Actinopteri (ray-finned fishes) > Scombriformes
(Mackerels) > Trichiuridae
(Cutlassfishes) > Aphanopodinae
Etymology: Aphanopus: Greek, aphanes = hidden + Greek, pous = foot (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 905 - 2000 m (Ref. 6181), usually - m (Ref. ). Deep-water; 0°C - ; 23°S - 39°S, 54°W - 84°E (Ref. 6181)
Southeast Atlantic: Namibia and at Walvis Ridge. Southwest Atlantic: off Argentina. Indian Ocean: on seamounts off Mozambique and the West Australian Ridges. Western Pacific: Southeast Australia, North Island in New Zealand and the Challenger Plateau (Ref. 41692).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 36731)
Morphology | Morphometrics
(total): 42 - 45;
soft rays: 51 - 57;
Vertebrae: 111 - 117. Pelvic fins represented by a single spine in juveniles, inserted before the base of the pectoral fins, but entirely absent in adults. Body color is coppery black with iridescent tint. The inside of the mouth and gill cavities black.
Occurs on the continental slope or underwater rises (Ref. 10818).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
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
): 2.5 - 3.1, mean 2.7 °C (based on 61 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00046 (0.00020 - 0.00104), b=3.12 (2.92 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100) .