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题名: Species composition, diversity and density of small fishes in two different habitats in Niushan Lake
作者: Ye, Shao-wen ; Li, Zhong-jie (zhongjie@ihb.ac.en) ; Cao, Wen-xuan
通讯作者: Ye, Shao-wen ; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
刊名: Yingyong Shengtai Xuebao
发表日期: 2007
卷: 18, 期:7, 页:1589-1595
收录类别: 其他
英文摘要: This paper studied the spatial distribution of small fishes in a shallow macrophytic take, Niushan Lake in spring 2003, and its relations with habitat heterogeneity. Based on the macrophyte cover condition, distance from lake shore and water depth, two representative habitat types in the lake were selected. Habitat A was near the shore with dense submersed macrophyte, while habitat B was far from the shore with sparse submersed macrophyte. Small fishes were sampled quantitatively by block net (180 m(2)), and their densities within the net area were estimated by multiple mark-recapture or Zippin's removal method. The results showed that there were some differences in species composition, biodiversity measurement, and estimated density,of small. fishes between the two habitats: 1) the catches in habitat A consisted of 14 small fish species from 5 families, among which, benthopelagic species Rhodeus ocellatus, Parachellognathus imberbis and Pseudorasbora parva were considered as dominant species, while those in habitat B consisted of 9 small fish species from 3 families, among which, bottom species Rhinogoblus giurinus and Micropercops swinhonis were dominant; 2) the Bray-Curtis index between the two small fish communities was 0.22.2, reflecting their low structure similarity, and no significant difference was observed between their rank/abundance distributions, both of which belonged to log series distribution; 3) the total density of 9 major species in habitat A was 8.71 ind center dot m(-2) while that of 5 major species in habitat B was only (-2) 3.54 ind. m(-2). The fact that the spatial distribution of the small fishes differed with habitats might be related to their habitat needs for escaping predators, feeding, and. breeding, and thus, aquatic macrophyte habitat should be of significance in the rational exploitation of small fish resources as well as the conservation of fish resource diversity.
ISSN号: 1001-9332
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18243
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Ye, Shao-wen; Li, Zhong-jie (zhongjie@ihb.ac.en) ; Cao, Wen-xuan.Species composition, diversity and density of small fishes in two different habitats in Niushan Lake,Yingyong Shengtai Xuebao,2007,18(7):1589-1595
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文件名: Species composition, diversity and density of small fishes in two different habitats in Niushan Lake.pdf
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