Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Nototheniidae
Etymology: Notothenia: Greek, noton = filament + Greek, adverbial particle, then, that denotes distance or removal (Ref. 45335). More on author: Richardson.
Environment / Climate / Range
Marine; demersal; oceanodromous (Ref. 51243); depth range 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
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 92.0 cm TL male/unsexed; (Ref. 5179); common length : 50.0 cm TL male/unsexed; (Ref. 2121); max. published weight: 10.0 kg (Ref. 5179); max. reported age: 16 years (Ref. 28106)
Southern Ocean: northern end of the Antarctic Peninsula, Scotia Arc, Prince Edward, Crozet, Kerguelen, Heard and Macquarie islands, and Ob' and Lena banks.
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).
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.
IUCN Red List Status (Ref. 90363)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00661 (0.00515 - 0.00849), b=3.13 (3.06 - 3.20), based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.6 se; Based on diet studies.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (K=0.10-0.16; tmax=16; Fec=19,000).
Vulnerability (Ref. 59153
): High vulnerability (63 of 100) .