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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
البيئة
بحري قاعية المعيشة; نطاق العمق 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.
الحجم / وزن / العمر
Maturity: Lm ? range ? - ? cm
Max length : 31.0 cm TL ذكر/ مختلط الجنس; (Ref. 5179); أعلا وزن تم نشرة: 276.30 g (Ref. 124149)
الأشواك الظهرية (المجموع) : 6 - 7; الأشعة الظهرية الناعمة (المجموع) : 31 - 33; أشعه شرجية لينه: 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)
IUCN Red List Status (Ref. 130435: Version 2024-1)
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Preferred temperature (Ref.
123201): -1.8 - 1.1, mean -0.9 °C (based on 763 cells).
Phylogenetic diversity index (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).
مستوى غذائي (Ref.
69278): 3.8 ±0.2 se; based on diet studies.
المرونه (Ref.
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (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.
