Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino demersale; distribuzione batimetrica 5 - 770 m. Polar; 53°S - 65°S, 67°W - 4°E
Southern Ocean: in the vicinity of Bouvet Island, Scotia Sea, and northern part of the Antarctic Peninsula.
Length at first maturity / Size / Peso / Age
Maturità: Lm 44.9  range ? - ? cm
Max length : 72.0 cm TL maschio/sesso non determinato; (Ref. 4883); common length : 50.0 cm TL maschio/sesso non determinato; (Ref. 2805); peso massimo pubblicato: 3.7 kg (Ref. 4883)
Adults feed mostly on fish and krill. Synchronous spawner (Ref. 50743). Larvae have a long pelagic phase (Ref. 71843). Utilized as a food fish (Ref. 4931).
There is only one generation of oocytes in the ovaries indicative of determinate fecundity (Ref. 50743). Mature females may spawn for the first time from around 6-8 years of age (Ref. 71843).
Hureau, J.-C., 1985. Channichthyidae. p. 261-277. In W. Fischer and J.C. Hureau (eds.) FAO species identification sheets for fishery purposes. Southern Ocean (Fishing areas 48, 58 and 88). Rome. Vol. 2. (Ref. 2805)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesca: scarso interesse commerciale
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Fonte Biblio.
123201): -1.3 - 1.6, mean 0 °C (based on 42 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00079 - 0.00110), b=3.48 (3.43 - 3.53), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.4 ±0.2 se; based on diet studies.
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (K=0.17-0.24; Fec = 7,358).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
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Climate Vulnerability (Ref.
125649): High to very high vulnerability (75 of 100).
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Nutrients (Ref.
124155): Calcium = 24.2 [13.5, 53.3] mg/100g; Iron = 0.45 [0.19, 0.91] mg/100g; Protein = 17.3 [15.2, 19.4] %; Omega3 = 0.23 [0.12, 0.43] g/100g; Selenium = 23.3 [9.2, 53.9] μg/100g; VitaminA = 10.8 [2.2, 52.1] μg/100g; Zinc = 0.364 [0.235, 0.556] mg/100g (wet weight); based on
nutrient studies.