Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - ? m (Ref. 11892), usually 0 - 27 m (Ref. 11892). Polar
Southern Ocean: Kerguelen and Heard Islands.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 2121); common length : 20.0 cm TL male/unsexed; (Ref. 2121)
Dorsal spines (total): 4 - 6; Dorsal soft rays (total): 33 - 36; Anal soft rays: 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).
Spawn once a year (Ref. 1071).
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 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00282 - 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).
Trophic level (Ref.
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.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Tmax=8; k=0.18; Fec=20,000).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
