Length-weight relationships of four fish species from the MoTuo reach of the Yarlung Zangbo River, southwest China

摘要

Length-weight relationships (LWRs) were evaluated for four fish species from the MoTuo reach of the Yarlung Zangbo River, southwest China: Exostoma labiatum (McClelland, 1842), Schizothorax curvilabiatus (Wu & Tsao, 1992), Nemacheilus subfusca (McClelland, 1839), and Garra kempi Hora, 1921. The a values ranged from 0.0094 (Schizothorax curvilabiatus) to 0.0151 (Exostoma labiatum), b values from 2.698 (Exostoma labiatum) to 2.974 (Schizothorax curvilabiatus), and r(2) values from 0.976 (Nemacheilus subfusca) to 0.995 (Schizothorax curvilabiatus). A total of 427 fish specimens were collected by electrofishing in April 2015, with LWRs previously unknown to FishBase for four of the species. New maximum lengths are recorded in FishBase for three of these species: Schizothorax curvilabiatus, Nemacheilus subfusca, and Garra kempi.