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The relationship between species diversity of fish and basin characteristics of main rivers in the upper reaches of the Yangtze River
Liu Jun; Cao Wen-xuan; Chang Jian-bo; Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China, China
2004
Source PublicationJishou Daxue Xuebao (Ziran Kexue Ban)
ISSN1007-2985 (ISSN print)
Volume25Issue:1Pages:42-47
AbstractThe effects of the characteristics of the river basin on species numbers of fish had been studied by using regression analysis and principal components analysis (PCA). The number of endemic fishes related positively with the number of all species (p < 0.01). The diversity of all species related positively with basin area (p < 0.01), length of mainstream (p < 0.05), and the average river discharge (p < 0.01) respectively; related negatively with the falling gradient (p < 0.05). The diversity of all species per unit area or per unit length related negatively with length of mainstream or basin area (p <0.01), average river discharge (p < 0.05) respectively; related positively with the falling gradient (p < 0.01), the runfall of the rivers (p < 0.01) respectively. There were positive significant correlationships among the diversity of endemic fishes and the basin area (p < 0.05), length of mainstream (p < 0.05), and average river discharge (p < 0.01) respectively. The diversity of endemic species per unit area related negatively with length of mainstream (p < 0.01), average river discharge (p < 0.05) respectively; related positively with the falling gradient (p < 0.01), the runfall of the rivers (p <0.01) respectively. The diversity of endemic species per unit length related negatively with basin area (p < 0.05); related positively with the falling gradient (p < 0.01), the runfall of the rivers (p < 0.01) respectively. The result of PCA showed that the 1st and 2nd principal components revealed correlations among relative and absolute numbers of fish species and the characteristics of the river basin respectively.
Indexed By其他
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/18147
Collection期刊论文
Corresponding AuthorLiu Jun; Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China, China
Recommended Citation
GB/T 7714
Liu Jun,Cao Wen-xuan,Chang Jian-bo,et al. The relationship between species diversity of fish and basin characteristics of main rivers in the upper reaches of the Yangtze River[J]. Jishou Daxue Xuebao (Ziran Kexue Ban),2004,25(1):42-47.
APA Liu Jun,Cao Wen-xuan,Chang Jian-bo,&Inst Hydrobiol, Chinese Acad Sci, Wuhan, 430072, China, China.(2004).The relationship between species diversity of fish and basin characteristics of main rivers in the upper reaches of the Yangtze River.Jishou Daxue Xuebao (Ziran Kexue Ban),25(1),42-47.
MLA Liu Jun,et al."The relationship between species diversity of fish and basin characteristics of main rivers in the upper reaches of the Yangtze River".Jishou Daxue Xuebao (Ziran Kexue Ban) 25.1(2004):42-47.
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