HomeFish encyclopediaSharks and RaysBramble, Sleeper and Dogfish sharksDogfish sharksSpotted spiny dogfish Spotted spiny dogfish (Squalus suckleyi) Scientific name: Squalus suckleyi Girard, 1855 The Spotted spiny dogfish (Squalus suckleyi) is a brackish-water fish of the family Squalidae. BiologyThe species appears to prefer water temperatures between 7 and 15?C, and often makes longitudinal and depth migrations to follow this temperature preference. Edible but not appreciated..Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSqualus suckleyiFamilySqualidae (Dogfish sharks)OrderSqualiformes (Bramble, Sleeper and Dogfish sharks)ClassElasmobranchii (Sharks and Rays)Maximum length130Depth range15–110 m (49–361 ft)EnvironmentMarine; brackish; benthopelagic; depth range 15 - 110 mClimateSubtropicalDistributionNorth Pacific: Korea, Japan, northward to Russia (Kamchatka, Sea of Okhotsk and Sakhalin), the Bering Sea and the Aleutian Islands; eastwards in the Gulf of Alaska, British Columbia and Washington south to southern Baja California.Conservation status (IUCN)Not EvaluatedThreat to humansHarmless SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026