Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
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Trachichthyiformes (Roughies) >
Trachichthyidae (Slimeheads)
Etymology: Hoplostethus: Greek, hoplon = weapon + Greek, stetho, stethion = brest; literal = to prick a little breast (Ref. 45335); ravurictus: Named for the pale buccal cavity of this species, which contrasts with the black lining of the mouth found in most other species of the subgenus Hoplostethus
(Hoplostethus)..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; profondeur 250 - 1000 m (Ref. 83593), usually ? - 400 m (Ref. 83593). Tropical; 10°S - 20°S (Ref. 83593)
Eastern Indian Ocean: Western Australia.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 14.1 cm SL mâle / non sexé; (Ref. 83593)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 5 - 7; Rayons mous dorsaux (Total) : 13 - 14; Épines anales: 3; Rayons mous anaux: 8 - 10. This species is characterized by the following: 15, rarely 13, 14 or 16 pectoral-fin rays; 13-16, rarely 10-12 and 17-20 abdominal scutes, some scutes in large individuals with multiple apical points; isthmus with small spinoid scales; rectangular body, depth distinctly shorter than length, 1.9-2.0 in SL; nape almost straight, forehead turning abruptly downward above upper lip; body silvery in life, buccal cavity and opercular recess pale to slightly dusky (Ref. 83593).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Gomon, M.F., 2008. A new species of the roughy genus Hoplostethus (Trachichthyidae) off Northwestern Australia. Mem. Mus. Vict. 65:189-194. (Ref. 83593)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 9.2 - 11.4, mean 9.9 °C (based on 6 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01660 (0.00723 - 0.03808), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
