Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina pelagic-oceanic; djupintervall 0 - 550 m (Ref. 11892), usually 0 - 30 m (Ref. 5179). Polar; 60°S - 78°S, 180°W - 180°E
Southern Ocean: Ross, Davis and Weddell Sea, Vincennes Bay, Budd Coast, Antarctic Peninsula, South Orkney and South Shetland islands.
Storlek / Vikt / Ålder
Könsmognad: Lm ? range ? - ? cm
Max length : 28.0 cm TL hane/ej könsbestämd; (Ref. 5179)
Taggstrålar i ryggfenan (totalt) : 4 - 7; Mjukstrålar i ryggfenan (totalt) : 34 - 38; Mjukstrålar i analfenan: 30 - 35. Yellowish with dark spots, irregular crossbars. Dorsal and caudal with series of spots sometimes (Ref. 11892).
Body shape (shape guide): fusiform / normal.
A cryopelagic species associated with the underside of ice. An anti-freezing substance enable Individuals to tolerate sub-zero temperature (Ref. 33215). Adults feed on copepods and krill (Ref. 5179). Sexually mature individuals spawn once a year (Ref. 89319). Larval pelagic phase is long (Ref. 89319).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Dewitt, H.H., P.C. Heemstra and O. Gon, 1990. Nototheniidae. p. 279-331. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5179)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
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Särskilda rapporter
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Uppskattningar baserade på modeller
Önskad temperatur (Ref.
123201): -1.8 - -1, mean -1.7 °C (based on 1248 cells).
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00328 - 0.01214), b=3.20 (3.02 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.34 se; based on food items.
Generation time: 7.8 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
Resiliens (Ref.
120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Fec = 1,500-3,000).
Sårbarhet i fisket (Ref.
59153): Moderate to high vulnerability (52 of 100).
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Näringsämnen (Ref.
124155): Calcium = 30.6 [15.7, 69.2] mg/100g; Iron = 0.576 [0.269, 1.185] mg/100g; Protein = 17.1 [15.6, 18.7] %; Omega3 = 0.406 [0.217, 0.752] g/100g; Selenium = 11.5 [4.2, 25.6] μg/100g; VitaminA = 28.7 [6.0, 141.0] μg/100g; Zinc = 0.58 [0.38, 0.90] mg/100g (wet weight); based on
nutrient studies.
