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| 论文摘要： | Length-weight relationships (LWRs) were determined for five fish species, including two endemic species [Platysmacheilus nudiventris (Luo, Le & Chen, 1977), and Rhinogobio cylindricus (Gunther, 1888)] from the Xiaonanhai reach of the Upper Yangtze River in southwest China. Samples were obtained between July 2011 and October 2012 using various types of fishing gear and electroshock fishing techniques. For each species, the sample size, length range, weight range, LWR, 95% confidence intervals of a and b, and coefficient of correlation were determined. Length-weight relationships for two species were unknown to FishBase, and new maximum lengths are recorded for two species. |
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