Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range - 91 m (Ref. 2850), usually - m (Ref. ). Temperate; 0°C -
North Pacific: Kamchatka, Russia through the Aleutian chain and the Bering Sea to the Bering Strait coasts of Alaska and Humboldt Bay, California, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 42.0 cm TL male/unsexed; (Ref. 2850)
Morphology | Morphometrics
(total): 61 - 62;
soft rays: 44 - 51. Caudal rounded (Ref. 6885). Pale brown with white to cream markings, paler below; irregular light areas on upper part of body, and vertical light bars below; dark bars run down from eyes; prominent dark bars on the dorsal, caudal and anal fins (Ref. 6885).
Usually among seaweed on rocky bottoms (Ref. 2850); in reef crevices, usually among algae (Ref. 51666). Occurs in subtidal areas to 91 m depth (Ref. 2850).
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. 124695)
Threat to humans
Aquarium: public aquariums
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 4.1 - 10.4, mean 8 °C (based on 180 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00150 - 0.00963), b=3.16 (2.94 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (64 of 100) .