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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Idiacanthinae
Etymology: Idiacanthus: Greek, idia = own privative + Greek, akantha = thorn (Ref. 45335).
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; profondeur 1239 - 2000 m (Ref. 58018). Deep-water; 25°S - 60°S
Subtropical to temperate waters in the southern hemisphere, probably limited by the subtropical convergence. Incidentally found in sub-Antarctic waters of the Southern Ocean.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 53.0 cm SL mâle / non sexé; (Ref. 7249)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 55 - 63; Épines anales: 0; Rayons mous anaux: 37 - 42. Pelvic fins with 6 rays (females), absent in males.
Body shape (shape guide): elongated.
Mesopelagic species (Ref. 75154). Pronounced sexual dimorphism: females are black, with well developed canine teeth, barbel and pelvic fins with six stripes. Males are dark-brown, have no teeth on maxilla and neither barbel nor pelvic fins (Ref. 47377). Apparently, females live below 500 m during the day and perform vertical migration at night to shallower depths; males always in deep water, ca 1,000-2,000 m (Ref. 5169).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Krueger, W.H., 1990. Idiacanthidae. p. 341-342. 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. 1. (Ref. 7249)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
4.0 ±0.7 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
High vulnerability (57 of 100). 🛈 |