Actinopteri (ray-finned fishes) > Ophidiiformes
(Cusk eels) > Bythitidae
Etymology: Aphyonus: Greek, aphyes = sardine + Greek, onos = hake. More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 900 - 2562 m (Ref. 58018), usually - m (Ref. ). Deep-water; 0°C -
Eastern Atlantic: one specimen from Azores (Ref. 7408) and from south of Canary Islands. Southwest Pacific: Known in Australia only from the type locality, off Cape York, Queensland (Ref. 7300). Western Indian Ocean: off Natal, South Africa (Ref. 6611). Few specimens from tropical parts of all oceans.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm SL male/unsexed; (Ref. 7408)
Uncommon species (Ref. 34024). Found on or near bottom (Ref. 6527). Viviparous (Ref. 7408).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)
IUCN Red List Status (Ref. 124695)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.4 - 5.8, mean 3.9 °C (based on 957 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00179 - 0.01169), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (27 of 100) .