Actinopteri (ray-finned fishes) > Alepocephaliformes
(Slickheads and tubeshoulders.) > Alepocephalidae
Etymology: Alepocephalus: Greek, alepos, alepidotos = without scales + Greek, kephale = head (Ref. 45335).
More on authors: Goode & Bean.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 600 - 2500 m (Ref. 4460). Deep-water; 70°N - 15°N, 72°W - 5°W (Ref. 57313)
Eastern Atlantic: Iceland and Greenland, west of British Isles, Morocco south to Mauritania. Western Atlantic: Davis Strait south to Honduras.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 123 cm SL male/unsexed; (Ref. 106777); common length : 70.0 cm SL male/unsexed; (Ref. 4736)
Bathypelagic (Ref. 58426). Found over sand and clay bottoms. Gregarious. Feeds mostly ctenophores, but also crustaceans, echinoderms and polychaetes (Ref. 4460).
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. 125652)
Threat to humans
Fisheries: of potential interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
Estimates based on models
Preferred temperature (Ref. 123201
): 3.3 - 5.9, mean 4 °C (based on 197 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00159 - 0.00720), 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
): 3.9 ±0.25 se; based on food items.
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Very high vulnerability (90 of 100).
Nutrients (Ref. 124155
): Calcium = 16 [7, 44] mg/100g ; Iron = 0.208 [0.113, 0.440] mg/100g ; Protein = 11.9 [10.0, 15.4] % ; Omega3 = 0.316 [0.129, 0.864] g/100g ; Selenium = 27.4 [11.9, 63.7] μg/100g ; VitaminA = 10.9 [2.7, 42.1] μg/100g ; Zinc = 0.342 [0.220, 0.569] mg/100g (wet weight); based on nutrient studies.