Actinopteri (ray-finned fishes) > Alepocephaliformes
(Slickheads and tubeshoulders.) > Alepocephalidae
Etymology: Asquamiceps: Greek, a = without + Latin, squama, -ae = scale + Latin, ceps = head (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range - 2740 m (Ref. 4460), usually - m (Ref. ). Deep-water; 0°C - ; 32°N - 22°S
Eastern Atlantic: Morocco to Namibia. Western Atlantic: Gulf of Mexico. Also known from the Indian Ocean. Possibly occurring in the Western Central Pacific (Ref. 38717).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 33.7 cm SL male/unsexed; (Ref. 4460)
Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Markle, D.F. and Y.I. Sazanov, 1990. Alepocephalidae. p. 246-264. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4460)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 4.6 - 13.9, mean 7.5 °C (based on 605 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00164 - 0.00733), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .