Coregonus


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Coregonus

 

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.

REFERENCE

Nikol’skii, G. V. Chastnaia ikhtiologiia, 3rd ed. Moscow, 1971.
References in periodicals archive ?
Density-dependent maturation, growth, and female dominance in Lake Superior Lake Herring (Coregonus artedii).
The Kilch (Coregonus acronius) is considered extinct since the lake's eutrophication during the 1970s.
Zoosporic fungigrowing on egg of Coregonus larvaretus holstus.
Issyk-Kul and Naryn Interregional Department of Fisheries will release 3 million whitefish (Coregonus lavaretus ludoga Poljakow) fry in the Issyk-Kul Lake in 2014, Head of the Fisheries Department Bakytbek Asanov said.
Multiple Modes of Speciation Involved in the Parallel Evolution of Sympatric Morphotypes of Lake Whitefish (Coregonus clupeaformis, Salmonidae).
A survey of the breeding grounds for the vendance (Coregonus albula) was made in combination with a comparative isotope analysis of different caviar harvests.
Clinal variation at microsatellite loci reveals historical secondary intergradation between glacial races of Coregonus artedi (Teleostei: Coregoninae).
For example, the undercount of piscine parasites could be explained by their "escape" from moribund animals and by short duration of the parasitic phase in the leech life cycle, as evidenced by their absence in the studied structure of benthic parasites of Coregonus baicalensis [31] and Rutilus lacustris [32].
Different mercury bioaccumulation rates between sympatric populations of dwarf and normal lake whitefish (Coregonus clupeaformis) in the La Grande complex watershed, James Bay, Quebec.
In this study, Lake Whitefish (Coregonus cluspeaformis) were collected in Lake Michigan, near Muskegon, Michigan using monofilament gill nets and a semiballoon bottom trawl during April--November, 1998-2001.