Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 25 - 770 m (Ref. 6793). Temperate
North Pacific: eastern Sea of Okhotsk to Cape Navarin in the Bering Sea to Agattu Island in the Aleutian chain and Vancouver Island, British Columbia, Canada.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 24.0 cm TL male/unsexed; (Ref. 56391)
(total): 8 - 9;
soft rays: 15 - 17. Caudal fin rounded; pectoral fins rounded, reaching anus, lower rays exserted (Ref. 6885). Color brownish on upper surface, paler below; four dark saddles across back; dark bands on dorsal, caudal, and pectoral fins, the other fins are plain (Ref. 6885).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 0.7 - 6.3, mean 3.4 °C (based on 317 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00417 - 0.01047), b=3.07 (2.93 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.4 se; based on diet studies.
Generation time: 8.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (50 of 100) .