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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: Barathronus: Greek, barathron = abyss + ending -ites, that lives there; the Barathron was a deep pit in Athens where criminals were thrown; 1849 +Greek, onos = hake.
More on authors: Nielsen & Eagle.

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

Marine; bathypelagic; depth range 3334 - 3860 m (Ref. 34024). Deep-water

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Atlantic and Pacific Oceans.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 11.6 cm SL male/unsexed; (Ref. 121928); 12.8 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 63 - 80; Anal soft rays: 55 - 72; Vertebrae: 78 - 89. This species is distinguished by the following characters: a pair of small bulbs at base of penis; with a transparent peritoneum; D 63-80, A 55-72, pectoral-fin rays 22-27; precaudal vertebrae 35-40, total vertebrae 78-89; anterior gill arch with 28-35 long rakers; vomer with 4-8 fangs; small otolith, rounded and thick (Ref. 121928).

Rare species (Ref. 34024).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G., 2019. Revision of the circumglobal genus Barathronus (Ophidiiformes, Bythitidae) with a new species from the eastern North Atlantic Ocean. Zootaxa 4679(2):231-256. (Ref. 121928)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 15 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Trophic ecology
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Anatomy
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Otoliths

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Estimates based on models

Preferred temperature (Ref. 123201): 1.5 - 1.6, mean 1.5 °C (based on 22 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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