{"title":"Length-weight relationships of four indigenous fish species from the Nujiang River, China","authors":"Songhao Ji, Liuyong Ding, Juan Tao","doi":"10.1111/jai.14354","DOIUrl":null,"url":null,"abstract":"<p>Specimens of four fish species (<i>Garra nujiangensis</i> Chen, Zhao & Yang, 2009, <i>Poropuntius opisthopterus</i> (Wu, 1977), <i>Creteuchiloglanis macropterus</i> (Ng, 2004), and <i>Glyptothorax lanceatus</i> Ng, Jiang & Chen, 2012) were caught in the Nujiang River, China. Fish were sampled between May 2017 to July 2021 in irregular intervals, using gill nets (mesh sizes 6, 10, and 16 cm) and cage nets (mesh size 1 cm). Total length (to nearest 0.1 cm, L) and total weight (to nearest 0.001 g, W) were determined. Length-weight relationships (LWRs) were estimated through the linear regression of W = <i>a</i>L<sup><i>b</i></sup>. The <i>r</i><sup>2</sup> values for all LWRs estimates were all above .96, indicating that no serious outlier values were included in the samples.</p>","PeriodicalId":14894,"journal":{"name":"Journal of Applied Ichthyology","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2022-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Applied Ichthyology","FirstCategoryId":"97","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jai.14354","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"FISHERIES","Score":null,"Total":0}
引用次数: 1
Abstract
Specimens of four fish species (Garra nujiangensis Chen, Zhao & Yang, 2009, Poropuntius opisthopterus (Wu, 1977), Creteuchiloglanis macropterus (Ng, 2004), and Glyptothorax lanceatus Ng, Jiang & Chen, 2012) were caught in the Nujiang River, China. Fish were sampled between May 2017 to July 2021 in irregular intervals, using gill nets (mesh sizes 6, 10, and 16 cm) and cage nets (mesh size 1 cm). Total length (to nearest 0.1 cm, L) and total weight (to nearest 0.001 g, W) were determined. Length-weight relationships (LWRs) were estimated through the linear regression of W = aLb. The r2 values for all LWRs estimates were all above .96, indicating that no serious outlier values were included in the samples.
期刊介绍：
The Journal of Applied Ichthyology publishes articles of international repute on ichthyology, aquaculture, and marine fisheries; ichthyopathology and ichthyoimmunology; environmental toxicology using fishes as test organisms; basic research on fishery management; and aspects of integrated coastal zone management in relation to fisheries and aquaculture. Emphasis is placed on the application of scientific research findings, while special consideration is given to ichthyological problems occurring in developing countries. Article formats include original articles, review articles, short communications and technical reports.
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