Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; diepte 350 - 3000 m (Ref. 1371), usually 1200 - 2700 m (Ref. 5951). Deep-water; 70°N - 68°S, 180°W - 180°E
Circumglobal: Except the North Pacific north of 10°N. Reported from the Walvis Ridge and near the Discovery and Meteor seamounts (Ref. 44938).
Lengte bij maturiteit / Grootte / Gewicht / Leeftijd
Maturity: Lm 42.0, range 41 - 43 cm
Max length : 75.0 cm SL mannelijk / geslacht onbekend; (Ref. 5208); max. gepubliceerd gewicht: 3.3 kg (Ref. 128737); max. gepubliceerd gewicht: 3.3 kg; max. gerapporteerde leeftijd: 44 Jaren (Ref. 128738)
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 55 - 61; Anale stekels: 0; Anale zachte stralen: 36 - 44; Wervels: 57 - 60. Blue-grey to blackish (Ref. 6606).
Found on the continental slope and upper rise (Ref. 6606). Epibenthic (Ref. 58426) and benthopelagic (Ref. 5951). Deep waters to 3277 m (Ref. 58426). May move offshore with age and spawn in the deep parts of its range. Off the eastern coast of United States, it is speculated that the population use the area only as feeding grounds with spawning taking place to the north. Feed on benthic invertebrates (Ref. 9319). Maximum weight of female from Ref. 128738.
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990. FAO species catalogue. Vol. 10. Gadiform fishes of the world (Order Gadiformes). An annotated and illustrated catalogue of cods, hakes, grenadiers and other gadiform fishes known to date. FAO Fish. Synop. 125(10). Rome: FAO. 442 p. (Ref. 1371)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel
Tools
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Estimates based on models
Preferred temperature (Ref.
123201): 1.9 - 4.6, mean 2.9 °C (based on 4347 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00267 - 0.00411), b=3.15 (3.08 - 3.22), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.6 ±0.47 se; based on food items.
Weerstandsvermogen (Ref.
120179): Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (K=0.05-1.0; tm=15; tmax=44).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (70 of 100).
Climate Vulnerability (Ref.
125649): Moderate vulnerability (38 of 100).
Nutrients (Ref.
124155): Calcium = 19.8 [5.7, 48.2] mg/100g; Iron = 0.264 [0.114, 0.738] mg/100g; Protein = 17.6 [15.8, 19.4] %; Omega3 = 0.114 [0.044, 0.291] g/100g; Selenium = 25.8 [8.1, 70.4] μg/100g; VitaminA = 19.4 [2.2, 160.1] μg/100g; Zinc = 0.507 [0.276, 1.026] mg/100g (wet weight);