Classification / Names
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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335); uncinatus: Name Latin 'uncinatus' meaning hooked; referring to the characteristic shape of the top of the mental barbel.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique; profondeur ? - 1070 m (Ref. 125184). Deep-water
Southern Atlantic: Brazil.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm SL mâle / non sexé; (Ref. 125184)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 16; Rayons mous anaux: 19; Vertèbres: 54. This species of the subgenus Trachinostomias is distinguished by the following characters: pectoral fin with 2 rays; a long postorbital organ (5.8% SL); vertebrae 54; a small number of photophores OV and PV; body without spots of white luminous tissue; jaw teeth of different size; mental barbel of a simple structure, very short (1.6% SL) and devoid of bulbs and any appendages, hooked at the top (Ref. 125184).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Prokofiev, A.M., 2015. Data for the revision of subgenus Trachinostomias (Melanostomiidae: Photonectes). Morphological variability of P. margarita with description of two new species. J. Ichthyol. 55(2):147-154. (Ref. 125184)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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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=0.00302 (0.00116 - 0.00786), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 4.1 ±0.7 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 (21 of 100).