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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
Écologie
marin; profondeur 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.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 17.2 cm SL mâle / non sexé; (Ref. 11892)
Épines dorsales (Total) : 4 - 5; Rayons mous dorsaux (Total) : 29 - 32; Rayons mous anaux: 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.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): -1.9 - -1.2, mean -1.8 °C (based on 236 cells).
Phylogenetic diversity index (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).
Niveau trophique (Ref.
69278): 3.1 ±0.28 se; based on food items.
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (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);
