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Parasitic isopods associated with sea turtles nesting in Brazil

Published online by Cambridge University Press:  01 December 2014

José C. Rocha Júnior ,
Joseph B. Pfaller ,
Ricardo Corbetta  and
Luciana Veríssimo
José C. Rocha Júnior
Affiliation:
Projeto TAMAR/ICMBio, Praia do Forte, Mata de São João, BA, Brazil Universidade do Vale do Itajaí – UNIVALI, Itajaí, SC, Brazil
Joseph B. Pfaller*
Affiliation:
Archie Carr Center of Sea Turtle Research and Department of Biology, University of Florida, Gainesville, FL, USA Caretta Research Project, Savannah, GA, USA
Ricardo Corbetta
Affiliation:
Universidade do Vale do Itajaí – UNIVALI, Itajaí, SC, Brazil
Luciana Veríssimo
Affiliation:
Projeto TAMAR/ICMBio, Praia do Forte, Mata de São João, BA, Brazil
*
Correspondence should be addressed to: J.B. Pfaller, Archie Carr Center of Sea Turtle Research and Department of Biology, University of Florida, Gainesville, FL. email: jpfaller@ufl.edu
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Abstract

Studies of sea turtle epibiosis have focused on the diversity and ecology of facultative commensalisms and less attention has been given to parasitic associations, in which the epibiont species derives nutrients from the tissue of the host turtle. We present the first description and quantitative survey of the parasitic isopods Excorallana costata, Excorallana bicornis and Excorallana oculata on loggerhead (N = 79) and hawksbill turtles (N = 23), and E. costata on olive ridley turtles (N = 9), nesting on Praia do Forte, Bahia, Brazil during the 2009–2010 season. Excorallana costata was the most common isopod species (N = 651), followed by E. bicornis (N = 77) and E. oculata (N = 20). Patterns include: (1) E. costata exhibited a higher frequency and intensity of parasitism than E. bicornis and E. oculata and (2) loggerheads hosted parasitic isopods at a higher frequency and intensity than hawksbills and olive ridleys. We also detected temporal shifts in the occurrence and intensity of parasitism across the nesting season, which strongly suggests that turtles were parasitized by all three isopod species during their internesting periods. Because parasitic isopods were observed only rarely prior to the 2009–2010 turtle-nesting season and have continued to be common in subsequent seasons, it is important to gain a better understanding of the basic biology of these interactions, the reasons for their recent emergence, and the potential biological impacts on turtle, as well as isopod, populations.

Keywords

isopodsExcorallanasea turtleparasiteepibiont
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 95 , Issue 5 , August 2015 , pp. 973 - 981
Copyright
Copyright © Marine Biological Association of the United Kingdom 2014 

