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> Alepocephaliformes (Slickheads and tubeshoulders.) > Alepocephalidae (Slickheads)
Etymology: nigricans: nigricans meaning blackish (Ref. 4525).
More on authors: Goode & Bean.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina batypelagisk; djupintervall 450 - 4540 m (Ref. 96339), usually 1750 - 2200 m (Ref. 4460). Deep-water; 40°N - 40°S, 69°W - 93°E (Ref. 57320)

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Circumglobal in warmer waters. Eastern Atlantic: scattered records from southwest of Ireland to the Azores (Ref. 4736); between 29°23'N to 21°35'S. Eastern Pacific: California Current region (Ref. 35724). Possibly occurring in the Western Central Pacific (Ref. 38717).

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 36.0 cm SL hane/ej könsbestämd; (Ref. 96339)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 17 - 22; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 11 - 12; Ryggkotor: 41 - 42. Branchiostegal rays: 9-10.

Found in deeper waters (Ref. 35724). Oviparous, with pelagic larvae (Ref. 35724).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Oviparous (Ref. 35724).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Markle, D.F. and J.-C. Quéro, 1984. Alepocephalidae (including Bathylaconidae, Bathyprionidae). p. 228-253. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 4736)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 11 July 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Preferred temperature (Ref. 123201): 2.5 - 3.5, mean 2.8 °C (based on 464 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00347 (0.00163 - 0.00737), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (34 of 100).

Bathylaco nigricans Goode & Bean, 1896