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题名: Spatial changes of fish assemblages in relation to filling stages of the Three Gorges Reservoir, China
作者: Liao, Chuansong1, 2; Chen, Sibao1, 2; De Silva, Sena S.3; Correa, Sandra Bibiana4; Yuan, Jing1; Zhang, Tanglin1; Li, Zhongjie1; Liu, Jiashou1
关键词: assemblage structure ; dam construction ; filling stages ; fish biomass ; species richness
刊名: JOURNAL OF APPLIED ICHTHYOLOGY
发表日期: 2018-12-01
DOI: 10.1111/jai.13798
卷: 34, 期:6, 页:1293-1303
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
英文摘要: To study how fish assemblages changed at different fillings stages, we compared the present fish assemblages (2015-2017; after the third filling in 2009) with those from periods prior to impoundment (1975), after the first closure (1997-2000), after the first filling (2005-2006), and after the second filling (2006-2009) in the upper, middle and lower sections of the Three Gorges Reservoir, the largest in the world. Our results demonstrated that species richness was higher in the upper section than in the lower and middle sections, whereas the overall richness was lower than that prior to damming. The present assemblages were different among sections associated with their specific habitats; i.e., the proportion of rheophilic fishes decreased, whereas those of limnophilic and eurytopic fishes increased from the upper to the lower sections. Temporal comparisons suggested significant declines in proportions of rheophilic and migratory fishes, whereas small-bodied and eurytopic fishes increased after the impoundment. Fish biomass (CPUE) was greater in the upper section than in the lower and middle sections, and significantly increased after the third filling in the upper section. Overall, our results indicated that the Three Gorges Dam significantly impacted fish assemblages, and the effects of impoundment were magnified by the increased filling scales. The fish assemblages in the upper section were less impacted, demonstrating the high conservation value offered by the upper section to the fish species inhabiting the upper reaches of the Yangtze River.
关键词[WOS]: STURGEON ACIPENSER-SINENSIS ; SAN-FRANCISCO ESTUARY ; YANGTZE-RIVER ; COMMUNITY STRUCTURE ; TROPICAL RIVER ; DAM ; DIVERSITY ; HABITAT ; CONSERVATION ; IMPOUNDMENT
语种: 英语
项目资助者: R & D Project of the Ministry of Science and Technology of China(2015BAD13B02) ; National Natural Science Foundation of China(51679230) ; Earmarked Fund for China Agriculture Research System(CARS-45) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ10)
WOS记录号: WOS:000450022800004
ISSN号: 0175-8659
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/56066
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, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Deakin Univ, Sch Life & Environm Sci, Warrnambool, Vic, Australia
4.Mississippi State Univ, Dept Wildlife Fisheries & Aquaculture, Starkville, MS USA
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