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Changes of Fish Diversity and Community Structure in Daning River Before and After Impoundment

文献类型： 外文期刊

作者： Zeng, Yu 1 ; Duan, Xin-bin 4 ; Chen, Yong-bo 1 ; Li, Zhong-jie 4 ;

作者机构： 1.China Three Gorges Corp, Beijing 100038, Peoples R China

2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China

3.China West Normal Univ, Coll Life Sci, Nanchong 637002, Sichuan, Peoples R China

4.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Hubei, Peoples R China

关键词： Daning River;fish composition;feeding guilds;community structure

期刊名称：INTERNATIONAL CONFERENCE ON WATER RESOURCE AND ENVIRONMENTAL PROTECTION WREP 2014

ISSN：

年卷期： 2014 年

页码：

收录情况： SCI

摘要： In order to obtain data on the changes of fish diversity and community structure in Daning River before and after impoundment, present and past data were compared with the methods of taxonomic distinctness and feeding guild. Results showed that the fish fauna composition pattern is similar between the present survey and before construction of the dam, with the order Cypriniformes is predominant, followed in prevalence by the order Siluriformes and Perciformes, and the Daning River still maintain high fish biocliversity. However, the structure and composition of fish feeding guild has also change obviously, two feeding types decreased and five feeding types increased, all which were probably the result of environmental changes after impoundment.

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