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Trachichthyiformes (Roughies) >
Diretmidae (Spinyfins)
Etymology: Diretmichthys: Greek, di = two + Greek, eretmos = oar + Greek, ichthys = fish (Ref. 45335).
Eponymy: Professor Dr Nikolai Vasilyevich Parin (1932–2012) of the P. [...] (Ref. 128868), visit book page.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; profondeur 0 - 2100 m (Ref. 58018). Deep-water; 40°N - 40°S, 71°W - 154°W
Broadly distributed tropical and temperate species (Ref. 9927). Eastern Atlantic: off Morocco to Sierra Leone and from Angola to South Africa. Western Atlantic: Caribbean Sea (Ref. 6744); reported from Guianas (Ref. 13608). Western Indian Ocean: at about 38°S. Western Pacific: off Japan, China Sea, Arafura Sea (Ref. 9819), off Victoria, Australia (Ref. 6536) and New Zealand (Ref. 5755). Including west of Ireland, Flemish Cap, and Gulf of Maine (Moore, pers. comm.).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 40.0 cm TL mâle / non sexé; (Ref. 6622)
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 26 - 29; Épines anales: 0; Rayons mous anaux: 20 - 23. Adults greyish black in color (Ref. 6622). Tip of pelvic fin reaching origin of anal fin (Ref. 13608).
Body shape (shape guide): short and / or deep.
Juveniles found near the surface; adults mesopelagic below 500 m (Ref. 27121). May occur at depths greater than 2,000 m (Ref. 6536). Feed on small crustaceans and planktonic organisms (Ref. 27121). Breed all year round (Ref. 6744). Minimum depth range taken from Ref. 27000.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Post, A., 1990. Diretmidae. p. 623-624. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 6536)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Température préférée (Réf.
123201): 4.5 - 13.9, mean 8.5 °C (based on 849 cells).
Indice de diversité phylogénétique (Réf.
82804): PD
50 = 1.0625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01738 (0.00863 - 0.03498), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Réf.
69278): 3.5 ±0.48 se; based on food items.
Vulnérabilité de la pêche (Ref.
59153): Low to moderate vulnerability (30 of 100).
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