Actinopteri (ray-finned fishes) > Blenniiformes
(Blennies) > Tripterygiidae
(Triplefin blennies) > Tripterygiinae
Etymology: Enneapterygius: Greek, ennea = nine times + Greek, pterygion = little fin (Ref. 45335). More on author: Fricke.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 0 - 17 m (Ref. 13227). Tropical
Southwest Pacific: Australia, Vanuatu, Fiji, then east to American Samoa, and the French Polynesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 54980)
Morphology | Morphometrics
(total): 14 - 17;
soft rays: 17 - 21. Small and slender supraorbital tentacle; in males, first spine of first dorsal fin higher than first spine of second dorsal fin; in females, first dorsal fin a little less than 50% shorter than second dorsal fin; females whitish, with fine black dots, bearing a reticular red or brown pattern, isolating the white into 2-3 longitudinal rows of blotches; male coloration similar but generally darker. Dorsal rays III + XI-XIII + 7-10; lateral line interrupted, 14-20 + 14-21; mandibular pores 3-4 + 1 + 3-4 (Ref. 54980).
Female members of the Tripterygiidae have eggs that are hemispherical and covered with numerous sticky threads that anchor them in the algae on the nesting sites (Ref. 240). Larvae are planktonic which occur primarily in shallow, nearshore waters (Ref. 94114).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fricke, R., 1994. Tripterygiid fishes of Australia, New Zealand and the southwest Pacific Ocean (Teleostei). Theses Zool. 24:1-585. (Ref. 13227)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 25 - 29, mean 27.1 °C (based on 457 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00246 - 0.01227), b=3.08 (2.89 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .