Macrobenthic community structure in the Changjiang Estuary and its adjacent waters in summer

	Macrobenthic community structure in the Changjiang Estuary and its adjacent waters in summer
	Meng Wei 1; Liu Lusan 1; Zheng Binghui 1; Li Xinzheng 2; Li Zhongyu 3
	2007
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
卷号	26 期号:6 页码:62-71
文章类型	Article
摘要	On the basis of data collected in the summer of 2006 from 27 sampling stations in the Changjiang Estuary and its adjacent waters, the ecological characteristics of macrobenthos and the relationship between the macrobenthos and the environmental factors were studied using hierarchical cluster and non-metric multidimensional scaling ( MDS). The biomass, abundance, Shannon - Wiener's and Margalef' s indices of the macrobenthos were presented. The results showed that a total of 253 maerobenthic species were found in the research region, and most. of them belong to mollusks and polychaetes. The dominant species were Cossurella dimorpha, Eocylichna cylindrella, Episiphon kiaochowwanense, Nassarius semiplicatus, Ocstergrenia variabilis and Sternaspis scutata. The average abundance of the macrobenthos was (313.15 +/- 233.4) ind. / m(2), and the average biomass was (15.2 +/- 11.2) g/ m(2). The distribution patterns of the abundance and biomass of the macrobenthos were similar. The abundance and biomass in the area close to the estuary were lower than those from the area more distant to the estuary; the central part of the research region had higher abundance and biomass than other parts of the research region. In accordance with the results, four macrobenthic communities with distinct spatial differences were identified. The low abundance and biomass in the area close to the estuary should be caused by the high sedimentation rate. The statistical analysis indicated that the depth is the most important factor affecting the distribution of macrobenthos.; On the basis of data collected in the summer of 2006 from 27 sampling stations in the Changjiang Estuary and its adjacent waters, the ecological characteristics of macrobenthos and the relationship between the macrobenthos and the environmental factors were studied using hierarchical cluster and non-metric multidimensional scaling ( MDS). The biomass, abundance, Shannon - Wiener's and Margalef' s indices of the macrobenthos were presented. The results showed that a total of 253 maerobenthic species were found in the research region, and most. of them belong to mollusks and polychaetes. The dominant species were Cossurella dimorpha, Eocylichna cylindrella, Episiphon kiaochowwanense, Nassarius semiplicatus, Ocstergrenia variabilis and Sternaspis scutata. The average abundance of the macrobenthos was (313.15 +/- 233.4) ind. / m(2), and the average biomass was (15.2 +/- 11.2) g/ m(2). The distribution patterns of the abundance and biomass of the macrobenthos were similar. The abundance and biomass in the area close to the estuary were lower than those from the area more distant to the estuary; the central part of the research region had higher abundance and biomass than other parts of the research region. In accordance with the results, four macrobenthic communities with distinct spatial differences were identified. The low abundance and biomass in the area close to the estuary should be caused by the high sedimentation rate. The statistical analysis indicated that the depth is the most important factor affecting the distribution of macrobenthos.
关键词	Macrobenthos Community Structure Biodiversity Changjiang Estuary
收录类别	SCI
语种	英语
WOS记录号	WOS:000252472300006
引用统计	被引频次：7[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/337002/6312
专题	海洋生物分类与系统演化实验室
作者单位	1.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Jiamusi Municipal Environm Monitoring Stn, Jiamusi 154002, Peoples R China
推荐引用方式 GB/T 7714	Meng Wei,Liu Lusan,Zheng Binghui,et al. Macrobenthic community structure in the Changjiang Estuary and its adjacent waters in summer[J]. ACTA OCEANOLOGICA SINICA,2007,26(6):62-71.
APA	Meng Wei,Liu Lusan,Zheng Binghui,Li Xinzheng,&Li Zhongyu.(2007).Macrobenthic community structure in the Changjiang Estuary and its adjacent waters in summer.ACTA OCEANOLOGICA SINICA,26(6),62-71.
MLA	Meng Wei,et al."Macrobenthic community structure in the Changjiang Estuary and its adjacent waters in summer".ACTA OCEANOLOGICA SINICA 26.6(2007):62-71.

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