Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; profondeur 10 - 1600 m. Polar; 50°S - 78°S, 143°E - 19°W (Ref. 1371)
Southern Ocean: coasts of Antarctic Peninsula, Scotia Sea (South Georgia, South Sandwich, South Orkney and South Shetland islands), Victoria Land and Ross Sea.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 27.5, range 23 - 32 cm
Max length : 35.0 cm TL mâle / non sexé; (Ref. 1371); common length : 27.0 cm TL mâle / non sexé; (Ref. 1371)
Description synthétique
Morphologie | Morphométrie
Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 135; Épines anales 0; Rayons mous anaux: 106; Vertèbres: 69. Dorsal filament variable in length, but never longer than twice the eye diameter. Outer rays of the pelvic fins filamentous, of unequal lengths. Lateral line arched above the pectoral fin, extending to slightly beyond the pectoral fin tips. Color is uniform gray-brown, with iridescent hues.
Dwells in continental and insular shelves and slopes. Feeds on zooplankton. Synchronous spawner (Ref. 50743).
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: intérêt commercial mineur
Plus d'informations
Taille/ÂgeCroissanceLongueur-poidsLongueur-longueurFréquences de longueursMorphométrieMorphologieLarvesDynamique des populations larvairesRecrutementAbondanceBRUVS
RéférencesAquacultureProfil d'aquacultureSouchesGénétiqueElectrophoresesHéritabilitéPathologiesTraitementNutrientsMass conversion
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): -1.9 - 1.6, mean -0.7 °C (based on 751 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5059 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00168 - 0.01136), b=3.11 (2.89 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.4 ±0.4 se; based on diet studies.
Generation time: 4.2 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (tm=4; Fec = 85,810).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (41 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 28.6 [13.1, 61.2] mg/100g; Iron = 0.478 [0.243, 0.999] mg/100g; Protein = 16.8 [15.3, 18.2] %; Omega3 = 0.265 [0.119, 0.570] g/100g; Selenium = 17.6 [5.9, 46.3] μg/100g; VitaminA = 14 [3, 74] μg/100g; Zinc = 0.526 [0.336, 0.834] mg/100g (wet weight);
