Classification / Names
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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.
Eponymy: Alastair (Al) Graham (d: 1964), Collection Manager at CSIRO Marine Research, Hobart, was honoured in the binomial for his longstanding efforts in building and maintaining Australian ichthyological collections and his helpful cooperation with [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; profondeur 1137 - 1300 m (Ref. 128809). Deep-water
Distribution
Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri
Indo-West Pacific: South Australia, Taiwan and the Philippines.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 8.5 cm SL mâle / non sexé; (Ref. 128809); 20.0 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 69 - 78; Rayons mous anaux: 60 - 67; Vertèbres: 74 - 81. This species is distinguished by the following characters: body long, robust and slightly compressed; D 69-78, A 60-67, caudal-fin rays 8-10 and pectoral-fin rays 21-25; vertebrae precaudal 34-37, total 74-81; origin of dorsal fin above vertebra 27-30, anterior gill arch with 27-32 long rakers; fangs on vomer 3-5 and on each dentary 3-5; predorsal length 47.0-52 % SL; otolith small (3 mm long in 20.0 cm SL holotype). Colouration: pigment laterally on body absent, dark blue peritoneum and newly caught specimen reddish all over (Ref. 128809).
Maximum length of ripe female 20.0 cm SL caught by demersal trawl and unripe male, 8.5 cm SL collected at 1191-1262 m by an otter trawl (Ref. 128809).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00172 - 0.01163), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.5 ±0.5 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): Low vulnerability (14 of 100).
