Teleostei (teleosts) >
Perciformes/Notothenioidei (Icefishes) >
Nototheniidae (Cod icefishes) > Pleuragrammatinae
Etymology: Dissostichus: Greek, disso = twice, one or other + Greek, stix, stichos =line, row (Ref. 45335); eleginoides: eleginoides deriving from the genus Eleginops for an assumed resemblance to that genus (Ref. 11892).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 2144 m (Ref. 127764), usually 70 - 1500 m (Ref. 2121). Temperate; 33°S - 66°S, 77°W - 180°E (Ref. 54228)
Southeast Pacific and Southwest Atlantic: southern Chile round the coast to Patagonia (Argentina) and the Falkland Islands. Southwest Pacific: Macquarie Island. Southern Ocean: South Georgia. Also known from sub-Antarctic islands and seamounts of the Indian sector.
Length at first maturity / Size / Weight / Age
Maturity: Lm 49.0, range 38 - 60 cm
Max length : 215 cm TL male/unsexed; (Ref. 2121); common length : 70.0 cm TL male/unsexed; (Ref. 2121); max. published weight: 9.6 kg (Ref. 58336); max. reported age: 31 years (Ref. 87879)
At 12-15 cm TL, semi-pelagic juveniles become demersal at 150-400 m depth (Ref. 55957). Adults migrate to deeper habitats at depths greater than 1,000 m (Ref. 55957). Utilized as food fish (Ref. 4931).
May spawn for the first time from around 8-10 years of age (Ref. 71843).
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 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: commercial
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Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00631 (0.00357 - 0.01114), b=3.15 (2.99 - 3.31), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245). |
Trophic level (Ref. 69278) |
4.5 ±0.8 se; based on diet studies. |
Resilience (Ref. 120179) |
Low, minimum population doubling time 4.5 - 14 years (Fec=230,000; tmax>=21). |
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Rate of population increase |
Prior r = 0.33, 95% CL = 0.21 - 0.49, Based on 1 full stock assessment. |
Fishing Vulnerability (Ref. 59153) |
Very high vulnerability (81 of 100). 🛈 |
Climate Vulnerability (Ref. 125649) |
Moderate to high vulnerability (47 of 100). 🛈 |
Price category (Ref. 80766) |
Very high.
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Nutrients (Ref. 124155) |
Calcium = 11.6 [6.5, 19.8] mg/100g; Iron = 0.335 [0.184, 0.568] mg/100g; Protein = 17.6 [15.9, 19.6] %; Omega3 = 0.744 [0.429, 1.253] g/100g; Selenium = 31.2 [16.4, 58.5] μg/100g; VitaminA = 9.39 [3.17, 28.34] μg/100g; Zinc = 0.313 [0.219, 0.453] mg/100g (wet weight); based on nutrient studies. |