Hucho bleekeri, or the Sichuan taimen, is a species of freshwater fish in the salmon family (Salmonidae), endemic to China. Its typical habitat is mountain streams and small rivers and it is found in the catchment areas of the Dadu River in Sichuan and Qinghai Provinces, and the Hanjiang River. It is a grey fish with a silvery belly growing to a length of 72 cm (28 in). Populations of this fish are declining, it principally being threatened by habitat loss and illegal fishing, and the International Union for Conservation of Nature has rated its conservation status as "critically endangered".