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 300 - 1350 m (Ref. 6181), usually - m (Ref. ). Deep-water; 0°C - ; 50°N - 35°S, 105°E - 14°E (Ref. 6181)
Atlantic Ocean: in moderately warm and tropical waters; it has not been found only off the coast of South America. In the eastern Atlantic, it is found off western Sahara, Congo and Angola, from Sierra Leone submarine rise and Pilberry Seamount (Ref. 10818).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 148 cm TL male/unsexed; (Ref. 108735)
Morphology | Morphometrics
(total): 39 - 44;
soft rays: 46 - 50;
Vertebrae: 102 - 108. Pelvic fins represented by a single spine in juveniles inserted before the base of the pectoral fins but entirely absent in adults. Body is coppery black with iridescent tint. The inside of the mouth and gill cavities black.
Adults benthopelagic from 800 to 1,350 m, juveniles mesopelagic from 300 to 500 m (Ref. 6181). Up until recently, fisheries catch landings of A. carbo, a sympatric species in the waters of Canary and Madeira islands, were mixed with A. intemedius.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Displays determinate fecundity (Ref. 108695). Mature individuals undertake horizontal migration to spawning and nursery grounds (Ref. 108708).
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
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 6.2 - 13.7, mean 9.4 °C (based on 190 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00110 (0.00060 - 0.00200), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 4.3 ±0.7 se; based on size and trophs of closest relatives
Generation time: 9.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (K=0.121; tmax=15).
Vulnerability (Ref. 59153
): High to very high vulnerability (73 of 100) .
Nutrients (Ref. 124155
): Calcium = 10.6 [5.6, 17.7] mg/100g ; Iron = 0.169 [0.096, 0.366] mg/100g ; Protein = 17.2 [15.9, 18.5] % ; Omega3 = 0.201 [0.094, 0.428] g/100g ; Selenium = 35.4 [16.4, 83.6] μg/100g ; VitaminA = 13.3 [2.8, 53.0] μg/100g ; Zinc = 0.408 [0.265, 0.589] mg/100g (wet weight);