HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersBarfin flounder Barfin flounder (Verasper moseri) Scientific name: Verasper moseri Jordan & Gilbert, 1898 The Barfin flounder (Verasper moseri) is a marine fish of the family Pleuronectidae. Native range: Northwest Pacific, Pacific coast of northern Japan, northern part of the Sea of Japan, the Tatar Strait, southern Sea of Okhotsk and the Kuril Islands. Species factsScientific nameVerasper moseriFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length70.0Depth range1–900 m (3–2953 ft)EnvironmentMarine; demersal; depth range 1 - 900 mClimateTemperateDistributionNorthwest Pacific: Pacific coast of northern Japan, northern part of the Sea of Japan, the Tatar Strait, southern Sea of Okhotsk and the Kuril Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercialResilienceVery 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