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学科主题: Ecology; Marine & Freshwater Biology
题名: Immediate impacts of the second impoundment on fish communities in the Three Gorges Reservoir
作者: Gao, Xin1, 2, 3; Zeng, Yu1, 2, 3; Wang, Jianwei1, 2; Liu, Huanzhang1, 2
通讯作者: Liu, HZ, Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei Province, Peoples R China
关键词: Reservoir impoundment ; Fish community ; Three Gorges Reservoir ; Yangtze River
刊名: ENVIRONMENTAL BIOLOGY OF FISHES
发表日期: 2010-02-01
DOI: 10.1007/s10641-009-9577-1
卷: 87, 期:2, 页:163-173
收录类别: SCI
文章类型: Article
部门归属: [Gao, Xin; Zeng, Yu; Wang, Jianwei; Liu, Huanzhang] Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei Province, Peoples R China; [Gao, Xin; Zeng, Yu; Wang, Jianwei; Liu, Huanzhang] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei Province, Peoples R China; [Gao, Xin; Zeng, Yu] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: CAS [KZCX1-YW-08-01]; National Natural Science Foundation of China (NSFC) [40432003]
类目[WOS]: Ecology ; Marine & Freshwater Biology
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology
摘要: Long and short term investigations have revealed dramatic changes in fish communities after impoundments by reservoirs. However, the process of these changes during impoundment remains poorly studied. In 2005 and 2006, before and during the second stage of impoundment of the Three Gorges Reservoir (TGR), in the upper reaches of the Yangtze, China, we investigated fish catches to assess the impacts of reservoir filling on fish community structure. We conducted sampling at 2 sites, Wanzhou reach, which had been inundated by the first water filling in 2003, and Fuling reach, which still remained a riverine site before this water filling. The results revealed an evident and immediate shift of fish communities from lotic to lentic components. In the Wanzhou reach, during the filling, the abundance percentage of lentic fish increased to 94% compared to 69% before the filling. In the Fuling reach, after the filling, lotic fish declined in abundance from 99% to 85%, while lentic fish increased from less than 1% to 12% in abundance. Based on our investigation and the regulation scheme of the TGR, we predicted that after the completion of the Three Gorges Dam (TGD), there would be typical lacustrine, transitional and riverine zones in TGR, with their corresponding fish assemblages. We suggest that long term monitoring should be conducted to evaluate the future ecological effects, and different strategies implemented in these three zones for conservation purposes.
英文摘要: Long and short term investigations have revealed dramatic changes in fish communities after impoundments by reservoirs. However, the process of these changes during impoundment remains poorly studied. In 2005 and 2006, before and during the second stage of impoundment of the Three Gorges Reservoir (TGR), in the upper reaches of the Yangtze, China, we investigated fish catches to assess the impacts of reservoir filling on fish community structure. We conducted sampling at 2 sites, Wanzhou reach, which had been inundated by the first water filling in 2003, and Fuling reach, which still remained a riverine site before this water filling. The results revealed an evident and immediate shift of fish communities from lotic to lentic components. In the Wanzhou reach, during the filling, the abundance percentage of lentic fish increased to 94% compared to 69% before the filling. In the Fuling reach, after the filling, lotic fish declined in abundance from 99% to 85%, while lentic fish increased from less than 1% to 12% in abundance. Based on our investigation and the regulation scheme of the TGR, we predicted that after the completion of the Three Gorges Dam (TGD), there would be typical lacustrine, transitional and riverine zones in TGR, with their corresponding fish assemblages. We suggest that long term monitoring should be conducted to evaluate the future ecological effects, and different strategies implemented in these three zones for conservation purposes.
关键词[WOS]: DAM ; ASSEMBLAGES
语种: 英语
WOS记录号: WOS:000274250100010
ISSN号: 0378-1909
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13499
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Hubei Province, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei Province, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Gao, Xin; Zeng, Yu; Wang, Jianwei; Liu, Huanzhang.Immediate impacts of the second impoundment on fish communities in the Three Gorges Reservoir,ENVIRONMENTAL BIOLOGY OF FISHES,2010,87(2):163-173
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