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Actinopterygii (ray-finned fishes) > Osmeriformes (Smelts) > Alepocephalidae (Slickheads)
Etymology: nigricans: nigricans meaning blackish (Ref. 4525). More on author: Goode, Bean.

Environment / Climate / Range Ecology

Marine; bathypelagic; depth range 450 - 4540 m (Ref. 96339), usually 1750 - 2200 m (Ref. 4460). Deep-water, preferred ?; 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 / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 36.0 cm SL male/unsexed; (Ref. 96339)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 17-22; Anal spines: 0; Anal soft rays: 11 - 12; Vertebrae: 41 - 42. Branchiostegal rays: 9-10.

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

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous (Ref. 35724).

Main reference Upload your references | References | Coordinator | Collaborators

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. 115185)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00347 (0.00157 - 0.00764), b=3.19 (3.00 - 3.38), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.5 ±0.5 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): Moderate to high vulnerability (49 of 100) .

Entered by Agustin, Liza Q.

Modified by Valdestamon, Roxanne Rei

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Bathylaco nigricans Goode & Bean, 1896