Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335). More on author: Randall.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 3 - 8 m (Ref. 48637). Tropical; 20°N - 25°S, 35°E - 172°W

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 45.0 cm SL male/unsexed; (Ref. 48637)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 25-26; Anal spines: 3; Anal soft rays: 23 - 24. Color in life dark brown; orange brown from pectoral base downward; caudal spine socket bright orange; orange blotch before and behind pupil; caudal fin base with a white band. Anterior gill rakers 20-23, posterior 24-28. Large caudal spine, 2.2 - 4.4 in head.

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

Western Indian Ocean: Mozambique (Ref. 41878). Indo-West Pacific: Seychelles (Ref. 10685), Philippines, Indonesia and Great Barrier Reef; recently found in Maldives. Reported from Malaysia (Ref. 5756) and Samoa (Ref. 592).

Inhabits shallow reefs, both in lagoons and outer reef areas. Frequently moves in groups. Juveniles found between soft corals in lagoons at depths of up to 2 m (Ref. 9710, 48637). Adults in groups, often mixed with other similar species (Ref. 48637).

Main reference Upload your references | References | Coordinator : Randall, John E. | Collaborators

Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235.

IUCN Red List Status (Ref. 90363)

Least Concern (LC)

Threat to humans

Harmless

Human uses

Fisheries: commercial

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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02246 (-0.14181 - 0.18673), b=2.96432 (2.87776 - 3.05087), based on LWR estimates for this genus-BS (Ref. 93245).

Trophic Level (Ref. 69278): 2.0 ±0.0 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=30; K=0.67).

Vulnerability (Ref. 59153): Low to moderate vulnerability (26 of 100) .

Price category (Ref. 80766): Medium.

Acanthurus auranticavus Randall, 1956