Classification / Names
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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335); paxtoni: Named for Dr. John Paxton for his many contributions to the study of mesopelagic fishes and his
encouragement to the authors..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; profondeur 130 - 135 m (Ref. 92891). Tropical
Western Pacific Ocean; Papua New Guinea.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 2.3 cm SL mâle / non sexé; (Ref. 92891)
Description synthétique
Morphologie | Morphométrie
Rayons mous dorsaux (Total): 16-18; Rayons mous anaux: 18. This species is distinguished from other members of the subgenus Photonectes in the following set of characters: short barbel with a very enlarged ovoid terminal bulb without terminal appendages; no blue luminous tissue; reduced length of gill filaments on first branchial arch, less than arch depth; VAV photophores 15-16 (vs. 0-15), AC photophores 13 (vs. 9-12), IV photophores 29 (vs. 30-46); bulb is plain (without filaments) and remarkably large. This species is similar to P. ovibarba (synonym of P. braueri) in having an enlarged bulb but is without pectoral fins (vs. present, with 2 rays each), IV photophores 29 (vs. 32-33), AC photophores 13 (vs. 10-12), the bulb has no terminal appendage (vs. bearing a small ovoid appendage); from another species with a large bulb, P. fimbria (synonym of P. parvimanus), IV photophores 29 (vs. 43-49), IP photophores insert halfway along the isthmus, or with gap (vs. insert near mandibular symphysis or no gap), no thick skin (vs. thick skin over dorsal- and anal-fin rays), no flap or terminal appendage; growth change unknown (vs. bulb with terminal flap increasing with growth) (Ref. 92891).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Flynn, A.J. and C. Klepadlo, 2012. Two new species of Photonectes (Teleostei: Stomiidae) from the Indo-Pacific, and a re-examination of P. achirus. Memoirs of Museum Victoria 69: 259-267. (Ref. 92891)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
Noms communsSynonymesMétabolismePrédateursÉcotoxicologieReproductionMaturitéFraiRassemblement de ponteFéconditéŒufsDéveloppement de l'œuf
Taille/ÂgeCroissanceLongueur-poidsLongueur-longueurFréquences de longueursMorphométrieMorphologieLarvesDynamique des populations larvairesRecrutementAbondanceBRUVS
RéférencesAquacultureProfil d'aquacultureSouchesGénétiqueElectrophoresesHéritabilitéPathologiesTraitementNutrientsMass conversion
CollaborateursImagesStamps, Coins Misc.SonsCiguateraVitesseType de nageSurface branchialeOtolithesCerveauxVision
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), 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): 3.1 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
