Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien demersaal; diepte 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.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 112 cm TL mannelijk / geslacht onbekend; (Ref. 56527)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 83 - 88; Anale stekels: 0; Anale zachte stralen: 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).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Preferred temperature (Ref.
123201): -0.6 - 6.9, mean 2.3 °C (based on 1276 cells).
Fylogenetische diversiteitsindex (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).
Trofisch niveau (Ref.
69278): 3.8 ±0.4 se; based on diet studies.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Assuming tm>5).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (67 of 100).
