Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China

doi:10.1002/iroh.201111488

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	Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China
	Zhang, Min 1,2; Cai, Qinghua 1; Xu, Yaoyang 1; Kong, Linghui 1; Tan, Lu 1,2; Wang, Lan 1; Cai, QH (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
刊名	INTERNATIONAL REVIEW OF HYDROBIOLOGY
	2012-06-01
卷号	97 期号:3 页码:169-183
关键词	Longitudinal Distribution Zonation Impoundment Xiangxi Bay Three Gorges Reservoir
ISSN号	1434-2944
DOI	10.1002/iroh.201111488
文献子类	Article
英文摘要	The longitudinal patterns of the macroinvertebrate community in the Xiangxi Bay of the Three Gorges Reservoir (TGR) were investigated during the second (2nd) and third (3rd) impoundment stages (October 2006July 2010), to test the effects of increased water level fluctuations (WLF) on the macroinvertebrates. By comparing to the former reports of the first (1st) impoundment stage (inter-annual WLF 4 m), we found that oligochaetes dominated in three different stages in the Xiangxi Bay. However, the total abundance of macroinvertebrates showed a dramatical decline from the 1st to 2nd stage (inter-annual WLF 11 m), but changed slightly from the 2nd to 3rd stage (inter-annual WLF 30 m). This indicated that higher WLF in the 2nd stage had already greatly reduced the macroinvertebrates abundance, thereby the disturbance in the 3rd stage could only slightly affect the already reduced abundance. Three longitudinal zones (the mainstream zone, the lacustrine zone and the transitional zone) were found based on the macroinvertebrate density, biomass, and taxa richness, combined with the geographical location of each site. Significant differences in density and biomass of macroinvertebrate were found among different zones (P < 0.05), yet no significant difference was found in taxa richness (P > 0.05). Two-way indicator species analysis showed that the community type in most sites varied in different seasons from the 2nd stage, exhibiting a dynamic zonation pattern, which differed with the stable pattern of the 1st stage. This seasonal feature was coupled to the seasonal changes of the WLF. ((c) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim); The longitudinal patterns of the macroinvertebrate community in the Xiangxi Bay of the Three Gorges Reservoir (TGR) were investigated during the second (2nd) and third (3rd) impoundment stages (October 2006July 2010), to test the effects of increased water level fluctuations (WLF) on the macroinvertebrates. By comparing to the former reports of the first (1st) impoundment stage (inter-annual WLF 4 m), we found that oligochaetes dominated in three different stages in the Xiangxi Bay. However, the total abundance of macroinvertebrates showed a dramatical decline from the 1st to 2nd stage (inter-annual WLF 11 m), but changed slightly from the 2nd to 3rd stage (inter-annual WLF 30 m). This indicated that higher WLF in the 2nd stage had already greatly reduced the macroinvertebrates abundance, thereby the disturbance in the 3rd stage could only slightly affect the already reduced abundance. Three longitudinal zones (the mainstream zone, the lacustrine zone and the transitional zone) were found based on the macroinvertebrate density, biomass, and taxa richness, combined with the geographical location of each site. Significant differences in density and biomass of macroinvertebrate were found among different zones (P < 0.05), yet no significant difference was found in taxa richness (P > 0.05). Two-way indicator species analysis showed that the community type in most sites varied in different seasons from the 2nd stage, exhibiting a dynamic zonation pattern, which differed with the stable pattern of the 1st stage. This seasonal feature was coupled to the seasonal changes of the WLF. ((c) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
WOS关键词	3 GORGES RESERVOIR ; BENTHIC MACROINVERTEBRATES ; XIANGXI BAY ; WATER-LEVEL ; LAKE ; INVERTEBRATES ; SEDIMENTS ; BLOOM ; ABUNDANCE ; DRAWDOWN
WOS研究方向	Marine & Freshwater Biology
语种	英语
WOS记录号	WOS:000305332700001
资助机构	Key Project of Knowledge Innovation Program of CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; Major S & T Special Project of Water Pollution Control and Management[2008ZX07526-002-07] ; Key Project of Knowledge Innovation Program of CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; Major S & T Special Project of Water Pollution Control and Management[2008ZX07526-002-07] ; Key Project of Knowledge Innovation Program of CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; Major S & T Special Project of Water Pollution Control and Management[2008ZX07526-002-07] ; Key Project of Knowledge Innovation Program of CAS[KZCX2-YW-427]; National Natural Science Foundation of China[40671197]; Major S & T Special Project of Water Pollution Control and Management[2008ZX07526-002-07]
公开日期	2012-09-25
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/16841]
专题	水生生物研究所_淡水生态学研究中心_期刊论文
通讯作者	Cai, QH (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
作者单位	1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Min,Cai, Qinghua,Xu, Yaoyang,et al. Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China[J]. INTERNATIONAL REVIEW OF HYDROBIOLOGY,2012,97(3):169-183.
APA	Zhang, Min.,Cai, Qinghua.,Xu, Yaoyang.,Kong, Linghui.,Tan, Lu.,...&Cai, QH .(2012).Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China.INTERNATIONAL REVIEW OF HYDROBIOLOGY,97(3),169-183.
MLA	Zhang, Min,et al."Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China".INTERNATIONAL REVIEW OF HYDROBIOLOGY 97.3(2012):169-183.