qian,Xu Zhaoli,&Zhuang Ping.(2008).The relation between distribution of zooplankton and salinity in the Changjiang Estuary.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,26(2),178-185.
MLA	Gao Qian,et al."The relation between distribution of zooplankton and salinity in the Changjiang Estuary".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 26.2(2008):178-185.

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