Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; profondeur 124 - 769 m (Ref. 27437). Deep-water; 49°N - 27°N, 126°W - 114°W
Eastern Pacific: Washington, USA to central Baja California, Mexico.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 35.0, range 30 - 36 cm
Max length : 70.0 cm TL mâle / non sexé; (Ref. 40637); poids max. publié: 3.5 kg (Ref. 40637); âge max. reporté: 90 années (Ref. 52679)
Épines dorsales (Total): 13; Rayons mous dorsaux (Total): 12-15; Épines anales 3; Rayons mous anaux: 6 - 8; Vertèbres: 26. Head spines strong - nasal, preocular, supraocular, postocular, tympanic, parietal and nuchal spines present, coronals absent (Ref. 27437). Body dark red, skin above upper jaw, inside of mouth and rear edge of gill cover black (Ref. 27437). Branchiostegal rays: 7 (Ref. 36715).
Found on soft bottom in deep water, but young in shallower areas (Ref. 2850). Juveniles are pelagic (Ref. 36715). Viviparous, with planktonic larvae (Ref. 36715).
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)
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): 6.7 - 9.9, mean 7.8 °C (based on 14 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).
Niveau trophique (Ref.
69278): 3.8 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (tmax=90; tm=20; K=0.04-0.06).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (71 of 100).