Classification / Names
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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Malacosteinae
Etymology: Photostomias: Greek, photos = light + greek, stoma = mouth (Ref. 45335); lucingens: Name from Latin 'lucis' for light and 'ingens' meaning ‘of remarkable size’, referring to the extreme size of the light-producing postorbital photophore in males..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique. Subtropical
Pacific: Lord Howe Rise to the East Pacific Rise in the South Pacific; the Philippines to the Hawaiian Arch.. Eastern South Atlantic (from 5°S to 23°S).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 10.9 cm SL mâle / non sexé; (Ref. 80463)
Description synthétique
Morphologie | Morphométrie
Rayons mous dorsaux (Total): 22-25; Rayons mous anaux: 26 - 30. This species differs from its congeners in having the following set of characters: male postorbital photophore (PO) large, 26.8-39.9% upper jaw length (UJL), in specimens greater than 60 mm (vs. small to moderate, 7.8-28.1% UJL, in all its congeners except P. atrox); female PO moderate, 10.3-15.0% UJL, in specimens greater than 60 mm (vs. small, 6.1-11.1% UJL, in P. tantillux and P. goodyeari); male AO small, 2.4-4.7% UJL, in specimens greater than 60 mm (vs. large, 4.9-9.6% UJL, in P. tantillux and P. atrox); three tooth patches positioned at posterior end of the first, second, and third basibranchials (vs. two basibranchial tooth patches in P. guernei); total dorsal- and anal-fin rays 49-55, rarely 47, 48, or 56 (vs. 57-63, rarely 56, in P. goodyeari); females maturing at a small size, approximately 60 mm (vs. greater than 100 mm in P. atrox and P. liemi) (Ref. 80463).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Kenaley, C.P., 2009. Revision of Indo-Pacific species of the loosejaw dragonfish genus Photostomias (Teleostei: Stomiidae: Malacosteinae). Copeia 2009(1):175-189. (Ref. 80463)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00157 - 0.01056), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
