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> Ophidiiformes (Cusk eels) > Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Bassozetus: Latin, bassus = thick, fat + Greek, ketos = marine mosnter, whale (Ref. 45335); nielseni: Named for Dr. Jørgen G. Nielsen (Associate Professor Emeritus in University of Copenhagen), for his contribution on the taxonomy of ophidiid fishes (Ref. 119401).
Eponymy: Jørgen G Nielsen (d: 1932) is a Danish zoologist. [...] (Ref. 128868), visit book page.

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

marin bathydémersal; profondeur 3155 - 5440 m (Ref. 119401). Tropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

North Atlantic and Western Indian Ocean. Tropical to subartic.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 61.5 cm SL (female)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Rayons mous dorsaux (Total) : 122 - 129; Rayons mous anaux: 101 - 109; Vertèbres: 68 - 71. This species can be distinguished from its congeners by the following set of characters: D 122-129; long rakers on 1st gill arch 11-14; oblique scales 20-25; abdominal vertebrae 13-14; HL 18.1-21.3% SL; body depth at anal-fin origin 8.2-14.6% SL; predorsal length 16.4-20.1% SL; tail length 62.7-68% SL; posterior tip of pelvic-fin rays anterior to anus; one medial basibranchial tooth patch; dorsal margin of sagittal otolith smooth. Colouration: pale yellowish brown fins (preserved condition).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Tomiyama, S., M. Takami and A. Fukui, 2018. A new deepwater assfish, Bassozetus nielseni sp. nov. (Ophidiiformes: Ophidiidae), from the North Atlantic and West Indian oceans. Ichthyol. Res. 65:353-362. (Ref. 119401)

Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)

Préoccupation mineure (LC) ; Date assessed: 11 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00380 (0.00167 - 0.00864), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.7 ±0.6 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (50 of 100).

Bassozetus nielseni Tomiyama, Takami & Fukui, 2018