[Population resources and fishery management policies of Schizopygopsis younghusbandi in the Yarlung Zangbo River, China.].

Schizopygopsis younghusbandi, an endemic species in China, is threatened by overfi-shing and biological invasion. With 694 individuals collected during August 2008 to August 2009 from the Xietongmen to Nimu of Yarlung Zangbo River, Tibet, the population resources and fishery management policies of the fish were studied using per-recruit models. The total instantaneous annual mortality (Z) of S.