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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Bathyonus: Greek, bathys = deep + Greek, onos = hake.
More on authors: Goode & Bean.

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

Marine; bathydemersal; depth range 604 - 4600 m (Ref. 34024). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

West Central Atlantic, East Central and Southwest Indian Ocean: off Crozet Is. (Ref. 90064).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm

Short description Identification keys | Morphology | Morphometrics

Body depth 9.5 or less in SL; head length about 1/2 preanal length; branchiostegal rays 8-9; no prominent spines on top or side of head; lower pectoral rays free and stronger than upper ones; caudal fin rays 6; precaudal vertebrae 17-19 (Ref. 34024).

Uncommon species (Ref. 34024). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).

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

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G., D.M. Cohen, D.F. Markle and C.R. Robins, 1999. Ophidiiform fishes of the world (Order Ophidiiformes). An annotated and illustrated catalogue of pearlfishes, cusk-eels, brotulas and other ophidiiform fishes known to date. FAO Fish. Synop. 125(18):178p. Rome: FAO. (Ref. 34024)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 11 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 4.1 - 5, mean 4.2 °C (based on 202 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6250 [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): 3.6 ±0.6 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (36 of 100).

Bathyonus pectoralis Goode & Bean, 1885