Actinopteri (ray-finned fishes) > Blenniiformes
(Blennies) > Tripterygiidae
(Triplefin blennies) > Tripterygiinae
Etymology: Enneapterygius: Greek, ennea = nine times + Greek, pterygion = little fin (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 0 - 12 m (Ref. 79877). Subtropical
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: Japan and Taiwan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.6 cm SL male/unsexed; (Ref. 84020); 3.6 cm SL (female)
Morphology | Morphometrics
soft rays: 17 - 19. This species is distinguished by the following set of characters: 12-13 (rarely 14) spines on second dorsal-fin; 17-19 (rarely 20) anal-fin soft rays; 16-19 pored lateral-line scales; 17-19 notched lateral-line scales; 1-6 rows of small cycloid scales on boundary between abdomen and sides; simple, unbranched dermal flap of anterior nostril; simple dermal flap on orbit; prevomer with 1 teeth row; mandibular pore formula usually 4+1+4 (4-5+1+4-6); male with pale reddish brown body, female pale yellowish brown; shoulder girdle with 2 oblique white markings, upper one anterior to pectoral-fin base and lower one above pelvic-fin base; body with 8 dark saddle markings and a row of 5-6 small, ring-like white markings laterally; a blackish band with posterior white margin on caudal peduncle (Ref. 84020). Mandibular pore pattern 4+1+4 and D2 XIII (Ref. 79877).
Known from rocky shores (Ref. 84020). Eggs 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
Endo, H., E. Katayama, M. Miyake and K. Watase, 2010. New records of a triplefin, Enneapterygius leucopunctatus, from southern Japan (Perciformes: Tripterygiidae). pp. 9-16. H. Motomura and K. Matsuura (eds). Fishes of Yaku-shima Island. National Museum of Nature and Science, Tokyo, 10 March 2010. (Ref. 84020)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 19.1 - 26.6, mean 22.6 °C (based on 177 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
): 3.1 ±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) .