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题名: Long-term changes in fish assemblage following the impoundments of the Three Gorges Reservoir in Hejiang, a protected reach of the upper Yangtze River
作者: Liu, F.1, 2, 3; Wang, J.1, 3; Cao, W.1, 3
通讯作者: Wang, J (reprint author), Chinese Acad Sci, Inst Hydrobiol, 7th Southern Rd East Lake, Wuhan 430072, Hubei Province, Peoples R China.
关键词: fish assemblage ; long-term changes ; the Three Gorges Reservoir ; the upper Yangtze River
刊名: KNOWLEDGE AND MANAGEMENT OF AQUATIC ECOSYSTEMS
发表日期: 2012
DOI: 10.1051/kmae/2013032
期: 407
收录类别: SCI
文章类型: Article
部门归属: [Liu, F. ; Wang, J. ; Cao, W.] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei Province, Peoples R China ; [Liu, F.] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China ; [Liu, F. ; Wang, J. ; Cao, W.] Chinese Acad Sci, Key Lab Biodivers & Conservat Aquat Organisms, Wuhan 430072, Hubei Province, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Key Technology RD Program [2008BAC39B03]; Three Gorges Project Eco-Environmental Monitoring System [JJ[2011]-028]; National Natural Science Foundation of China [NSFC 31061160185]
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: The construction of the Three Gorges Reservoir (TGR) has seriously affected the fish assemblage in the impounded reaches. However, fish assemblage changes in the riverine zone remain poorly documented. In order to explore how upstream fish assemblage has responded to the successive impoundments of the TGR, fish investigations were conducted biannually in Hejiang, a protected reach of the upper Yangtze River, during the period from 1997 to 2011. Multivariate analysis revealed significant temporal differences in fish assemblage following the impoundments of the TGR. Prior to the impoundments, the fish assemblage appeared to be very diversified and very even. Immediately after the first and the second impoundment, the lotic species, such as Coreius guichenoti, Rhinogobio ventralis, Rhinogobio cylindricus and Coreius heterodon, became evidently dominant, due to their upstream migrations from the reservoir. However, two years after the third impoundment, the lotic species decreased dramatically, while lentic Hypophthalmichthys molitrix and Pelteobagrus vachelli became the new dominant species. Based on this and other studies, we can see the habitats of the riverine fish in the upper Yangtze River have been shrunk seriously because of the impoundments of the TGR. The cascade hydropower development in the lower Jinsha River will pose an accumulative effect on the aquatic environment in the mainstream of the upper Yangtze River. Free-flowing tributaries, such as the Chishui River, will play more important roles in fish conservation.
英文摘要: The construction of the Three Gorges Reservoir (TGR) has seriously affected the fish assemblage in the impounded reaches. However, fish assemblage changes in the riverine zone remain poorly documented. In order to explore how upstream fish assemblage has responded to the successive impoundments of the TGR, fish investigations were conducted biannually in Hejiang, a protected reach of the upper Yangtze River, during the period from 1997 to 2011. Multivariate analysis revealed significant temporal differences in fish assemblage following the impoundments of the TGR. Prior to the impoundments, the fish assemblage appeared to be very diversified and very even. Immediately after the first and the second impoundment, the lotic species, such as Coreius guichenoti, Rhinogobio ventralis, Rhinogobio cylindricus and Coreius heterodon, became evidently dominant, due to their upstream migrations from the reservoir. However, two years after the third impoundment, the lotic species decreased dramatically, while lentic Hypophthalmichthys molitrix and Pelteobagrus vachelli became the new dominant species. Based on this and other studies, we can see the habitats of the riverine fish in the upper Yangtze River have been shrunk seriously because of the impoundments of the TGR. The cascade hydropower development in the lower Jinsha River will pose an accumulative effect on the aquatic environment in the mainstream of the upper Yangtze River. Free-flowing tributaries, such as the Chishui River, will play more important roles in fish conservation.
关键词[WOS]: POPULATIONS ; BIODIVERSITY ; CONSERVATION ; COMMUNITIES ; DIVERSITY ; IMPACTS ; POLAND ; CHINA ; DAMS
语种: 英语
WOS记录号: WOS:000317363100006
ISSN号: 1961-9502
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19280
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, Inst Hydrobiol, Wuhan 430072, Hubei Province, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Key Lab Biodivers & Conservat Aquat Organisms, Wuhan 430072, Hubei Province, Peoples R China

Recommended Citation:
Liu, F; Wang, J; Cao, W.Long-term changes in fish assemblage following the impoundments of the Three Gorges Reservoir in Hejiang, a protected reach of the upper Yangtze River,KNOWLEDGE AND MANAGEMENT OF AQUATIC ECOSYSTEMS,2012,(407):
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