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Blenniiformes (Blennies) >
Tripterygiidae (Triplefin blennies) > Tripterygiinae
Etymology: Enneapterygius: Greek, ennea = nine times + Greek, pterygion = little fin (Ref. 45335); olivaceus: Name from Latin refers to the olivaceous body color of specimens; noun in apposition.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin récifal; profondeur 0 - 3 m (Ref. 138615). Subtropical
Distribution
Territoires | Zones FAO | Écosystèmes | Occurrences | Carte par point | Introductions | Faunafri
Western Pacific: southern Japan and the Philippines.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 2.5 cm SL mâle / non sexé; (Ref. 138615); 2.3 cm SL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 14 - 16; Rayons mous dorsaux (Total) : 8 - 10; Épines anales: 1; Rayons mous anaux: 16 - 17. This species is distinguished by the following set of characters: second dorsal-fin spines 11-13 (modally 12); third dorsal-fin rays 8-10; A I,16-17; pectoral-fin rays i-v + 3-7 + vi-viii = 14-17; pored lateral-line scales 12-14; notched lateral-line scales 18-22; scale rows in longitudinal series 30-32; scales above 1st pored lateral-line scale 1-3; scales below 1st notched lateral-line scale 2 or 3; circumpeduncular scales 8; mandibular pore formula 3-4 + 1 + 3-4 (usually 3 + 1 + 3); head long, its length 28.4-33.0% (mean 31.4%) of SL; upper jaw long, its length 9.5-13.1% (11.4%) of SL; first spine of first dorsal fin longer than that of second dorsal-fin, its length 11.2-15.5% (13.6%) of SL; anterior nostril tentacle is unbranched; orbital tentacle large, leaf-shaped, the edge rounded, its length slightly less than or subequal to pupil diameter, its width almost half of its length; body generally olive-green, head, including eye, snout, lips, cheek, opercle, and pectoral-fin base dense black in nuptial males. Colouration: body generally yellowish-white, with scattered brownish-orange pigmentation particularly along the scale margins, darker on lateral surface forming indistinct A-shaped or X-shaped bars in pale males and females; pectoral-fin rays flecked with broad brown pigmentation forming ca. 4 or 5 vertical bands on fin; anal fin generally black, with translucent margin in nuptial males; grayish pigmentation on central region of anal-fin rays in pale males and females; caudal fin semi-transparent with white with grayish rays (Ref. 138615).
Body shape (shape guide): elongated; Cross section: oval.
This species is usually found in shallow rocky reefs in depths of 0.5–3 m. The specimen was collected from the upper surface of the rock covered by short seaweed (Ref. 138615).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Dewa, Y., S Tashiro and H. Motomura, 2023. A new species of the genus Enneapterygius (Perciformes: Tripterygiidae) from Japan and the Philippines, with a synopsis and synonymy of related species. Zootaxa 5374(3):333-360. (Ref. 138615)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00617 (0.00292 - 0.01304), b=3.03 (2.85 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.). |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |