Teleostei (teleosts) > Ophidiiformes
(Cusk eels) > Bythitidae
Etymology: Cataetyx: Greek, kata = down + Greek, etix, stixo, stizo = to prick, to puncture.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 500 - 2400 m (Ref. 34024). Deep-water; 64°N - 36°S, 29°W - 35°E
Eastern Atlantic: scattered localities around the British Isles, Azores and France, along the coast of West Africa to the Cape of Good Hope; also recorded from the western Mediterranean. Reported from Iceland (Ref. 12462). Reported from the Gulf of Mexico (Ref. 37039).
Length at first maturity / Size / Weight / Age
Maturity: Lm 35.0, range 30 - 40 cm
Max length : 65.0 cm TL male/unsexed; (Ref. 37039)
Uncommon bathydemersal or benthopelagic species (Ref. 34024). Viviparous (Ref. 4758).
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. 126983)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 3.7 - 13.2, mean 6.5 °C (based on 300 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00174 - 0.01201), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.7 ±0.6 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.).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100).
Nutrients (Ref. 124155
): Calcium = 22.5 [12.7, 52.3] mg/100g ; Iron = 0.415 [0.209, 0.860] mg/100g ; Protein = 15.7 [13.2, 18.1] % ; Omega3 = 0.282 [0.140, 0.581] g/100g ; Selenium = 31.4 [12.0, 77.2] μg/100g ; VitaminA = 7.14 [1.37, 35.40] μg/100g ; Zinc = 0.463 [0.287, 0.731] mg/100g (wet weight);