Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; profondeur 0 - 930 m (Ref. 58496). Polar; 84°N - 51°N, 180°W - 180°E
Western Atlantic: Canadian Arctic to Hudson and Ungava bays and Newfoundland in Canada. Eastern Atlantic: Greenland, Iceland, Jan Mayen, Spitzbergen, Barents and Kara seas, Bohuslän in Norway (Ref. 4926). Reported from the Alaskan Beaufort Sea (Ref. 28503).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 15.7 cm SL mâle / non sexé; (Ref. 4698); common length : 7.0 cm SL mâle / non sexé; (Ref. 35388); common length :12 cm SL (female)
Épines dorsales (Total) : 7 - 10; Rayons mous dorsaux (Total) : 17 - 23; Épines anales: 0; Rayons mous anaux: 12 - 17. Yellowish with brown spots, most numerous on back; narrow stripes on soft dorsal, pectoral and caudal fins, with dark spots on fin rays (Ref. 4698). Head height equal to head width. Males with a long pointed genital papilla (Ref. 35388).
Body shape (shape guide): elongated.
Found on muddy, sandy or rocky bottoms or among algae (Ref. 4698). Maximum depth at 930 m (Ref. 58426). Benthic (Ref. 58426). Feeds on benthic polychaetes, crustaceans (Hyppolyte, Boreophausia), and large hyperiids (Phascolosoma) (Ref. 4698). Males usually below 7 cm and females below 12 cm. Lives at temperatures -1.7-10°C. Female lays 150-1,000 eggs with a diameter of 3mm (Ref. 35388).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00776 (0.00450 - 0.01340), b=3.18 (3.02 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.1 ±0.35 se; based on food items. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (40 of 100). 🛈 |
Nutriments (Ref. 124155) |
Calcium = 67 [25, 167] mg/100g; Iron = 0.491 [0.206, 1.230] mg/100g; Protein = 16.3 [14.1, 18.5] %; Omega3 = 0.407 [0.152, 1.269] g/100g; Selenium = 17.8 [6.1, 46.0] μg/100g; VitaminA = 21.2 [4.2, 104.9] μg/100g; Zinc = 0.671 [0.402, 1.188] mg/100g (wet weight); |