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Stegastes redemptus (Heller and Snodgrass, 1903)
CLARION MAJOR
Clarion damselfish

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Stegastes redemptus
© Copyright Ross Robertson, 2006 · 12
Stegastes redemptus

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Stegastes redemptus
© Copyright Ross Robertson, 2006 · 12
Stegastes redemptus
español

Overview
Main identification features
  • body brown, rear whitish
  • tail fin and ends dorsal fin and a: yellow
  • juvenile: yellow + 2 black spots
Dorsal rays XII, 15 (rarely 14); anal rays II, 13; pectoral rays 20 (rarely 19 or 21); lateral-line scales 20 (rarely 19 or 21); gill rakers on lower limb of first arch 13-14 (rarely 12 or 15); greatest body depth 1.9-2.0 in standard length.

Head and front of body light brown, middle part of body gradually darker brown and posterior part whitish; most of body scales with blackish margins; soft dorsal and anal fins mostly whitish with pale yellow on outer portion, caudal fin pale yellow; juveniles overall bright yellow with dusky back, a prominent dark spot at base of anterior soft dorsal rays and smaller dark spot on upper edge of tail stalk.

Size: grows to 15 cm.

Habitat: rocky reefs.

Depth: 1-20 m.

Primarily from the Revillagigedo Islands, with the odd straggler reaching the tip of Baja California.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Northern Subtropical (Cortez Province + Sinaloan Gap); Northern Tropical (Mexican Province to Nicaragua + Revillagigedos).
Depth Range Max: 20 m.
Depth Range Min: 1 m.
Diet: benthic microalgae; mobile benthic crustacea (shrimps/crabs); sessile crustacea; sessile worms.
Eastern Pacific Range: Northern limit=25; Southern limit=19; Western limit=-115; Eastern limit=-110; Latitudinal range=6; Longitudinal range=5.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Omnivore.
FishBase Habitat: Reef Associated.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: 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: 15 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); TEP endemic; TEP oceanic island (s) endemic; Revillagigedos Islands endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Castro-Aguirre, J.L. and Balart, E.F., 2002., La ictiofauna de las islas Revillagigedos y sus relaciones zoogeograficas, con comentarios acerca de su origen y evolucion. En: Lozano-Vilano, M. L. (Ed.). Libro Jubilar en Honor al Dr. Salvador Contreras Balderas., Universidad Autonoma de Nuevo León:153-170.
  • 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 III. Vertebrados - Parte 2., FAO3:1201-1813.
  • Heller , E. and Snodgrass, R.E., 1903., Papers from the Hopkins Stanford Galapagos expedition, 1898-1899. XV. New fishes., Proc. Wash. Acad. Sci., 5:189-229.
  • 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.
  • Ricker, K.E., 1959., Fishes collected from the Revillagigedo Islands during the 1954-1958 cruises of the "Marijean."., Univ. Brit. Columbia Inst. Fish., Mus. Contrib., 4:10pp.
  • Snodgrass , R. E. and Heller, E., 1905., Papers from the Hopkins Stanford Galapagos expedition, 1898-1899. XVII. Shorefishes of the Revillagigedo, Clipperton, Cocos and Galapagos Island., Proc. Wash. Acad. Sci., 6:333-427.
  • 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.
  • Victor, B. C. and Wellington, G. M., 2000., Endemism and the pelagic larval duration of reef fishes in the eastern Pacific Ocean., Marine Ecology Progress Series, 205:241-248.
  • Walker, B. W. and Baldwin, W. J., 1964., Provisional check list of fishes of the Revillagigedo islands., 18 pp.
  • Wellington, G. M. and Victor, B. C., 1989., Planktonic larval duration of one hundred species of Pacific and Atlantic damselfishes (Pomacentridae)., Marine Biology, 101:557-567.

Acknowledgements

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


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