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References

Alonso, L. (2007) Epibiontes asociados a la tortuga verde juvenil (Chelonia mydas) en el area de alimentación y desarrollo de Cerro Verde, Uruguay. Masters thesis. Universidad de Buenos Aires, Buenos Aires City, Argentina.Google Scholar
Bird, P.M. (1981) The occurrence of Cirolana borealis (Isopoda) in the hearts of sharks from Atlantic coastal waters of Florida. Fishery Bulletin 79, 376–383.Google Scholar
Bunkley-Williams, L. and Williams, E.H. Jr (1998) Isopods associated with fishes: a synopsis and corrections. Journal of Parasitology 84, 893–896.CrossRefGoogle ScholarPubMed
Bustard, H.R. (1976) Turtles of coral reefs and coral islands. In Jones, O.A. and Endean, R. (eds) Biology and geology of coral reefs. New York, NY: Academic Press, pp. 343–368.CrossRefGoogle Scholar
Caine, E.A. (1986) Carapace epibionts of nesting loggerhead turtles: Atlantic coast of U.S.A. Journal of Experimental Marine Biology and Ecology 95, 15–26.CrossRefGoogle Scholar
Colman, L.P. (2009) Dieta da tartaruga-oliva Lepidochelys olivacea (Eschscholtz, 1829) no litoral do estado de Sergipe, Brasil. Masters thesis. Universidade Federal da Bahia, Salvador, Brazil.Google Scholar
da Silva, A.C.C.D., dos Santos, E.A.P., das C. Oliveira, F.L., Weber, M.I., Batista, J.A.F., Serafini, T.Z. and de Castilhos, J.C. (2011) Satellite-tracking reveals multiple foraging strategies and threats for olive ridley turtles in Brazil. Marine Ecology Progress Series 443, 237–247.CrossRefGoogle Scholar
Delaney, P.M. (1984) Isopods of the genus Excorallana Stebbing, 1904 from the Gulf of California, Mexico (Crustacea, Isopoda, Corallanidae). Bulletin of Marine Science 34, 1–20.Google Scholar
Delaney, P.M. (1989) Phylogeny and biogeography of the marine isopod family Corallanidae (Crustacea, Isopoda, Flabellaria). Contribution in Science, Natural History Museum of Los Angeles County 409, 1–75.Google Scholar
Eckert, K.L. and Eckert, S.A. (1988) Pre-reproductive movements of leatherback sea turtes (Dermochelys coriacea) nesting in the Caribbean. Copeia 1988, 400–406.CrossRefGoogle Scholar
Espinosa-Pérez, M. del C. and Hendrickx, M.E. (2006) A comparative analysis of biodiversity and distribution of shallow-water marine isopods (Crustacea: Isopoda) from polar and temperate waters in the East Pacific. Belgium Journal of Zoology 136, 219–247.Google Scholar
Frick, M.G. and Pfaller, J.B. (2013) Sea turtle epibiosis. In Wyneken, J., Lohmann, K.J. and Musick, J.A. (eds) The biology of sea turtles, Volume III. Boca Raton, FL: CRC Press, pp. 399–426.Google Scholar
Frick, M.G., Williams, K.L. and Robinson, M. (1998) Epibionts associated with nesting loggerhead sea turtles (Caretta caretta) in Georgia. Herpetological Review 29, 211–214.Google Scholar
George, R.H. (1997) Health problems and disease of sea turtles. In Lutz P.L. and Musick J.A. (eds)The biology of the sea turtles. Boca Raton, FL: CRC Press, pp. 363–385.Google Scholar
Greenblatt, R.J., Work, T.M., Balazs, G.H., Sutton, C.A., Casey, R.N. and Casey, J.W. (2004) The Ozobranchus leech is a candidate mechanical vector for the fibropapilloma-associated turtle herpesvirus found latently infecting skin tumors on Hawaiian green turtles (Chelonia mydas). Virology 1, 101–110.CrossRefGoogle Scholar
Hendrickson, J.R. (1958) The green turtle, Chelonia mydas (Linn.) in Malaya and Sarawak. Proceedings of the Zoological Society of London 130, 455–535.CrossRefGoogle Scholar
IUCN (International Union for the Conservation of Nature and Natural Resources) (2014) The IUCN red list of threatened species. Version 2014.2. http://www.iucnredlist.orgGoogle Scholar
Lemos de Castro, A. (1960) Quatro espécies novas, Brasileiros, de Excorallana Stebbing, 1904. Arquivos do Museu Nacional. Rio de Janeiro 50, 61–77.Google Scholar
