Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 0 - 20 m (Ref. 127764). Subtropical
Southeast Atlantic: Tristan da Cunha.
Length at first maturity / Size / Weight / Age
Maturity: Lm 14.7  range ? - ? cm
Max length : 18.9 cm TL male/unsexed; (Ref. 104812); 18.6 cm TL (female); max. published weight: 87.00 g (Ref. 104812); max. published weight: 87.00 g
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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. 130435)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
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): PD
50 = 0.5044 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00162 - 0.01121), b=3.16 (2.93 - 3.39), in cm total length, based on LWR estimates for this (Sub)family-body shape (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 vulnerability (10 of 100).