Environment: milieu / climate zone / نطاق العمق / distribution range
البيئة
بحري القاع; نطاق العمق 0 - ? m (Ref. 11892), usually 0 - 27 m (Ref. 11892). Polar
Southern Ocean: Kerguelen and Heard Islands.
الحجم / وزن / العمر
النضج: Lm ? range ? - ? cm
Max length : 30.0 cm TL ذكر/ مختلط الجنس; (Ref. 2121); common length : 20.0 cm TL ذكر/ مختلط الجنس; (Ref. 2121)
الأشواك الظهرية (المجموع) : 4 - 6; الأشعة الظهرية الناعمة (المجموع) : 33 - 36; أشعه شرجية لينه: 30 - 34. Uniformly brownish but with darker markings or uniformly black. Prominent acoustico-lateralis channel on the head, absence of connecting orbital branches of the ethmoid, short frontal and narrow parasphenoid (Ref. 11892).
Body shape (shape guide): fusiform / normal.
Spawn once a year (Ref. 1071).
Life cycle and mating behavior
النضج | التكاثر | وضع البيض | بيض | الخصوبة | Larvae
Hureau, J.-C., 1985. Family Notothenidae - Antarctic rock cods. p. 323-385. In W. Fischer and J.C. Hureau (eds.) FAO species identification sheets for fishery purposes. Southern Ocean (Fishing areas 48, 58 and 88) (CCAMLR Convention Area). Rome, FAO. Vol. 2. (Ref. 2121)
IUCN Red List Status (Ref. 130435: Version 2024-2)
استخدامات بشرية
مصائد: غير ذات اهمية
أدوات
تقارير خاصة
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مصادر علي الأنترنت
Estimates based on models
Phylogenetic diversity index (مرجع
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00282 - 0.01229), b=3.23 (3.05 - 3.41), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
مستوى غذائي (مرجع
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Generation time: 5.9 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
المرونه (مرجع
120179): وسيط, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع 1.4-4.4 سنة (Tmax=8; k=0.18; Fec=20,000).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
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