Lemos de Castro, A. and Lima, I.M.B. (1971) Ocorrências de Excorallana subtilis (Hansen), Excorallana oculata (Hansen), Excorallana warmingii (Hansen) e descrição de uma espécie nova Excorallana bicornis do litoral norte do Brasil. Arquivos do Museu de Historia Natural 1, 135–142.Google Scholar
Marcovaldi, M. and Chaloupka, M. (2007) Conservation status of the loggerhead sea turtle in Brazil: an encouraging outlook. Endangered Species Research 3, 133–143.CrossRefGoogle Scholar
Marcovaldi, M.Â. and dei Marcovaldi, G.G. (1999) Marine turtles of Brazil: the history and structure of Projeto TAMAR-IBAMA. Biological Conservation 91, 35–41.CrossRefGoogle Scholar
Marcovaldi, M.Â., Lopez, G.G., Soares, L.S., Lima, E.H.S.M., Thomé, J.C.A. and Almeida, A.P. (2010) Satellite-tracking of female loggerhead turtles highlights fidelity behavior in northeastern Brazil. Endangered Species Research 12, 263–272.CrossRefGoogle Scholar
Marcovaldi, M.Â., Lopez, G.G., Soares, L.S. and López-Mendilaharsu, M. (2012) Satellite-tracking of hawksbill turtles Eretmochelys imbricata nesting in northern Bahia, Brazil: insights on movements and foraging destinations. Endangered Species Research 17, 123–132.CrossRefGoogle Scholar
Monod, T. (1975) Sur un Argathona (Crustacea, Isopoda) de Kenya. Bulletin du Muséum National d'Histoire Naturelle, Paris 226, 999–1004.Google Scholar
Musick, J.A. and Limpus, C.J. (1997) Habitat utilization and migration in juvenile sea turtles. In Lutz, P.L. and Musick, J.A. (eds) The biology of sea turtles. Boca Raton, FL: CRC Press, pp. 137–163.Google Scholar
Naro-Maciel, E., Bondioli, A.C.V., Martin, M., Almedia, A. de P., Baptistotte, C., Bellini, C., Marcovaldi, M.Â., Santos, A.J.B. and Amato, G. (2012) The interplay of homing and dispersal in green turtles: a focus on the southwestern Atlantic. Journal of Heredity 103, 792–805.CrossRefGoogle ScholarPubMed
Pires-Vanin, A.M.S. (1989) Marine Isopoda: Anthuridea, Asellota (Paris), Flabellifera (Paris), and Valvifera. In Young, P.S. (ed.) Catalogue of Crustacea of Brazil. Rio de Janeiro: Museu Nacional, pp. 609–624.Google Scholar
Plotkin, P. (2003) Adult migrations and habitat use. In Lutz, P.L., Musick, J.A. and Wyneken, J. (eds) The biology of sea turtles, Volume II. Boca Raton, FL: CRC Press, pp. 225–241.Google Scholar
Poore, G.C. and Bruce, N.L. (2012) Global diversity of marine isopods (except Asellota and crustacean symbionts). PLoS ONE 7, e43529.CrossRefGoogle ScholarPubMed
Proietti, M.C., Reisser, J., Marins, L.F., Rodriguez-Zarate, C., Marcovaldi, M.Â., Monteiro, D.S., Pattiaratchi, C. and Secchi, E.R. (2014) Genetic structure and natal origins of immature hawksbill turtles (Eretmochelys imbricata) in Brazilian waters. PLoS ONE 9, e88746.CrossRefGoogle ScholarPubMed
Ravichandran, S., Rameshkumar, G. and Balasubramanian, T. (2010) Infestation of isopod parasites in commercial fishes. Journal of Parasitic Diseases 34, 97–98.CrossRefGoogle Scholar
Schärer, M.T. (2003) A survey of the epibiota of Eretmochelys imbricata (Testudines: Cheloniidae) of Mona Island, Puerto Rico. Revista de Biologia Tropical 51, 87–89.Google ScholarPubMed
Wahl, M. and Mark, O. (1999) The predominately facultative nature of epibiosis: experimental and observational evidence. Marine Ecology Progress Series 187, 59–66.CrossRefGoogle Scholar
Williams, E.H. Jr, Bunkley-Williams, L., Boulon, R.H. Jr, Eckert, K.L. and Bruce, N.L. (1996) Excorallana acuticauda (Isopoda, Corallanidae) an associate of leatherback turtles in the northeastern Caribbean, with a summary of isopods recorded from sea turtles. Crustaceana 69, 1014–1017.CrossRefGoogle Scholar
Williams, J.D. and Boyko, C.B. (2012) The global diversity of parasitic isopods associated with crustacean hosts (Isopoda: Bopyroidea and Cryptoniscoidea). PLoS ONE 7, e35350.CrossRefGoogle ScholarPubMed