Length-weight relationships of eleven fish species from the middle reaches of Jinsha River, southwest China

Abstract

Summary Length‐weight relationships (LWRs) were determined for eleven endemic fish species [Coreius guichenoti (Sauvage & Dabry de Thiersant, 1874), Glyptothorax sinensis (Regan, 1908), Leptobotia elongata (Bleeker, 1870), Leptobotia taeniops (Sauvage, 1878), Pseudobagrus crassilabris (Günther, 1864), Rhinogobio ventralis (Sauvage & Dabry de Thiersant, 1874), Saurogobio dabryi (Bleeker, 1871), Schizothorax chongi (Fang, 1936), Schizothorax kozlovi (Nikolskii, 1903), Schizothorax prenanti (Tchang, 1930) and Schizothorax wangchiachii (Fang, 1936)] from the middle reaches of the Jinsha River in southwest China. Samples were obtained between May 2004 and July 2013 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. Prior to this study, the LWRs for four species (P. crassilabris, S. chongi, S. kozlovi and S. prenanti) were unknown.

Length-weight relationships of four fish species from the Niulan River, China

“…Length‐weight relationships (LWRs) are important tools to convert length into weight, particularly in field studies where weighing the fish is often not possible (Cao, Yang, Cai, & Pan, ; Froese, ; Pan et al., ; Que et al., ). The Niulan is an important river of the Jinsha tributary and important to local fisheries.…”

Length-weight relationships of three fish species from the Yalong River, China

“…The length-weight relationship (LWR) is an important tool in fisheries science (Froese, 2006;Froese, Tsikliras, & Stergiou, 2011;Lei, Chen, Tao, Xiong, & Chen, 2015;Pan, Xie, Yang, Tang, & Qiao, 2014;Que et al, 2015;Wang, Tang, Ruan, Wang, & Xiong, 2015). The LWR is useful in fisheries management and conservation (Cao, Yang, Cai, & Pan, 2016;Pan et al, 2015;Xiong et al, 2015). and L is the standard length (cm), was fitted with a simple linear regression model using log-transformed data.…”

Length-weight relationships of nine freshwater fish species from the Liujiang River, Guangxi, China

“…There were some differences in b ‐values calculated in the present study for Acrossocheilus parallens , Microphysogobio fukiensis , Squalidus wolterstorffi , Pseudohemiculter dispar , Hemibagrus macropterus and Tachysurus fulvidraco when compared with those of other authors (Li et al., ; Lei et al., ). The value of b for Pseudobagrus crassilabris from the Liujiang River was lower than that of specimens from the middle reaches of Jthe insha River (Pan et al., ), and higher than that of Pseudobagrus preatti specimens from the upper reaches of the Yangtze River (Pan et al., ).…”