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a genus of fishes of the family Salmonidae. The elongate body reaches a length of 75 cm and a weight of 8 kg (rarely 16 kg); it is covered with relatively large scales. The back is dark in coloration, and the sides are silvery. The mouth is small, and the jaws are toothless.

Large groups of the fishes are present in the basin of the Arctic Ocean and in the northern parts of the Atlantic and Pacific oceans. There are migratory, lake, and river forms. The fishes are divided into three groups: those having a superior mouth (European and least ciscoes), those having a terminal mouth (arctic cisco, tugun, peled), and those having an inferior mouth (muksun, broad whitefish, C. cylindraceus, and the common whitefish). Spawning usually occurs between September and November; the roe are small and hatch before spring. The fishes feed on invertebrates and, to a lesser extent, on fishes. They are important commercially. In the USSR the largest catches are from Lakes Onega and Ladoga, Siberia and southeastern parts of the Barents Sea. The arctic cisco, ludoga whitefish, Chud whitefish, and Volkhov whitefish are bred artificially; many species have been acclimatized to various bodies of water.


Nikol’skii, G. V. Chastnaia ikhtiologiia, 3rd ed. Moscow, 1971.
References in periodicals archive ?
This may explain the fact that among our studied lakes, lakes Dridzis and Svente had a lower diversity of cladoceran species than the other lakes where Coregonus albula was not found, and the specimens were really smaller.
In some species, these physiologic effects are accompanied by a limited ability to spawn (lake whitefish, Coregonus clupeaformis, and perch, Percafluviatilis) or by reduced fry number and size (largemouth bass, Micropterus salmoides), whereas other species are able to spawn normally (longnose sucker, Catostornus catostomus, white sucker, Catostomus commersoni; and roach, Rutilus rutilus) (Karels et al.
masquinongy Mitchill, S muskellunge Family Umbridae (mudminnows) Umbra limi (Kirtland), central N mudminnow Family Osmeridae (smelt) Osmerus mordax (Mitchill), NW rainbow smelt Family Salmonidate (salmon and whitefish) Coregonus artedi LeSueur, cisco or lake herring NW C.
X Herring (Clupeidae) American shad, Alosa sapidissima X X Blueback herring, Alosa aestivalis X X Salmonidae Vendace, Coregonus albula X Lake whitefish, Coregonus clupeaformis X X Cisco, Coregonus artedi X Chinook salmon, Oncorhynchus tschawytscha X X Chum salmon, Oncorhynchus keta X Coho salmon, Oncorhynchus kisutch X Sockeye salmon, Oncorhynchus nerka X Steelhead trout, Oncorhynchus mykiss X Atlantic salmon, Salmo salar X X Landlocked salmon, Salmo salar X X Rainbow trout, Oncorhynchus mykiss X X Cutthroat trout, Oncorhynchus clarkii X Brown trout, Salmo trutta trutta X X Lake trout, Salvelinus namaycush X X Arctic charr, Savelinus alpinus alpinus X Brook trout, Salvelinus lontinalis X X Arctic grayling, Thymallus aroticus arcticus X X Pikes (Esocidae) Pike and pickerel, Esox sp.