Acanthurus tennentii Günther, 1861
Doubleband surgeonfish
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Acanthurus tennentii
Picture by Randall, J.E.
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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.
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335). More on author: Günther.
Environment / Climate / Range Ecology
Marine; reef-associated; depth range 1 - 25 m (Ref. 48637), 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)
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 | 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.
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). 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.
IUCN Red List Status (Ref. 90363)
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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Common names
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Synonyms
Metabolism
Predators
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Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
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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 | 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): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153): Low to moderate vulnerability (29 of 100) .