Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina batypelagisk; havsvandrande (Ref. 51243); djupintervall 350 - 1000 m (Ref. 4470). Deep-water; 21°N - 19°S
Eastern Atlantic: Cape Blanc, Mauritania to Angola; extending to Walvis Bay, Namibia (Ref. 11228). Western Central Atlantic: Gulf of Mexico (Ref. 27768) and Cuba (Ref. 26340).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 33.0 cm SL hane/ej könsbestämd; (Ref. 3991)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 14 - 17; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 28 - 31. Black in color with dusky pigmentation on median fins; pectoral and pelvic fins are colorless (Ref. 3988).
Mesopelagic, adults found in 500-700 m depth (Ref. 4470). Living on or near the bottom, probably moves in schools (Ref. 37473).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Photichthyidae. p. 343-348. In J.C. Quero, 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. 1. (Ref. 4470)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 6.3 - 9.3, mean 7.6 °C (based on 44 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00129 - 0.00773), b=3.18 (2.97 - 3.39), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.5 ±0.50 se; based on food items.
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming tmax>10).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).