Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Cottidae
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); kolymensis: Named in reference to the basin of the Kolyma River and other rivers of Kolyma krai, where the species was found.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Temperate
Asia: Kolyma, Magadan, and Dukcha rivers in Russia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.9 cm SL male/unsexed; (Ref. 93142)
Morphology | Morphometrics
soft rays: 12 - 14;
Vertebrae: 33 - 34. Distinguished by having the following characters: length of internal ray of ventral fin very short, 15-30% of the long ray length; interorbital space wide and equal or slightly smaller than longitudinal eye diameter; palatine bones with teeth; fifth pore (pm5) of preoperculo-mandibular canal is usually paired; incomplete lateral canal with two to three autonomous segments at the end, with total number of pores from 13 + 2 + 2 + 2 to 23 + 2 + 2 (Ref. 93142).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sideleva, V.G. and A. Goto, 2012. A new species of sculplin Cottus kolymensis sp. nova (Scorpaeniformes, Cottidae) from Rivers of Kolyma. J. Ichthyol. 52(5):301-307. (Ref. 93142)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
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=0.00871 (0.00342 - 0.02217), b=3.12 (2.89 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (35 of 100) .