Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 46 m (Ref. 2850). Temperate; 66°N - 32°N
Eastern Pacific: Amchitka Island, in the Aleutian chain (Ref. 27436) to La Jolla, southern California, USA.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 61.0 cm TL male/unsexed; (Ref. 27436); max. published weight: 2.1 kg (Ref. 27436); max. reported age: 18 years (Ref. 55701)
Occurs in rocky inshore areas, common on kelp beds, also on sand bottoms (Ref. 2850). Feeds on crustaceans, polychaete worms, brittle stars, mollusks, and small fishes (Ref. 28499). Young are food of steelheads and salmon (Ref. 6885). Frequently caught by shore and skiff fishers and speared by divers (Ref. 2850).
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. 130435)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial; gamefish: yes; aquarium: public aquariums
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 4.1 - 13, mean 8.6 °C (based on 128 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5159 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00361 - 0.01917), b=3.12 (2.92 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.55 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (tm=3-5; tmax=18).
Prior r = 0.23, 95% CL = 0.15 - 0.35, Based on 1 full stock assessment.
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
Nutrients (Ref.
124155): Calcium = 42.4 [17.8, 81.4] mg/100g; Iron = 0.392 [0.181, 0.862] mg/100g; Protein = 18.4 [16.4, 20.3] %; Omega3 = 0.782 [0.349, 2.160] g/100g; Selenium = 12.8 [6.9, 31.3] μg/100g; VitaminA = 11.9 [3.7, 34.9] μg/100g; Zinc = 0.52 [0.36, 0.78] mg/100g (wet weight);