分類 / Names
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Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Trematominae
Etymology: Trematomus: Greek, trematos = hole + Greek, tomo = section, cut (Ref. 45335); nicolai: Named after Nicolai Hanson, biologist and collector of Southern Cross fishes, died at Cape Adare during the 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
生態学
海 底生の; 深さの範囲 1 - 420 m (Ref. 11892). Polar; 65°S - 78°S
Southern Ocean: East Antarctica (some localities), but not from the Peninsula region and westward to the Ross Sea. Coasts of Adelie Land, Davis, Weddell, South Shetland and South Orkney Islands.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 36.0 cm TL オス/雌雄の選別がない; (Ref. 5179); 最大公表体重: 0.00 g
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 4 - 5; 臀鰭: 31 - 35. Body brownish, more or less distinct dark crossbars, scattered small dark spots, fins dusky, spiny dorsal blackish (Ref. 11892).
A nearshore benthic species usually abundant in shelf waters of East Antartica (Ref. 122792). Adults feed primarily on amphipods, other fishes, and molluscan larvae, with lesser amount of polychaetes and mysids. They capture some prey in the water column, but are not cryopelagic.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
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)
Human uses
水産業: 興味がない
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): -1.8 - -0.4, mean -1.4 °C (based on 382 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00419 - 0.00951), b=3.21 (3.08 - 3.34), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.6 ±0.53 se; based on food items.
Generation time: 13.7 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (Fec = 8,900).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (51 of 100).
