Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic. Deep-water
Southeast Atlantic: Namibia (Ref. 27121) and off the western Cape coast, South Africa. Southwest Pacific: New Zealand.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 120 cm TL male/unsexed; (Ref. 2713)
Morphology | Morphometrics
(total): 142-147. Adult specimens preserved in alcohol are tan in color; front of head with triangular dark area extending onto lips and gular region; posterior dorsal rays black; caudal fin black, base of fin pale (Ref. 2713).
Mesopelagic species (Ref. 27121).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Heemstra, P.C. and S.X. Kannemeyer, 1986. Trachipteridae. p. 399-402. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 2713)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.3 - 3.6, mean 2.8 °C (based on 173 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7510 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): High vulnerability (63 of 100) .