EVIDENCE of A FAILED PREDATION ATTEMPT on A GUIANA DOLPHIN, Sotalia guianensis, BY A BULL SHARK, Carcharhinus leucas, IN BRAZILIAN WATERS.

dc.contributor.authorSantos, Marcos Cesar de Oliveira
dc.contributor.authorGadig, Otto Bismarck Fazzano [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:55:47Z
dc.date.available2014-05-20T13:55:47Z
dc.date.issued2009-01-01
dc.description.abstractEven though shark-cetacean interactions have been the subject of numerous studies worldwide, several ecological aspects such as competition, predation risk and co-evolution remain unclear. on February 16th, 2008, during a photo-identification survey to investigate population parameters of Guiana dolphins, Sotalia guianensis, in estuarine waters of Parana State (25[degree]S; 48[degree]W), Brazil, an adult dolphin was photographed without its dorsal fin. A detailed analysis of the healed area on the injured dolphin showed that the circular, crescent-shaped outlined wound was provoked by the bite of a bull shark, Carcharhinus leucas. Wound shape, prey-predator distributional patterns (sympatry) and feeding habits of the shark species here considered were indicative of the species' identity. The wound is likely to be the result of a failed predation attempt. Interactions between C. leucas and S. guianensis should be expected, since they are sympatric along almost all of their distribution range in the tropical and subtropical western South Atlantic. The presented observation adds S. guianensis to the list of cetacean species involved in interactions with large coastal predatory sharks.en
dc.description.affiliationProjeto Atlantis, Laboratorio de Biologia da Conservacao de Cetaceos, Instituto de Biociencias, Universidade Estadual Paulista (UNESP), Avenida 24-A, 1515, Rio Claro, SP 13506-900, Brazil
dc.description.affiliationUnespProjeto Atlantis, Laboratorio de Biologia da Conservacao de Cetaceos, Instituto de Biociencias, Universidade Estadual Paulista (UNESP), Avenida 24-A, 1515, Rio Claro, SP 13506-900, Brazil
dc.format.extent93-98
dc.identifierhttp://www.labomar.ufc.br/images/stories/arquivos/ArqCienMar/V42_2_2009/acm_2009_42_2_13.pdf
dc.identifier.citationArquivos de Ciências do Mar. , v. 42, n. 2, p. 93-98, 2009.
dc.identifier.issn0374-5686
dc.identifier.lattes2161551575581523
dc.identifier.orcid0000-0001-8423-7299
dc.identifier.urihttp://hdl.handle.net/11449/19982
dc.identifier.wosZOOREC:ZOOR14709068757
dc.language.isoeng
dc.relation.ispartofArquivos de Ciências do Mar
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleEVIDENCE of A FAILED PREDATION ATTEMPT on A GUIANA DOLPHIN, Sotalia guianensis, BY A BULL SHARK, Carcharhinus leucas, IN BRAZILIAN WATERS.en
dc.typeArtigo
dcterms.licensehttp://www.labomar.ufc.br/index.php?option=com_content&task=view&id=143&Itemid=48
unesp.author.lattes2161551575581523[2]
unesp.author.orcid0000-0001-8423-7299[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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