HomeFish encyclopediaRay-finned fishesSalmonsSalmonidsKiyi Kiyi (Coregonus kiyi) Scientific name: Coregonus kiyi Koelz, 1921 The Kiyi (Coregonus kiyi) is a freshwater fish of the family Salmonidae. Species factsScientific nameCoregonus kiyiFamilySalmonidae (Salmonids)OrderSalmoniformes (Salmons)ClassActinopterygii (Ray-finned fishes)Maximum length35.0Common length25.0EnvironmentFreshwater; pelagicClimateTemperateDistributionNorth America: found only in Great Lakes (except Lake Erie), Canada-USA. This species is common in Lake Superior, extremely rare, possibly extirpated, in Lakes Huron and Ontario, and endangered in Lake Michigan.Conservation status (IUCN)Vulnerable (VU) (D2)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.51; tmax=10) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026