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
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2008-05-01
卷号	26 期号:2 页码:178-185
关键词	Salinity Changjiang (Yangtze River) Estuary Zooplankton Abundance Dominant Species
ISSN号	0254-4059
DOI	10.1007/s00343-008-0178-1
文献子类	Article
英文摘要	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.
学科主题	Limnology ; Oceanography
URL标识	查看原文
语种	英语
WOS记录号	WOS:000256416000009
公开日期	2010-12-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/5561]
专题	海洋研究所_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
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.