Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien demersaal; oceanodroom (Ref. 51243); diepte 25 - 600 m (Ref. 35388), usually 100 - 400 m. Temperate; 81°N - 42°N, 71°W - 59°E
Northwest Atlantic: western Greenland and Nova Scotia in Canada to Massachusetts in USA and perhaps to New Jersey, USA (Ref. 7251). Northeast Atlantic: Spitsbergen southward to Scandinavian coasts (to about Bergen, also Iceland and south-eastern coasts of Greenland.
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm 55.0, range 50 - 60 cm
Max length : 180 cm TL mannelijk / geslacht onbekend; (Ref. 7251); common length : 120 cm TL mannelijk / geslacht onbekend; (Ref. 4694); max. gepubliceerd gewicht: 27.9 kg (Ref. 40637)
Coloration greyish brown with many distinct spots on body and dorsal fin (Ref. 35388).
Inhabits offshore waters over soft bottoms, often with boulders, from 25-590 m, but most common from 100-400 m (Ref. 4694). Benthic (Ref. 58426). Feeds mainly on echinoderms, but also crustaceans, mollusks, fishes (Ref. 4694) and worms (Ref. 58426). In Barents sea, it reached at least 80 cm, age 9 years. Marketed fresh or as frozen fillets. Leather can be made of the skin (Ref. 35388).
Spawning happens between the months of September and January at 250 m depth. Females lay great egg bunches in nests built on the ground. The size of the eggs increases with the size of the female. Egg size 5-6 mm, larval length at hatching 21-24 mm.
Barsukov, V.V., 1986. Anarhichadidae. p. 1113-1116. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. volume 3. UNESCO, Paris. (Ref. 4694)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van minder commercieel belang; sportvis: ja
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 0.6 - 7.6, mean 3.5 °C (based on 717 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5938 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00183 - 0.00626), b=3.19 (3.02 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.8 ±0.62 se; based on food items.
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (K=0.06-0.13; tm=8; Fec=4,200-35,200).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (80 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (43 of 100).
Nutrients (Ref.
124155): Calcium = 8.11 [3.54, 32.55] mg/100g; Iron = 0.203 [0.091, 0.584] mg/100g; Protein = 17.1 [15.0, 19.6] %; Omega3 = 0.368 [0.214, 0.619] g/100g; Selenium = 39.4 [11.9, 113.9] μg/100g; VitaminA = 8.93 [2.81, 30.45] μg/100g; Zinc = 0.569 [0.222, 1.133] mg/100g (wet weight);
