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: Castelnau.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 2 - 40 m (Ref. 7345), usually 2 - 25 m (Ref. 27115). Tropical; 21°C - 25°C (Ref. 27115); 43°N - 33°S, 98°W - 13°W

Length at first maturity / Size / Weight / Age

Maturity: L_m 15.5, range 9 - ? cm
Max length : 38.1 cm SL male/unsexed; (Ref. 9761); common length : 25.0 cm TL male/unsexed; (Ref. 3142)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 23-26; Anal spines: 3; Anal soft rays: 21 - 23. Caudal fin moderately emarginate (Ref. 13442). Head and body deep and compressed (Ref. 26938).

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

Western Atlantic: Massachusetts, USA and Bermuda southward to the Gulf of Mexico (except in the northeast) and Brazil. Eastern Atlantic: Ascension and St. Helena islands (Ref. 7345) off Angola (Ref. 26938). A recent record from Seychelles is probably a locality error (Ref. 13442).

Inhabits shallow bottoms with coral or rocky formations (Ref. 13628). Usually occurs in groups of five or more individuals. Mainly diurnal species. Feeds on algae. The spine on both sides of the caudal peduncle may inflict painful wounds (Ref. 5217). Marketed fresh. Minimum depth reported from Ref. 27115.

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

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p.

IUCN Red List Status (Ref. 90363)

Least Concern (LC)

Threat to humans

Traumatogenic (Ref. 5217)

Human uses

Fisheries: minor commercial; aquarium: commercial; bait: occasionally

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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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=0.01863 (-0.08003 - 0.11729), b=2.92 (2.85 - 2.98), based on LWR estimates for species & genus-BS (Ref. 93245).

Trophic Level (Ref. 69278): 2.0 ±0.0 se; Based on diet studies.

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): Low to moderate vulnerability (32 of 100) .

Price category (Ref. 80766): Medium.

Acanthurus bahianus Castelnau, 1855