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Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Trematominae
Etymology: Trematomus: Greek, trematos = hole + Greek, tomo = section, cut (Ref. 45335); lepidorhinus: lepidorhinus from Greek, lepido means scale; rhinus means snout (Ref. 11892).
Issue
The genus Pseudotrematomus is a synonym of Trematomus, which is confirmed by a molecular study to be published (J.-C. Hureau, pers. comm. 08 Jun. 2010).
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathydemersaal; diepte 200 - 800 m. Deep-water; 60°S - 78°S, 180°W - 180°E
Southern Ocean: inner slope and continental shelf of Antarctica, except the Antarctic Peninsula. Two specimens are reported from South Orkney islands.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 31.0 cm TL mannelijk / geslacht onbekend; (Ref. 5179); max. gepubliceerd gewicht: 276.30 g (Ref. 124149)
Dorsale stekels (totaal) : 6 - 7; Dorsale zachte stralen (totaal) : 31 - 33; Anale zachte stralen: 34 - 36. Brownish with irregular indistinct darker crossbars, spinous dorsal blackish. Mouth and branchial cavities blackish (Ref. 11892).
Adults feed on amphipods (mostly Themisto gaudichaudii), copepods, polychaetes, and mysids.
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: Version 2024-1)
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): -1.8 - 1.1, mean -0.9 °C (based on 763 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00285 - 0.00638), b=3.22 (3.10 - 3.34), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.8 ±0.2 se; based on diet studies.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Fec = 2,200).
Fishing Vulnerability (Ref.
59153): High vulnerability (62 of 100).
Nutrients (Ref.
124155): Calcium = 24.9 [14.7, 63.2] mg/100g; Iron = 0.463 [0.191, 0.925] mg/100g; Protein = 17.2 [16.1, 18.3] %; Omega3 = 0.406 [0.222, 0.713] g/100g; Selenium = 14.9 [6.1, 36.2] μg/100g; VitaminA = 29.1 [6.2, 142.1] μg/100g; Zinc = 0.473 [0.306, 0.729] mg/100g (wet weight); based on
nutrient studies.
