Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Salmoniformes
(Salmons) > Salmonidae
(Salmonids) > Coregoninae
Etymology: Coregonus: Greek, kore = pupils of the eye + Greek, gonia = angle (Ref. 45335).
Environment / Climate / Range
Freshwater; benthopelagic. Temperate, preferred ?
Europe: Lake Onega in Russia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 39.0 cm SL male/unsexed; (Ref. 59043); max. reported age: 19 years (Ref. 59043)
Morphology | Morphometrics
Diagnosed from other cisco species in Europe by possessing the following characters: in life and shortly after death, head and body dark grey to black with violet iridescences; eye diameter 22-27% HL; lateral line straight; and gill rakers 41-46. Differs from sympatric Coregonus albula in Lake Onega by having all fins dark grey to black (vs. hyaline), eggs dark yellowish pink (vs. pale yellow); and usually attaining maturity at 20 cm SL (vs. 9-12 cm SL) (Ref. 59043).
Found in lakes at all depths. Preys on zooplankton and small benthos during juvenile stage and switches to fish diet at 17-20 cm SL. Life span ranges from 7-9 years, with exceptional records up to 19 years (Ref. 59043).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00256 - 0.01076), b=3.22 (3.06 - 3.38), based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (tm=4-6).
Vulnerability (Ref. 59153
): High vulnerability (57 of 100) .