Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 0 - 100 m (Ref. 50550), usually 10 - 70 m (Ref. 56527). Temperate; 88°N - 40°N, 135°E - 60°W
North Pacific: Hokkaido, Japan and Sea of Okhotsk to the Bering Sea. Arctic Canada.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 112 cm TL mâle / non sexé; (Ref. 56527)
Épines dorsales (Total): 83 - 88; Épines anales 0; Rayons mous anaux: 53 - 54. Four pairs of strong canines on anterior parts of both jaws; molar teeth on prevomerine and palatal bones and posterior part of lower jaw. Dorsal fin without soft rays. Pelvic fins absent.
Found on rocky bottoms (Ref. 559). Benthic (Ref. 58426). Feeds on hard-shelled invertebrates (Ref. 28499).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Eggs are very large.
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimates based on models
Preferred temperature (Ref.
123201): -0.6 - 6.9, mean 2.3 °C (based on 1276 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5938 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00174 - 0.00913), b=3.17 (2.97 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.8 ±0.4 se; based on diet studies.
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Assuming tm>5).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (67 of 100).