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Ovalentaria/misc (Various families in series Ovalentaria) >
Opistognathidae (Jawfishes)
Etymology: Opistognathus: Greek, opisthe = behind + Greek, gnathos = jaw (Ref. 45335); to the very elongate upper jaw of the type species of the genus, Opistognathus nigromarginatus (Ref. 128653); decorus: Name from the Latin 'decorus' meaning beautiful, referring to the attractive coloration when alive..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 120 - 140 m (Ref. 128653). Deep-water
Western Pacific: Japan (Ryukyu Is., Okinawa) to Indonesia (Sulawesi).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 15.5 cm SL mâle / non sexé; (Ref. 128653)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 11 - 12; Rayons mous dorsaux (Total) : 12; Épines anales: 2; Rayons mous anaux: 11; Vertèbres: 26. This species is distinguished by the following characters: with a rigid upper jaw lacking flexible lamina posteriorly, extending about 1.2 to 1.5 eye diameters behind posterior margin of orbit; infraorbitals are very broad and robust, the third infraorbital with no suborbital shelf; D XI-XII, 12 (usually XI,12); A II,11; vertebrae 10+16; scale rows in horizontal series 56-67; total gill rakers 41-44. Colouration: in life, body with 5-7 violet-blue stripes and head with prominent violet-blue blotches (Ref, 128653).
This species is probably a deep-water species, similar to its sister-species Opistognathus aurolineatus (reflected in the depth range given) (Ref. 128653). Mouthbrooders (Ref. 240).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Employ mouthbrooding to care for their young (Ref. 240).
Smith-Vaniz, W.F., 2023. Review of Indo-West Pacific jawfishes (Opistognathus: Opistognathidae), with descriptions of 18 new species. Zootaxa 5252(1):1-180. (Ref. 128653)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.6 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
