Acanthurus bariene  Lesson, 1831

Black-spot surgeonfish
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Acanthurus bariene
Picture by Randall, J.E.

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).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 6 - 50 m (Ref. 37816), usually 30 - ? m (Ref. 9710).   Tropical; 23°C - 29°C (Ref. 27115); 30°N - 24°S

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 2334)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 26-28; Anal spines: 3; Anal soft rays: 25 - 26. Body brown; a round black spot at upper gill opening; dark blue line just below the bases of dorsal and anal fins. Dorsal fin with soft part having longer base than spinous part. Minute scales. Gill rakers in anterior row 19-23, posterior 22-24. A dark brown area surrounding the caudal spine. Large males develop highly convex foreheads that extend beyond the mouth (Ref. 1602).

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

Indo-West Pacific: Mozambique (Ref. 1920) and Maldives to the western Pacific.

Biology     Glossary (e.g. epibenthic)

Occurs in clear seaward reef slopes, below 15 m, usually below 30 m (Ref. 9710). Adults mainly on deep coastal reef slopes and outer reef walls (Ref. 48637). Found singly or in pairs (Ref. 9710). Feeds on algal film on bare rocks (Ref. 9710). Juveniles found in shallow protected reefs, usually between soft coral, in 0.2-3 m depth (Ref. 9710).

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; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

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=2.96 (2.88 - 3.05), based on LWR estimates for this genus-BS (Ref. 93245).
Trophic Level (Ref. 69278):  2.0   ±0.00 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Moderate vulnerability (37 of 100) .
Price category (Ref. 80766):   Medium.