Macrozoobenthic community of Poyang Lake, the largest freshwater lake of China, in the Yangtze floodplain

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	Macrozoobenthic community of Poyang Lake, the largest freshwater lake of China, in the Yangtze floodplain
	Wang, Hong-Zhu; Xu, Qiao-Qing; Cui, Yong-De; Liang, Yan-Ling
刊名	LIMNOLOGY
	2007-04-01
卷号	8 期号:1 页码:65-71
关键词	macrozoobenthos river-connected lake community structure Yangtze floodplain
ISSN号	1439-8621
通讯作者	Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
中文摘要	Poyang Lake (Poyang Hu) is located at the junction of the middle and lower reaches of the Yangtze (Changjiang) River, covering an area of 3283 km(2). As one of the few lakes that are still freely connected with the river, it plays an important role in the maintenance of the unique biota of the Yangtze floodplain ecosystem. To promote the conservation of Poyang Lake, an investigation of the macrobenthos in the lake itself and adjoining Yangtze mainstream was conducted in 1997-1999. Altogether 58 benthic taxa, including, 22 annelids, 8 mollusks, 26 arthropods, and 2 miscellaneous animals, were identified from quantitative samples. The benthic fauna shows a high diversity and a marine affinity. The standing crops of benthos in the lake were much higher than those in the river, being 659 individuals/m(2) and 187.3g/m(2) (wet mass) in the main lake, and 549 individuals/m(2) and 116.6 g/m(2) in the lake outlet, but only 129 individuals/m(2) and 0.4g/m(2) in the river. The dominant roup in the lake was Mollusca, comprising 63.4% of the total in density and 99.5% in biomass. An analysis of the functional feeding structure indicated that collector-filterers and scrapers were predominant in the lake, up to 42.2% and 24.7% in density and 70.2% and 29.2% in biomass, respectively, while shredders and collector-gatherers were relatively common in the river. The present study was restricted to the northern outlet and the northeast part of Poyang Lake. A scrutiny is required for the remaining areas.
英文摘要	Poyang Lake (Poyang Hu) is located at the junction of the middle and lower reaches of the Yangtze (Changjiang) River, covering an area of 3283 km(2). As one of the few lakes that are still freely connected with the river, it plays an important role in the maintenance of the unique biota of the Yangtze floodplain ecosystem. To promote the conservation of Poyang Lake, an investigation of the macrobenthos in the lake itself and adjoining Yangtze mainstream was conducted in 1997-1999. Altogether 58 benthic taxa, including, 22 annelids, 8 mollusks, 26 arthropods, and 2 miscellaneous animals, were identified from quantitative samples. The benthic fauna shows a high diversity and a marine affinity. The standing crops of benthos in the lake were much higher than those in the river, being 659 individuals/m(2) and 187.3g/m(2) (wet mass) in the main lake, and 549 individuals/m(2) and 116.6 g/m(2) in the lake outlet, but only 129 individuals/m(2) and 0.4g/m(2) in the river. The dominant roup in the lake was Mollusca, comprising 63.4% of the total in density and 99.5% in biomass. An analysis of the functional feeding structure indicated that collector-filterers and scrapers were predominant in the lake, up to 42.2% and 24.7% in density and 70.2% and 29.2% in biomass, respectively, while shredders and collector-gatherers were relatively common in the river. The present study was restricted to the northern outlet and the northeast part of Poyang Lake. A scrutiny is required for the remaining areas.
学科主题	Limnology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Limnology
研究领域[WOS]	Marine & Freshwater Biology
关键词[WOS]	CONNECTIVITY ; GENUS
收录类别	SCI
语种	英语
WOS记录号	WOS:000245751500007
公开日期	2010-10-13
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/152342/8622]
专题	水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文
作者单位	Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hong-Zhu,Xu, Qiao-Qing,Cui, Yong-De,et al. Macrozoobenthic community of Poyang Lake, the largest freshwater lake of China, in the Yangtze floodplain[J]. LIMNOLOGY,2007,8(1):65-71.
APA	Wang, Hong-Zhu,Xu, Qiao-Qing,Cui, Yong-De,&Liang, Yan-Ling.(2007).Macrozoobenthic community of Poyang Lake, the largest freshwater lake of China, in the Yangtze floodplain.LIMNOLOGY,8(1),65-71.
MLA	Wang, Hong-Zhu,et al."Macrozoobenthic community of Poyang Lake, the largest freshwater lake of China, in the Yangtze floodplain".LIMNOLOGY 8.1(2007):65-71.