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Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Trematominae
Etymology: Trematomus: Greek, trematos = hole + Greek, tomo = section, cut (Ref. 45335); scotti: Named after Captain Robert Falcon Scott, leader of British National Antarctic Expedition (Ref. 11892).
More on author: Boulenger.
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
Ecologia
marino demersale; distribuzione batimetrica 20 - 793 m. Polar; 60°S - 78°S
Southern Ocean: South Shetland, South Orkney islands, Ross Sea, Breid Bay, Weddell Sea and Antarctic Peninsula (Ref. 11892).
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 24.7 cm TL maschio/sesso non determinato; (Ref. 124149); peso massimo pubblicato: 124.60 g (Ref. 124149)
Adults feed primarily on polychaetes, euphausiids, amphipods, together with a lesser amount of isopods. Larval pelagic phase is long (Ref. 89434).
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)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesca: di nessun interesse
Informazioni ulteriori
CollaboratoriImmaginiStamps, Coins Misc.SuoniCiguateraVelocitàModalità di nuotoArea branchialeOtolithsCervelliVista
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Estimates based on models
Preferred temperature (Ref.
123201): -1.8 - 0.9, mean -0.9 °C (based on 584 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00320 - 0.00715), b=3.19 (3.07 - 3.31), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.2 se; based on diet studies.
Generation time: 11.0 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resilienza (Ref.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (47 of 100).
Nutrients (Ref.
124155): Calcium = 39.9 [21.9, 100.2] mg/100g; Iron = 0.484 [0.206, 0.969] mg/100g; Protein = 17 [16, 18] %; Omega3 = 0.44 [0.23, 0.82] g/100g; Selenium = 13.6 [5.4, 30.8] μg/100g; VitaminA = 23.9 [5.1, 116.7] μg/100g; Zinc = 0.653 [0.422, 1.002] mg/100g (wet weight); based on
nutrient studies.