Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin démersal; océanodrome (Ref. 51243); profondeur 1 - 1010 m (Ref. 114491). Polar; 45°S - 78°S, 180°W - 180°E
Circumpolar south of Antarctic Polar Front, but not found in Ross Sea; adults only in higher latitudes (South Orkneys, South Shetlands, Peter Island) and south of the Weddell-Scotia confluence, but adults and juveniles in the region of South Sandwich I, South Georgia and Bouvet. Reported from off the Cape, South Africa and from 43°17'S, 48°55'E (Ref. 4066).
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 7.4  range ? - ? cm
Max length : 11.5 cm SL mâle / non sexé; (Ref. 114491); 10.3 cm SL (female); poids max. publié: 15.00 g (Ref. 124149); âge max. reporté: 4 années (Ref. 94119)
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 14 - 16; Épines anales: 0; Rayons mous anaux: 19 - 22.
Body shape (shape guide): fusiform / normal.
Oceanic and mesopelagic, found in the upper 100 m south of the Antarctic Polar Front but deeper northwards (Ref. 4066). Adults take more euphausiids and also prey upon polychaetes. The diet of juveniles of less than 6 cm SL consists mainly of copepods, with some euphausiids and hyperiids. Possibly the most common myctophid occurring south of the Antarctic Polar Front.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Hulley, P.A., 1990. Myctophidae. p. 146-178. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5182)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00851 (0.00473 - 0.01530), b=3.07 (2.91 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.2 ±0.4 se; based on diet studies. |
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Generation time |
6.5 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.17-0.25; tmax=11). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (41 of 100). 🛈 |
Nutriments (Ref. 124155) |
Calcium = 63.5 [23.8, 202.8] mg/100g; Iron = 0.649 [0.225, 1.681] mg/100g; Protein = 15.4 [13.5, 17.5] %; Omega3 = 0.92 [0.39, 2.31] g/100g; Selenium = 13.9 [4.6, 38.8] μg/100g; VitaminA = 49.6 [8.9, 301.0] μg/100g; Zinc = 0.657 [0.347, 1.130] mg/100g (wet weight); based on nutrient studies. |