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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335); xenopogon: Name from Greek words 'xenos' for alien and 'pogon' for beard, referring to the barbel structure of the new species which does not resemble those of other members of subgenus Trachinostomias, but distant by other characters P. dinema.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathydémersal. Deep-water
Western Central Pacific: Philippines.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 16.8 cm SL mâle / non sexé; (Ref. 125186)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 18; Rayons mous anaux: 23; Vertèbres: 59 - 62. This species is distinguished by the following characters: pectoral with one long and strong ray that consists of two tightly connected halves; uniserial praemaxillare dentition; vertebrae 59-60; postorbital organ 1.0% (immature male) or 2.4% (mature male) of SL; the chin barbel is relatively short (4.8% SL for SL 11.0 cm) with terminal bulb not protruding beyond the stem; internal pigmentation and flat non-pigmented asymmetrically bifurcated terminal filament on its tip (Ref. 125186).
Cross section: compressed.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Prokofiev, A.M., 2019. Materials for revision of the genus Photonectes (Melanostomiidae). J. Ichthyol. 59(4):449-476. (Ref. 125186)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00309 (0.00118 - 0.00808), 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 (Réf. 69278) |
3.9 ±0.7 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low to moderate vulnerability (29 of 100). 🛈 |