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> Acanthuriformes (Surgeonfishes) > Leiognathidae (Slimys, slipmouths, or ponyfishes) > Gazzinae
Etymology: ryukyuensis: Named for its type locality, Okinawa, Japan. Okinawa Prefecture used to be the Ryukyu Kingdom..

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

marin démersal. Subtropical

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Northwest Pacific: Japan.

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 9.6 cm SL mâle / non sexé; (Ref. 130900)

Description synthétique Clés d'identification | Morphologie | Morphométrie

This species is distinguished by the following set of characters: body depth 35-45% SL, 126-167% HL; posterior margin of adipose eyelid not incised (similar to E. rivulatus); upper branch of postorbital canal is short, just reaching to or very slightly extending beyond posterior margin of preopercle (similar to E. berbis); anterior tip of scaly area on breast just reaching to vertical through junction of interopercle and subopercle at margin of operculum; interspace of pelvic keels naked; scale rows above and below lateral line 11-17 and 17-24, respectively (some of both 29-38); scale rows between lowest base of pectoral fin and pelvic-fin insertion 8-9; markings on anterior dorsolateral body comprised of short wavy lines or oblique lines; second anal-fin spine short, not extending beyond base of fifth soft ray (Ref. 130900).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves

Référence principale Upload your references | Références | Coordinateur : Woodland, David J. | Collaborateurs

Suzuki, T. and S. Kimura, 2024. Taxonomic revision of the genus Equulites Fowler 1904 (Acanthuriformes: Leiognathidae). Ichthyol. Res. 71:213-259. (Ref. 130900)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

Pêcheries: commercial

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].

Niveau trophique (Ref. 69278): 3.3 ±0.4 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).

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Equulites ryukyuensis Kimura & Suzuki, 2023