Environment: milieu / climate zone / depth range / distribution range
Marine; demersal. Subtropical
Southeast Atlantic: Tristan da Cunha.
Length at first maturity / Size / Weight / Age
Maturity: Lm 14.7  range ? - ? cm
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Eastman, J.T. and R.R. Eakin, 2000. An updated species list for notothenioid fish (Perciformes; Notothenioidei), with comments on Antarctic species. Arch. Fish. Mar. Res. 48(1):11-20. (Ref. 37983)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 9.3 - 15.2, mean 12.6 °C (based on 12 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5044 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00248 - 0.01110), b=3.21 (3.02 - 3.40), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.3 se; based on size and trophs of closest relatives
Generation time: 2.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (25 of 100).