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Length-weight relationships of six fish species from the Zengqu River and the Ouqu River, southwest China

文献类型: 外文期刊

作者: Zhu, T. B. 1 ; Yang, D. G. 1 ; Liu, Y. 1 ; Li, F. 1 ;

作者机构: 1.Chinese Acad Fisheries Sci, Yangtze River Fisheries Res Inst, Minist Agr China, Key Lab Freshwater Biodivers Conservat, Wuhan 430223, Peoples R China

期刊名称:JOURNAL OF APPLIED ICHTHYOLOGY ( 影响因子:0.892; 五年影响因子:0.956 )

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收录情况: SCI

摘要: This study provides the first report of length-weight relationships (LWRs) for six endemic fish species collected from the Zengqu River and the Ouqu River, two of the tributaries to the upper reaches of the Jinsha River, southwest China. Samples were obtained in May 2013 and September 2013 using various types of fishing gear. A total of 413 specimens belonging to six fish species were analyzed; their LWRs were W = 0.0069L(3.086) (r(2) = 0.987) for Schizothorax wangchiachii (Fang, 1936), W = 0.0076L(3.029) (r(2) = 0.980) for Schizothorax dolichonema (Herzenstein, 1889), W = 0.0029L(3.315) (r(2) = 0.961) for Schizopygopsis malacanthus (Herzenstein, 1891), W = 0.0082L(2.970) (r(2) = 0.950) for Ptychobarbus kaznakovi (Nikolsky, 1903), W = 0.0017L(3.464) (r(2) = 0.957) for Triplophysa stolioczkae (Steindachner, 1866), and W = 0.0037L(3.190) (r(2) = 0.956) for Triplophysa orientalis (Herzenstein, 1888). Prior to this study, the LWRs for S. dolichonema, P. kaznakovi and T. orientalis were unknown. In addition, new maximum sizes for four of the species are provided.

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