Length-weight relations of 14 endemic fish species from the upper Yangtze River basin, China

Abstract

Length-weight relations were estimated for 14 endemic fish species of the upper Yangze River, namely Sinogastromyzon szechuanensis Fang, 1930; Jinshaia sinensis (Sauvage et Dabry de Thiersant, 1874); Megalobrama pellegrini (Tchang, 1930); Coreius guichenoti (Sauvage et Dabry de Thiersant, 1874); Rhinogobio cylindricus Günther, 1888; Rhinogobio ventralis (Sauvage et Dabry de Thiersant, 1874); Procypris rabaudi (Tchang, 1930); Ancherythroculter kurematsui (Kimura, 1934); Ancherythroculter nigrocauda Yih et Wu, 1964; Acrossocheilus monticola (Günther, 1888); Leptobotia elongata (Bleeker, 1870); Hemiculterella sauvagei Warpachowski, 1888; Hemiculter tchangi Fang, 1942; and Xenophysogobio boulengeri (Tchang, 1929). The a values obtained ranged from 0.006 to 0.023, and b values ranged from 2.955 to 3.377. The t-test results indicated the first seven species grew isometrically and the other 7 species grew allometrically.