Acanthurus tennentii  Günther, 1861

Doubleband surgeonfish
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Acanthurus tennentii   AquaMaps   Data sources: GBIF OBIS
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Image of Acanthurus tennentii (Doubleband surgeonfish)
Acanthurus tennentii
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).   More on author: Günther.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 1 - 40 m (Ref. 90102), usually 3 - 25 m (Ref. 27115).   Tropical; 24°C - 28°C (Ref. 27115)

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 31.0 cm TL male/unsexed; (Ref. 3145); common length : 25.0 cm TL male/unsexed; (Ref. 3146)

Short description Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 23-24; Anal spines: 3; Anal soft rays: 22 - 23. Brown in color, specimens up to 12 cm SL with black horseshoe mark on shoulder region breaking into 2 horizontal curved bands in larger specimens; caudal spine surrounded by a black area which is then surrounded by a bluish white area; caudal fin with a white posterior border (Ref. 3145).

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

Indian Ocean: East Africa to Sri Lanka and the Lesser Sunda Islands of southern Indonesia. The Red Sea record by Dor (1984, Ref. 2198) is an error.

Biology     Glossary (e.g. epibenthic)

Inhabits lagoon and seaward reefs, 1 to over 20 m depth (Ref. 9710, 48637). Also found in slopes from silty inshore to outer reefs (Ref. 48637). Solitary or in groups (Ref. 90102). Sometimes occurs in small shoals. Grazes on benthic algae (Ref. 30573).

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. (Ref. 1920)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 30298)




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 | DORIS | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | 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 models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.01160 - 0.04961), b=2.96 (2.79 - 3.13), based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  2.0   ±0.00 se; Based on food items.
Resilience (Ref. 69278):  .
Vulnerability (Ref. 59153):  Low to moderate vulnerability (29 of 100) .
Price category (Ref. 80766):   Medium.