Australia country information

Common names: Blacktail threefin, Blacktail triplefin
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality, Heron I., Queensland, USNM 259168 (holotype of Enneapterygius bahasa, 3.25 cm SL) (Ref. 27223). Known from the Capricorn Group, QLD (23°30’S) (Ref. 75154). Known from Great Barrier Reef (Ref. 90102).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Hoese, D.F., D.J. Bray, J.R. Paxton and G.R. Allen, 2006
National Database:

Common names from other countries

Blacktail triplefin, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 Ecology

Marine; reef-associated; depth range 0 - 18 m (Ref. 27223). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: Japan, Taiwan, Philippines, Indonesia, Papua New Guinea, Australia, Palau, and Guam.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm TL male/unsexed; (Ref. 90102)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 14 - 18; Dorsal soft rays (total): 6 - 11; Anal spines: 1; Anal soft rays: 16 - 20. Male with reddish head and body, row of white blotches along side, additional row of white saddles on back, blackish tail, and black "mask" on front and lower half of head. Female translucent yellowish or orange with faint dark saddles/streaks on back. Dorsal rays III + XI-XV + 6-11; anal rays I,16-20; pectoral rays 16-18; pelvic rays I,2; lateral line interrupted, 13-20 + 13-22; head, chest, and pectoral-fin base scaleless; simple orbital tentacle present; mandibular pores 3-6 + 2-8 + 3-6. Maximum size to 4 cm TL (Ref. 90102).

Adults occur in shallow waters, mainly on the reef flat or crest. They are found on shady vertical rock walls with some current and relatively high oxygen level (Ref. 27223). 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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Fricke, Ronald | Collaborators

Fricke, R., 1997. Tripterygiid fishes of the western and central Pacific, with descriptions of 15 new species, including an annotated checklist of world Tripterygiidae (Teleostei). Theses Zool. 29:1-607. (Ref. 27223)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 03 May 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 29.3, mean 28.5 (based on 1586 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00562 (0.00258 - 0.01228), 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.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Enneapterygius bahasa Fricke, 1997