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学科主题: Ecology; Marine & Freshwater Biology
题名: Macrozoobenthos in Yangtze floodplain lakes: patterns of density, biomass, and production in relation to river connectivity
作者: Pan, Bao-Zhu ; Wang, Hai-Jun ; Liang, Xiao-Min ; Wang, Hong-Zhu
通讯作者: Wang, HZ, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China ; zhuzipan@163.com ; wanghj@ihb.ac.cn ; liangxm@ihb.ac.cn ; wanghz@ihb.ac.cn
关键词: macrozoobenthos ; water current ; connectivity ; Yangtze floodplain lakes
刊名: JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY
发表日期: 2011
卷: 30, 期:2, 页:589-602
收录类别: SCI
部门归属: [Pan, Bao-Zhu; Wang, Hai-Jun; Liang, Xiao-Min; Wang, Hong-Zhu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
资助者: National Natural Science Foundation of China [30900194]; Chinese Academy of Sciences [KZCX1-YW-14-1]
摘要: A systematic investigation of macrozoobenthos was conducted in Yangtze floodplain waters to reveal patterns of density, biomass, and production in relation to river connectivity. In the Yangtze-connected lakes, 78 taxa belonging to 33 families and 62 genera were identified. Macrozoobenthos density was 327 individuals/m(2), biomass was 1.40 g dry mass/m(2), and production was 3.23 g dry mass m(-2) y(-1). The assemblages were characterized by high diversity, high production, and high bivalve-filterer abundance. The key factor determining the macrozoobenthic assemblages was river connectivity. As river connectivity increased, 3 types of response patterns were observed: 1) density, biomass, and production of collector-filterers (mainly Bivalvia), shredders (e.g., Stictochironomus), and predators (e.g., Dytiscidae) showed unimodal changes, i.e., first increased and then decreased; 2) density, biomass, and production of collector-gatherers (mainly Tubificidae and Chironomidae) decreased continuously; and 3) density of scrapers (mainly Gastropoda) decreased, whereas their biomass and production changed unimodally. At an intermediate level of river connectivity, biomass and production of total macrozoobenthos reached maxima, whereas density decreased with increasing river connectivity. Previous research showed that a diversity of zoobenthos also peaks at moderate connectivity with rivers. Therefore, to maintain high productivity as well as high biodiversity in the Yangtze floodplain, protecting the remnants of river-connected lakes and linking disconnected lakes freely with the mainstream are crucial.
WOS记录号: WOS:000290361600020
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15584
Appears in Collections:淡水生态学研究中心_期刊论文

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Recommended Citation:
Pan, Bao-Zhu; Wang, Hai-Jun; Liang, Xiao-Min; Wang, Hong-Zhu.Macrozoobenthos in Yangtze floodplain lakes: patterns of density, biomass, and production in relation to river connectivity,JOURNAL OF THE NORTH AMERICAN BENTHOLOGICAL SOCIETY,2011,30(2):589-602
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