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题名: Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China
作者: Zhang, Min1, 2; Cai, Qinghua1; Xu, Yaoyang1; Kong, Linghui1; Tan, Lu1, 2; Wang, Lan1
通讯作者: Cai, QH (reprint author), Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China.
关键词: Longitudinal distribution ; Zonation ; Impoundment ; Xiangxi Bay ; Three Gorges Reservoir
刊名: INTERNATIONAL REVIEW OF HYDROBIOLOGY
发表日期: 2012-06-01
DOI: 10.1002/iroh.201111488
卷: 97, 期:3, 页:169-183
收录类别: SCI
文章类型: Article
部门归属: [Zhang, Min; Cai, Qinghua; Xu, Yaoyang; Kong, Linghui; Tan, Lu; Wang, Lan] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Zhang, Min; Tan, Lu] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: 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]
类目[WOS]: Marine & Freshwater Biology
研究领域[WOS]: Marine & Freshwater Biology
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)
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)
关键词[WOS]: 3 GORGES RESERVOIR ; BENTHIC MACROINVERTEBRATES ; XIANGXI BAY ; WATER-LEVEL ; LAKE ; INVERTEBRATES ; SEDIMENTS ; BLOOM ; ABUNDANCE ; DRAWDOWN
语种: 英语
WOS记录号: WOS:000305332700001
ISSN号: 1434-2944
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16841
Appears in Collections:淡水生态学研究中心_期刊论文

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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

Recommended Citation:
Zhang, Min; Cai, Qinghua; Xu, Yaoyang; Kong, Linghui; Tan, Lu; Wang, Lan.Spatial Distribution of Macroinvertebrate Community along a Longitudinal Gradient in a Eutrophic Reservoir-Bay during Different Impoundment Stages, China,INTERNATIONAL REVIEW OF HYDROBIOLOGY,2012,97(3):169-183
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