Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 50 - 854 m (Ref. 52581). Subtropical; 28°S - 50°S, 180°W - 180°E
Circumglobal in southern waters: (Ref. 7300): South Africa, Australia, New Zealand, Kermadec I., Desventuradas Is., Juan Fernandez Is., Chile, north to southern Brazil, Tristan da Cunha.
Length at first maturity / Taille / Poids / Âge
Maturity: Lm 88.0 range ? - ? cm
Max length : 160 cm TL mâle / non sexé; (Ref. 89467); common length : 100.0 cm TL mâle / non sexé; (Ref. 9258); poids max. publié: 100.0 kg (Ref. 4537); âge max. reporté: 60 années (Ref. 41439)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 9 - 12; Rayons mous dorsaux (Total) : 12; Épines anales: 3; Rayons mous anaux: 7 - 9.
A deepwater species, occurs in seamounts (Ref. 89357). Adults occur generally over rough ground from the central shelf (about 100 m) to the shelf edge and down to the upper slope. Juveniles are found in surface waters, perhaps school in association with drifting weed. Feed on barracouta and pilchards, in addition to various bottom-dwelling fish. Are primary gonochorists (Ref. 58421). Preyed upon by sperm whales (Ref. 9072). It is taken by droplining down to 400 m, and is sometimes seen in the trawled catch. Utilized fresh and frozen; can be steamed, fried, broiled, boiled, microwaved and baked (Ref. 9988). Severely overfished (Ref. 89357).
Are primary gonochorists (Ref. 58421).
Paxton, J.R., D.F. Hoese, G.R. Allen and J.E. Hanley, 1989. Pisces. Petromyzontidae to Carangidae. Zoological Catalogue of Australia, Vol. 7. Australian Government Publishing Service, Canberra, 665 p. (Ref. 7300)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial; pêche sportive: oui
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 8.6 - 16, mean 11.7 °C (based on 143 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.8125 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00765 - 0.01501), b=3.00 (2.90 - 3.10), in cm total length, based on LWR estimates for this species (Ref.
93245).
Niveau trophique (Ref.
69278): 4.5 ±0.77 se; based on food items.
Résilience (Ref.
120179): Très faible, temps minimum de doublement de population supérieur à 14 ans (tm=10-13; tmax=60).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
Climate Vulnerability (Ref.
125649): High to very high vulnerability (70 of 100).
Nutrients (Ref.
124155): Calcium = 34 [20, 61] mg/100g; Iron = 0.904 [0.538, 1.528] mg/100g; Protein = 21 [20, 22] %; Omega3 = 0.563 [0.318, 1.046] g/100g; Selenium = 55.6 [29.6, 108.8] μg/100g; VitaminA = 9.09 [3.16, 24.94] μg/100g; Zinc = 0.368 [0.267, 0.532] mg/100g (wet weight); based on
nutrient studies.
