HomeFish encyclopediaRay-finned fishesSalmonsSalmonidsBloater Bloater (Coregonus hoyi) Scientific name: Coregonus hoyi Milner, 1874 The Bloater (Coregonus hoyi) is a freshwater fish of the family Salmonidae. BiologyOccurs in large lakes. Belongs to C. artedi complex.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCoregonus hoyiFamilySalmonidae (Salmonids)OrderSalmoniformes (Salmons)ClassActinopterygii (Ray-finned fishes)Maximum length37.0Common length25.5Depth range30–189 m (98–620 ft)EnvironmentFreshwater; demersal; depth range 30 - 189 mClimateTemperateDistributionNorth America: found only in Great Lakes (except Lake Erie) in Canada-USA and Lake Nipigon in Canada. This species is probably extirpated from Lakes Ontario and Nipigon, threatened in Lake Michigan, and declining in Lakes Superior and Huron.Conservation status (IUCN)Vulnerable (VU) (D2)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=3; k=0.22) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026