HomeMarine aquarium fishOther marine fishTidepool sculpin Tidepool sculpin (Oligocottus maculosus) Scientific name: Oligocottus maculosus Girard, 1856 The Tidepool sculpin (Oligocottus maculosus) is a marine fish of the family Cottidae. Native range: North Pacific, Sea of Okhotsk and the Bering Sea to Los Angeles County, USA, but records west of the Gulf of Alaska doubtful. BiologyDorsal spines (total): 8 - 9; Dorsal soft rays (total): 16-18; Anal spines: 0; Anal soft rays: 12 - 14. Caudal fin rounded;.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOligocottus maculosusFamilyCottidae (Sculpins)OrderScorpaeniformes (Scorpionfishes and Flatheads)ClassActinopterygii (Ray-finned fishes)Maximum length8.9Depth range0–102 m (0–335 ft)EnvironmentMarine; demersal; non-migratory; depth range 0 - 102 mClimateTemperateDistributionNorth Pacific: Sea of Okhotsk and the Bering Sea to Los Angeles County, USA, but records west of the Gulf of Alaska doubtful.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: public aquariumsResilienceHigh, minimum population doubling time less than 15 months (K=0.21; tm=1) More other marine fishSailfin sculpinNautichthys oculofasciatusGrunt sculpinRhamphocottus richardsoniiCabezonScorpaenichthys marmoratusLongfin sculpinJordania zonopeSpotfin sculpinIcelinus tenuisNorthern spearnose poacherAgonopsis vulsaSee all other marine fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026