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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); crassus: Name from the Latin 'crassus' (thick, fat or stout), referring to the general appearance of this species..

Environment: milieu / climate zone / depth range / distribution range Écologie

marin; profondeur 35 - 35 m (Ref. 85161). Tropical

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Western Indian Ocean: Maldive Islands.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 3.6 cm SL mâle / non sexé; (Ref. 85161)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 11; Rayons mous dorsaux (Total) : 11; Épines anales: 2; Rayons mous anaux: 10; Vertèbres: 26. This species is distinguished by the following set of characters: rigid maxilla with no flexible lamina posteriorly; D XI,11; A II,10; tips of dorsal-fin spines conspicuously pale; dorsum with row of 5 dark blotches, some of which extend distinctly onto dorsal fin; last blotch on dorsal fin much narrower than anterior blotches (Ref. 85161).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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)

Données manquantes (DD) ; Date assessed: 19 July 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.2 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Opistognathus crassus Smith-Vaniz, 2010