Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale; distribuzione batimetrica 0 - ? m (Ref. 11892), usually 0 - 27 m (Ref. 11892). Polar
Southern Ocean: Kerguelen and Heard Islands.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 30.0 cm TL maschio/sesso non determinato; (Ref. 2121); common length : 20.0 cm TL maschio/sesso non determinato; (Ref. 2121)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 4 - 6; Raggi dorsali molli (totale) : 33 - 36; Raggi anali molli: 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
Pesca: di nessun interesse
Strumenti
Special reports
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Fonti Internet
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.
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Tmax=8; k=0.18; Fec=20,000).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
