Length–weight relationships of two schizothoracinae fish species from the Maquan River, the upper reaches of the Yarlung Zangbo River, Tibet, China

Summary Length-weight relationships (LWRs) were determined for two endemic fish species from the Maquan River, the upper of the Yarlung Zangbo River: (Ptychobarbus dipogon Regan, 1905, Schizothorax waltoni Regan, 1905). All the specimens were collected between May and September of 2014. Length–weight relationships for these two fish species were determined for the first time, and new maximum body weights were recorded for these two species. These results will be useful for fishery research, management and conservation of the Yarlung Zangbo River.