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题名: Different competitive outcomes among four species of cladocerans under different alga combinations of colonial Microcystis spp. and green alga Scenedesmus obliquus
作者: Chen, Feizhou; Xie, Ping; Qin, Boqiang
关键词: cladoceran ; Daphnia ; competition ; Microcystis spp
刊名: HYDROBIOLOGIA
发表日期: 2007-05-01
DOI: 10.1007/s10750-006-0493-5
卷: 581, 页:209-215
收录类别: ISTP ; SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Marine & Freshwater Biology
研究领域[WOS]: Marine & Freshwater Biology
英文摘要: Cyanobacteria blooms (especially Microcystis spp.) are thought to alter dominance of large-sized daphnids into small-sized metazoan zooplankton. However, several field investigations show different phenomena. Laboratory experiments were conducted based on the hypothesis that different Microcystis spp. concentrations would influence competitive outcomes using two algal combinations of different concentrations and four species of cladocerans. In the algal combination of 50 mg l(-1)colonial Microcystis spp. + 1 mg l(-1) Scenedesmus obliquus (fresh weight), Daphnia carinata was absent during the experiment in competition with other cladocerans. Decreasing colonial Microcystis spp. concentration (10 mg l(-1)) resulted in a shift from dominance by small-sized cladocerans to dominance by D. carinata. No significant effects of different concentrations of colonial Microcystis spp. on competitive outcomes were shown among three small-sized cladocerans. These results support the idea that cyanobacteria concentration affects the dominance status of large-bodied daphnid.
关键词[WOS]: APPARENT COMPETITION ; TOXIC CYANOBACTERIUM ; HYPERTROPHIC LAKE ; DAPHNIA-CARINATA ; AERUGINOSA ; ZOOPLANKTON ; POPULATION ; GROWTH ; CHLORELLA ; COMMUNITY
语种: 英语
WOS记录号: WOS:000244992800023
ISSN号: 0018-8158
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/27230
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China
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