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Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Nototheniinae
Etymology: Notothenia: Greek, 'notos', ou; νοτος, ου), from the south + Greek, 'e 'eutheneia',as or 'euthenia', as (ευθενεια, ας; ευθενια, ας), abundance (P. Romero, pers.comm. 01/16); rossii: marmorata Greek marmor for marbled (Ref. 11892).
More on author: Richardson.
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển gần đáy; Ở đại duơng, biển (Ref. 51243); Mức độ sâu 5 - 350 m (Ref. 28106), usually 5 - 350 m (Ref. 28106). Polar; -1°C - 5°C (Ref. 28106); 45°S - 67°S, 75°W - 165°E
Southern Ocean: northern end of the Antarctic Peninsula, Scotia Arc, Prince Edward, Crozet, Kerguelen, Heard and Macquarie islands, and Ob' and Lena banks.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm 49.3 range ? - ? cm
Max length : 92.0 cm TL con đực/không giới tính; (Ref. 5179); common length : 50.0 cm TL con đực/không giới tính; (Ref. 2121); Khối lượng cực đại được công bố: 10.0 kg (Ref. 5179); Tuổi cực đại được báo cáo: 16 các năm (Ref. 28106)
Các tia vây lưng cứng (tổng cộng) : 4 - 7; Các vây lưng mềm (tổng cộng) : 32 - 36; Tia mềm vây hậu môn: 26 - 30.
The sexually immature members of the population stay in lesser depths, mainly in the shallow fjord bays. Yearlings feed mainly on mesozooplankton in the near surface zone (5-15 m). Immature and mature fish are benthic but stay in shallower depths (10-20 m). Sexually mature fish move out of the fjord to stay in the shelf zone. Spawn once a year (Ref. 89316). Maximum life span for males is 12 years (Ref. 28106).
Mature females may spawn for the first time from around 6-8 years of age (Ref. 71843).
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)
Threat to humans
Harmless
Human uses
Các nghề cá: Tính thương mại
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Estimates based on models
Preferred temperature (Ref.
123201): 0.7 - 4.7, mean 2.1 °C (based on 140 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00480 - 0.00723), b=3.19 (3.13 - 3.25), in cm total length, based on LWR estimates for this species (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.6 ±0.56 se; based on food items.
Generation time: 8.5 (6.1 - 9.8) years. Estimated as median ln(3)/K based on 17
growth studies.
Thích nghi nhanh (Ref.
120179): thấp, thời gian nhân đôi của chủng quần tối thiểu là 4.5 - 14 năm (K=0.10-0.16; tmax=16; Fec=19,000).
Fishing Vulnerability (Ref.
59153): High vulnerability (63 of 100).
Climate Vulnerability (Ref.
125649): Moderate to high vulnerability (54 of 100).
Nutrients (Ref.
124155): Calcium = 16.7 [10.3, 37.7] mg/100g; Iron = 0.427 [0.187, 0.808] mg/100g; Protein = 18.2 [15.8, 20.4] %; Omega3 = 0.316 [0.187, 0.528] g/100g; Selenium = 18.1 [8.2, 38.9] μg/100g; VitaminA = 12.2 [2.9, 56.1] μg/100g; Zinc = 0.35 [0.24, 0.52] mg/100g (wet weight);
