Actinopteri (ray-finned fishes) > Salmoniformes
(Salmons) > Salmonidae
(Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic. Temperate; 49°N - 41°N
North 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.
Length at first maturity / Size / Weight / Age
Maturity: Lm 18.0  range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 5723); common length : 25.0 cm TL male/unsexed; (Ref. 1998); max. reported age: 10 years (Ref. 1998)
soft rays: 9 - 16;
Vertebrae: 55 - 58. Body elongate, distinctly compressed laterally, and thin, greatest body depth in front of dorsal fin. Head about 23 - 26% of total length; eye large, but shorter than snout; snout always longer than eye diameter; mouth terminal, lower jaw usually projecting beyond the upper, usually with a distinct symphyseal knob or projecting posteriorly to below the anterior half of the eye. Overall coloration silvery with pink or purple iridescence, dark on back, silvery on sides, white below; often dark on tip of lower jaw, top of head, back and on dorsal and caudal fins. Pelvic fins usually immaculate.
Inhabits open water.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00340 - 0.01021), b=3.22 (3.07 - 3.37), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.50 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.51; tmax=10).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100).
Nutrients (Ref. 124155
): Calcium = 35.7 [17.0, 67.1] mg/100g ; Iron = 0.53 [0.31, 0.91] mg/100g ; Protein = 18.9 [17.7, 19.9] % ; Omega3 = 1.44 [0.45, 4.41] g/100g ; Selenium = 16.6 [6.4, 48.7] μg/100g ; VitaminA = 9.22 [2.91, 28.19] μg/100g ; Zinc = 0.844 [0.585, 1.212] mg/100g (wet weight);