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Diseases of Aquatic Organisms

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DAO 80:45-49 (2008)  -  DOI:

Renal oxalosis in free-ranging green turtles Chelonia mydas

Brian A. Stacy1,*, Mario Santoro2, Juan Alberto Morales2, Louis M. Huzella3, Victor F. Kalasinsky4, Allen Foley5, Nancy Mettee6, Elliott R. Jacobson1

1University of Florida, College of Veterinary Medicine, Small Animal Clinical Sciences, PO Box 100126, Gainesville, Florida 32610, USA
2Departamento de Patología, Escuela de Medicina Veterinaria, Universidad Nacional, PO Box 86, Heredia 3000, Costa Rica
3Armed Forces Institute of Pathology, Department of Veterinary Pathology, Building 54, Room G-117,
14th Street and Alaska Avenue NW, Washington, DC 20306, USA
4Armed Forces Institute of Pathology, Department of Environmental and Infectious Disease Sciences,
14th Street and Alaska Avenue NW, Washington, DC 20306, USA
5Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, Jacksonville Field Laboratory,
6134 Authority Avenue, Building 200, Jacksonville, Florida 32221, USA
6Marinelife Center at Juno Beach, 14200 US Highway One, Juno Beach, Florida 33408, USA

ABSTRACT: Eighteen green turtles Chelonia mydas recovered from the Atlantic and Gulf coasts of Florida and Tortuguero National Park, Costa Rica, were diagnosed with renal oxalosis by histopathological examination. Affected sea turtles included 14 adults and 4 immature animals, which comprised 26% (18/69) of green turtle necropsy cases available for review. Calcium oxalate deposition ranged from small to moderate amounts and was associated with granuloma formation and destruction of renal tubules. All affected turtles died from traumatic events or health problems unrelated to renal oxalosis; however, 1 immature turtle had notable associated renal injury. Crystal composition was confirmed by infrared and scanning electron microscopy and energy dispersive X-ray analysis. The source of calcium oxalate is unknown and is presumed to be of dietary origin.

KEY WORDS: Green sea turtle · Chelonia mydas · Calcium oxalate · Renal oxalosis

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Cite this article as: Stacy BA, Santoro M, Morales JA, Huzella LM and others (2008) Renal oxalosis in free-ranging green turtles Chelonia mydas. Dis Aquat Org 80:45-49.

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