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Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Trematominae
Etymology: Trematomus: Greek, trematos = hole + Greek, tomo = section, cut (Ref. 45335); brachysoma: Named after a leopard seal Hydrurga leptonyx, phoke in Greek means seal (Ref. 11892).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; diepte 0 - 429 m (Ref. 11892), usually 0 - 30 m. Polar; 61°S - 79°S
Southern Ocean: Ross Sea, Davis Sea, Wilhelm II Coast, north of Edward VII and west coast of Antarctic Peninsula.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 17.2 cm SL mannelijk / geslacht onbekend; (Ref. 11892)
Dorsale stekels (totaal) : 4 - 5; Dorsale zachte stralen (totaal) : 29 - 32; Anale zachte stralen: 26 - 30. In life yellowish brown, iridescent blue dorsally; some specimens with patches of coral pink near the head (Ref. 5179). Six dark spots on back below the dorsal fins (Ref. 11892).
A cryopelagic species associated with the underside of ice. Feeds on copepods and euphausiids.
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
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 op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): -1.9 - -1.2, mean -1.8 °C (based on 236 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00280 - 0.01029), b=3.24 (3.07 - 3.41), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.1 ±0.28 se; based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
Nutrients (Ref.
124155): Calcium = 45.5 [24.5, 107.4] mg/100g; Iron = 0.698 [0.307, 1.409] mg/100g; Protein = 17.2 [15.6, 18.7] %; Omega3 = 0.442 [0.234, 0.858] g/100g; Selenium = 10.1 [3.6, 23.3] μg/100g; VitaminA = 31.1 [6.5, 144.3] μg/100g; Zinc = 0.631 [0.419, 0.972] mg/100g (wet weight);
