HomeFish encyclopediaRay-finned fishesSalmonsSalmonidsJapanese huchen Japanese huchen (Hucho perryi) Scientific name: Hucho perryi Brevoort, 1856 The Japanese huchen (Hucho perryi) is a freshwater fish of the family Salmonidae. Native range: Northwest Pacific, Sea of Japan, from southern Kuril Islands and Primorskii Krai, Russia to Hokkaido. BiologyUsually inhabits lower and middle reaches of rivers and lakes. A sea-run form is found in the eastern coast of Hokkaido. Young feed mainly on aquatic insects while fishes more than 30 cm are completely piscivorous. Spawns in spring in river branches, where the female lays 2,000-10,000 eggs on sandy or gravelly bottom.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHucho perryiFamilySalmonidae (Salmonids)OrderSalmoniformes (Salmons)ClassActinopterygii (Ray-finned fishes)Maximum length200Common length50.0Depth range0–100 m (0–328 ft)EnvironmentMarine; freshwater; brackish; benthopelagic; anadromous; depth range 0 - 100 mClimateTemperateDistributionNorthwest Pacific: Sea of Japan, from southern Kuril Islands and Primorskii Krai, Russia to Hokkaido.Conservation status (IUCN)Critically Endangered (CR) (A4abcd)Threat to humansHarmlessUsesFisheries: minor commercial; aquaculture: experimentalResilienceVery Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026