Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 26 - 476 m (Ref. 27437). Deep-water; 60°N - 32°N, 179°E - 117°W
Eastern Pacific: Semisopochnoi Island in the Aleutian chain to San Diego, California, USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm 25.0  range ? - ? cm
Max length : 39.0 cm TL male/unsexed; (Ref. 27437); max. reported age: 58 years (Ref. 39247)
Dorsal spines (total): 13; Dorsal soft rays (total): 14 - 15; Anal spines: 3; Anal soft rays: 7 - 8. Head spines strong - nasal, preocular, postocular, tympanic and parietal spines present, supraocular, coronal and nuchal spines absent (Ref. 27437). Ridge on suborbital bone just below nostril; no spines on edge of gill cover; 2nd anal fin spine longer than 3rd (Ref. 27437). Caudal slightly indented (Ref. 6885). Pink to yellow pink, yellowish pink on sides, light below; 5 to 6 vague dark markings on back, v-shaped dusky marking from eye to gill cover (Ref. 27437).
Found on soft bottoms (Ref. 2850). Viviparous (Ref. 34817).
Ovoviviparous (Ref. 6885).
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
Venomous
Human uses
Fisheries: commercial; gamefish: yes
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Estimates based on models
Preferred temperature (Ref.
123201): 3.5 - 7.8, mean 5.2 °C (based on 186 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00499 - 0.02004), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.7 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (K=0.09; tmax=58).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).