Overview
Comprehensive Description
Biology
Occurs in shallow lagoon and seaward reefs, in areas of mixed coral, rock or sand. Juveniles mimic the cryptic Centropyge eibli (Ref. 9710, 48637).
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Randall, J.E. 1993 Acanthurus tristis, a valid Indian ocean surgeonfish (Perciformes: Acanthuridae). Spec. Publ. J.L.B. Smith Inst. Ichth. (54):1-8. (Ref. 8940)
http://www.fishbase.org/references/FBRefSummary.php?id=8940&speccode=12782
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Distribution
Indian Ocean: Bay of Bengal (Ref. 8940) and the Andaman Sea west to Maldives and Chagos Archipelago, and east to islands of southern Indonesia at least to Bali.
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Randall, J.E. 2002 Surgeonfishes of the world. Mutual Publishing and Bishop Museum Press, Hawai'i. 123 p. (Ref. 37792)
http://www.fishbase.org/references/FBRefSummary.php?id=37792&speccode=12782
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Chagos, Seychelles
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Anon. (2000). FishBase 2000 [CD-ROM]. ICLARM: Los Baños, Laguna, Philippines. 4 cd-roms pp.
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=6542
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Physical Description
Morphology
Dorsal spines (total): 8; Dorsal soft rays (total): 23 - 33; Analsoft rays: 22 - 29
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Randall, J.E. 2001 Acanthuridae. Surgeonfishes (tangs, unicornfishes). p. 3653-3683. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9808)
http://www.fishbase.org/references/FBRefSummary.php?id=9808&speccode=12625
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Size
Max. size
25.0 cm TL (male/unsexed; (Ref. 9710))
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Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
http://www.fishbase.org/references/FBRefSummary.php?id=9710&speccode=13770
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Diagnostic Description
Margin of caudal fin narrow and white. No orange area behind gill opening and extending ventrally behind base of pectoral fins (juveniles mimic the angelfish Centropyge eibli) (Ref 9808).
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Randall, J.E. 2001 Acanthuridae. Surgeonfishes (tangs, unicornfishes). p. 3653-3683. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 9808)
http://www.fishbase.org/references/FBRefSummary.php?id=9808&speccode=12625
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Ecology
Habitat
Depth: 2 - 26m.
From 2 to 26 meters.
Habitat: reef-associated. Occurs in shallow lagoon and seaward reefs, in areas of mixed coral, rock or sand (Ref. 9710).
From 2 to 26 meters.
Habitat: reef-associated. Occurs in shallow lagoon and seaward reefs, in areas of mixed coral, rock or sand (Ref. 9710).
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Environment
reef-associated; marine; depth range 2 - 26 m (Ref. 9710)
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Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
http://www.fishbase.org/references/FBRefSummary.php?id=9710&speccode=13770
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Molecular Biology and Genetics
Molecular Biology
Barcode data: Acanthurus sp.
The following is a representative barcode sequence, the centroid of all available sequences for this species.

There is 1 barcode sequence available from BOLD and GenBank. Below is the sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen. Other sequences that do not yet meet barcode criteria may also be available.
Download FASTA File
There is 1 barcode sequence available from BOLD and GenBank. Below is the sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen. Other sequences that do not yet meet barcode criteria may also be available.
CCTTTATTTAGTATTCGGTGCTTGAGCCGGAATAGTAGGAACAGCACTAAGCCTCCTGATCCGAGCAGAACTAAGTCAACCAGGCGCCCTCCTAGGGGATGATCAAATTTATAATGTAATCGTCACGGCACACGCATTCGTAATAATTTTCTTTATGGTAATACCAATCATGATTGGAGGATTTGGAAACTGACTAATCCCTCTAATGATTGGGGCTCCCGACATGGCGTTTCCACGAATAAACAATATGAGCTTTTGACTTCTTCCCCCATCTTTCCTACTTCTCCTTGCTTCATCTGGTGTAGAGTCTGGGGCGGGAACGGGCTGGACGGTTTATCCCCCTTTAGCGGGCAATCTTGCACATGCCGGAGCCTCTGTAGATCTTACTATCTTTTCCCTTCATCTTGCAGGAATTTCCTCAATTCTTGGGGCTATTAATTTTATTACAACAATCATTAATATGAAACCCCCTGCTATTTCTCAGTACCAAACACCCCTATTCGTATGAGCAGTACTAATTACTGCCGTCCTACTCCTTCTCTCACTCCCTGTCCTGGCCGCTGGCATTACAATGTTATTAACTGATCGAAATCTAAACACTACTTTCTTTGACCCTGCTGGAGGTGGAGATCCTATTCTCTACCAACA
-- end --
-- end --
Download FASTA File
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Statistics of barcoding coverage: Acanthurus sp.
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation
Threats
Least Concern (LC)
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IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
http://www.fishbase.org/references/FBRefSummary.php?id=57073
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Relevance to Humans and Ecosystems
Benefits
Importance
aquarium: commercial
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Randall, J.E. 1993 Acanthurus tristis, a valid Indian ocean surgeonfish (Perciformes: Acanthuridae). Spec. Publ. J.L.B. Smith Inst. Ichth. (54):1-8. (Ref. 8940)
http://www.fishbase.org/references/FBRefSummary.php?id=8940&speccode=12782
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Wikipedia
Acanthurus tristis
Acanthurus tristis is a Tang from the Indian Ocean. It occasionally makes its way into the aquarium trade. It grows to a size of 25 cm in length.
References
- Froese, Rainer, and Daniel Pauly, eds. (2008). "Acanthurus tristis" in FishBase. December 2008 version.
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