Actinopteri (ray-finned fishes) > Perciformes/Cottoidei
(Sculpins) > Cottidae
Etymology: Comephorus: Greek,kome, es = long hair + Greek, pherein = to carry (Ref. 45335). More on author: Pallas.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic; potamodromous (Ref. 51243); depth range - 1600 m (Ref. 26334), usually - m (Ref. ). Boreal; 4°C - 18°C (Ref. 2059)
Asia: Lake Baikal, Russia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 18 - ? cm
Max length : 21.0 cm TL male/unsexed; (Ref. 12480)
Morphology | Morphometrics
Prefers deep waters but the females and occasionally the males may be found on the surface. Depth of distribution in January and February is 150-250 m; 100-120 m in March and April. Feeds mainly on the amphipod Macrohectopus branickii. Spawns in July to October. Fat content of the body is about 25%. The dead fish does not sink but float up to the surface and freeze into ice. In spring, they are cast ashore by the waves (Ref. 26334).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Timoshkin, O.A., 1995. Guide and key to pelagic animals of Baikal. Novosibirsk "Nauka", Siberian Publishing Firm RAS. (Ref. 12480)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00300 - 0.01523), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.53 se; based on food items.
Generation time: 4.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (tm=5; K=0.25).
Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100) .