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题名: Macrozoobenthos in Yangtze oxbows: community characteristics and causes of resources decline
作者: Pan Baozhu (zhuzipan@163.com) ; Wang Haijun ; Liang Xiaomin ; Wang Zongxing ; Shu Fengyue ; Wang Hongzhu (wanghz@ihb.ac.cn)
通讯作者: Pan Baozhu ; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
刊名: Hupo Kexue
发表日期: 2008
卷: 20, 期:6, 页:806-813
收录类别: 其他
英文摘要: Ecological surveys in Tian-e-zhou Oxbow and Laojianghe Oxbow along the middle reaches of Yangtze River were carried out during April 2003 to February 2004. Results indicated that macrozoobenthos communities of oxbows were similar to those of river-isolated lakes in the composition of standing crops, dominated by gastropods and aquatic insects, but were richer in potamophilus and psychrophilic species. Compared with the data of 1990's, biomass of macrozoobenthos decreased by 48.3%-78.6%, mainly due to the decline of mollusks. The resource deterioration was mainly ascribed to overfishing and river-lake disconnection. Comparison with other types of Yangtze waters indicated that the floodplain waterbodies with an intermediate level of hydrological connectivity have the highest species biodiversities of macrozoobenthos, and have abundant mollusks, especially bivalves. To restore the important function of the oxbows in maintaining biodiversity of the Yangtze floodplain, it is suggested to stock animals rationally and to reconnect with the Yangtze River as frequently as possible.
ISSN号: 1003-5427
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18727
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Pan Baozhu (zhuzipan@163.com) ; Wang Haijun; Liang Xiaomin; Wang Zongxing; Shu Fengyue; Wang Hongzhu (wanghz@ihb.ac.cn).Macrozoobenthos in Yangtze oxbows: community characteristics and causes of resources decline,Hupo Kexue,2008,20(6):806-813
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