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Acanthurus achilles Shaw, 1803
ACHILLES TANG
Life   Vertebrata   Fish   Acanthuridae   Acanthurus

Acanthurus achilles
© Copyright John Rangall, 2006 · 0
Acanthurus achilles

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Overview
Main identification features
  • black; orange oval rear body
Dorsal rays IX, 29-33; anal rays III, 26-29; pectoral rays 16; body depth 1.7-1.9 in standard length; gill rakers on first arch 16-20; tail fin concave.

Overall bluish black with large eliptical orange patch posteriorly on body; a white slash or short bar covering middle of opercular membrane; tail fin with broad orange bar and white rear margin.

Size: to 26 cm.

Habitat: shallow surge areas of rocky and coral reefs.

Depth: 0-10 m.

The tropical central Pacific; in the eastern Pacific it has been seen near Cape San Lucas (Baja California) and inside the western Gulf, and a pelagic juvenile was collected near Clipperton Island.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 10 m.
Depth Range Min: 0 m.
Diet: benthic microalgae.
Eastern Pacific Range: Northern limit=25; Southern limit=11; Western limit=-111; Eastern limit=-110; Latitudinal range=14; Longitudinal range=1.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Herbivore.
FishBase Habitat: Reef Associated.
Global Endemism: All Pacific (West + Central + East); TEP non-endemic; Pacific only (East + Central &/or West); "Transpacific" (East + Central &/or West Pacific); All species.
Habitat: Corals; Reef associated (reef + edges-water column & soft bottom); Rocks; Reef (rock &/or coral); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 26 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); Tropical Eastern Pacific (TEP) non-endemic; Eastern Pacific non-endemic; All species.
Residency: Vagrant.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Allen , G.R. and Robertson, D.R., 1994., Fishes of the Tropical Eastern Pacific., Crawford House Press Pty Ltd:1-332.
  • Allen , G.R. and Robertson, D.R., 1997., An Annotated Checklist of the fishes of Clipperton Atoll, Tropical Eastern Pacific., Revista de Biologia Tropical, 45:813-843.
  • Castro-Aguirre , J. L. , Balart , E. F. and Arvizu-Martínez, J., 1995., Contribución al conocimiento del origen y distribución de la ictiofauna del Golfo de California, México., Hidrobiologica, 5:57-78.
  • Findley, L.T., Hendrickx, M.E., Brusca, R.C., van der Heiden, A.M., Hastings, P.A., Torre, J., 2003., Diversidad de la Macrofauna Marina del Golfo de California, Mexico., CD-ROM versión 1.0. Projecto de la Macrofauna del Golfo .  Derechos reservados de los autores y Conservación Internacional.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Galván-Piña, V.H., Galván-Magaña, F., Abitia-Cárdenas, L.A., Gutiérrez-Sanchez, F.J., Rodríguez-Romero, J., 2003., Seasonal structure of fish asseblages in rocky and sandy habitats in Bahía de La Paz, Mexico., Bull. Mar. Sci., 72:19-35.
  • Love, M.S., Mecklenburg, C.W., Mecklenburg, T.A., Thorsteinson, L.K., 2005., es of the West Coast and Alaska: a checklist of North Pacific and Artic Ocena species from Baja California to the Alaska-Yukon border., U.S. Department of the Interior, U.S. Geological Survey, Biological Resources Division, 288pp.
  • Robertson , D.R. and Allen, G.A., 1996., Zoogeography of the shorefish fauna of Clipperton Atoll., Coral Reefs, 15:121-131.
  • Shaw, G., 1803., General zoology or systematic natural history ... Pisces. G. Kearsley, London, 1800-1826. Pisces in vol. 4 (1803) and vol. 5 (1804). [Series is 14 vols., 1800-1826.]., General Zool., 4:1-186.
  • Thomson , D.A. , Findley , L.T. and Kerstitch, A.N., 2000., Reef fishes of the Sea of Cortez., University of Texas Press(Revised Ed.):353.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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