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Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Trematominae
Etymology: Trematomus: Greek, trematos = hole + Greek, tomo = section, cut (Ref. 45335); newnesi: newnesi named after Sir George Newnes, British newspaper publisher who sponsored Borchgrevinck's Expedition of 1899 (Ref. 11892).
Eponymy: Sir George Newnes (1851–1910) was a British newspaper publisher and Liberal politician. He sponsored the Southern Cross Expedition (1898–1900) to Antarctica. (Ref. 128868), visit book page.
More on author: Boulenger.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien demersaal; diepte 0 - 400 m (Ref. 11892). Polar; 60°S - 78°S
Southern Ocean: East Antarctic, Weddell Sea, West coast of Antarctic Peninsula, South Shetland Islands, Elephant Island, South Orkney Islands, Mac Robertson, George V, Queen Mary, Adelie Coasts, Davis Sea and Ross Sea.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 24.5 cm TL mannelijk / geslacht onbekend; (Ref. 58849)
Dorsale stekels (totaal) : 5 - 8; Dorsale zachte stralen (totaal) : 29 - 38; Anale zachte stralen: 29 - 36.
Body shape (shape guide): fusiform / normal.
Found in shallow near shore areas and more commonly in the intertidal zone. Adults feed mainly on amphipods, polychaetes, gastropods, isopods, copepods, and euphausiids (E. superba). Often seen feeding in the water column or at the undersurface of ice.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | 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: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00537 (0.00282 - 0.01024), 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) |
3.2 ±0.2 se; based on diet studies. |
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Generation time |
3.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Fec = 2,300-12,200). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low to moderate vulnerability (28 of 100). 🛈 |