Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 9 - 1210 m (Ref. 9872), usually 200 - 500 m (Ref. 3583). Subtropical; 43°N - 35°S
Eastern Atlantic: Madeira and the Canary Islands to Senegal, Gulf of Guinea and South Africa. Western Atlantic: southern Scotian Shelf, Canada to Greater Antilles, western Caribbean, Panama and northern Gulf of Mexico (Ref. 7334). Indo-Pacific: off Natal (South Africa), Bay of Bengal, southern Australia, Chatham Plateau around New Zealand, and the Philippines (Ref. 4181). Also in northern South America (Moore, pers. comm.).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 3695); common length : 45.0 cm TL male/unsexed; (Ref. 3695)
(total): 7 - 8;
soft rays: 11 - 12. Head with a concave forehead profile and with large mucous cavities covered by tough skin; mouth large and oblique; opercle and preopercle each with a large strong spine; body deep, about 2.1 times in SL; ventral keel with 10 - 14 very robust scutes; caudal fin forked but rounded. Color of head and body is dusky pink, sides with silvery tinge, fins red; tongue and gill cavity blackish; palate white to red (Ref. 7331). Pale beet red to light rosy. Back light red to brownish red, lower sides light silvery gray (Ref. 37108).
Lives close to or on the bottom of the upper continental slope. Prefers hard substrates. Young specimens feed on small shrimps and fish (Ref. 4784). A deep sea species, nonetheless, the young are often found near the coast (Ref. 9137). Utilized as fishmeal and source of oil in eastern central Atlantic (Ref. 3695).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maul, G.E., 1990. Trachichthyidae. p. 620-622. In J.C. Quéro, 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. 2. (Ref. 3583)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 8.1 - 18.7, mean 12.2 °C (based on 848 cells).
Phylogenetic diversity index (Ref. 82804
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01549 (0.00905 - 0.02650), b=3.07 (2.91 - 3.23), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.9 ±0.65 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
): Moderate vulnerability (44 of 100).
Nutrients (Ref. 124155
): Calcium = 36.9 [12.4, 101.2] mg/100g ; Iron = 0.676 [0.368, 1.431] mg/100g ; Protein = 18 [17, 19] % ; Omega3 = 0.337 [0.137, 0.841] g/100g ; Selenium = 22.3 [8.7, 51.7] μg/100g ; VitaminA = 56.6 [13.1, 254.3] μg/100g ; Zinc = 0.643 [0.395, 1.100] mg/100g (wet weight);