HomeFish encyclopediaRay-finned fishesSalmonsSalmonidsEast Siberian grayling East Siberian grayling (Thymallus pallasii) Scientific name: Thymallus pallasii Valenciennes, 1848 The East Siberian grayling (Thymallus pallasii) is a freshwater fish of the family Salmonidae. Native range: Europe, Russia. Species factsScientific nameThymallus pallasiiFamilySalmonidae (Salmonids)OrderSalmoniformes (Salmons)ClassActinopterygii (Ray-finned fishes)Maximum length44.0EnvironmentFreshwater; brackish; benthopelagicClimateTemperateDistributionEurope: Russia.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