>
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.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien rifbewoner; diepte 0 - 3 m (Ref. 138615). Subtropical
Western Pacific: southern Japan and the Philippines.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 2.5 cm SL mannelijk / geslacht onbekend; (Ref. 138615); 2.3 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 14 - 16; Dorsale zachte stralen (totaal) : 8 - 10; Anale stekels: 1; Anale zachte stralen: 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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
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)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
Download XML
Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
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). |
Trofisch niveau (Ref. 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |