HomeFish encyclopediaRay-finned fishesFlatfishesRighteye floundersDover sole Dover sole (Microstomus pacificus) Scientific name: Microstomus pacificus Lockington, 1879 The Dover sole (Microstomus pacificus) is a marine fish of the family Pleuronectidae. Native range: Eastern Pacific, Navarin Canyon in the Bering Sea to Stalemate Bank in the Aleutian Islands and San Cristobal Bay, Baja California, Mexico. BiologyOccurs on mud bottom. Moves into deep water in winter. Produces large amounts of slime which may cover other fishes when caught in trawls. Marketed as mink food or as fillet.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicrostomus pacificusFamilyPleuronectidae (Righteye flounders)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length76.0Common length40.0Depth range10–1370 m (33–4495 ft)EnvironmentMarine; demersal; depth range 10 - 1370 mClimateTemperateDistributionEastern Pacific: Navarin Canyon in the Bering Sea to Stalemate Bank in the Aleutian Islands and San Cristobal Bay, Baja California, Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceLow, minimum population doubling time 4.5 - 14 years (tm=5; tmax=53; K=0.26; Fec=37,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026