HomeFish encyclopediaRay-finned fishesSalmonsSalmonidsYellow-spotted grayling Yellow-spotted grayling (Thymallus grubii flavomaculatus) Scientific name: Thymallus grubii flavomaculatus Knizhin, Antonov & Weiss, 2006 The Yellow-spotted grayling (Thymallus grubii flavomaculatus) is a freshwater fish of the family Salmonidae. Native range: Asia, Russia: Upper reaches of the large tributaries of the Lower Amur basin and some rivers flowing to the Tatar Strait, Sea of Okhotsk, and the Sea of Japan. BiologyAsia: Russia: Upper reaches of the large tributaries of the Lower Amur basin and some rivers flowing to the Tatar Strait, Sea of Okhotsk, and the Sea of Japan.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameThymallus grubii flavomaculatusFamilySalmonidae (Salmonids)OrderSalmoniformes (Salmons)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; freshwater; brackish; benthopelagic; anadromousClimateTemperateDistributionAsia: Russia: Upper reaches of the large tributaries of the Lower Amur basin and some rivers flowing to the Tatar Strait, Sea of Okhotsk, and the Sea of Japan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 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