Feeding habits of the franciscana dolphin (Pontoporia blainvillei) in south-eastern Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of Groningen-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCampos, Laura Busin-
Autor(es): dc.creatorLopes, Xênia Moreira [UNESP]-
Autor(es): dc.creatorDa Silva, Ednilson-
Autor(es): dc.creatorSantos, Marcos César De Oliveira-
Data de aceite: dc.date.accessioned2022-02-22T00:29:27Z-
Data de disponibilização: dc.date.available2022-02-22T00:29:27Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1017/S0025315420000120-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/200114-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/200114-
Descrição: dc.descriptionThis study evaluated the feeding habits of the franciscana dolphin (Pontoporia blainvillei) in south-eastern Brazil. Stomach contents were collected from a total of 145 dead specimens found incidentally caught by fishing vessels or stranded between 2005 and 2015. Fish otoliths, cephalopod beaks and whole non-digested prey were used for prey species identification. A total of 9337 prey items were identified, including 26 species of teleost fishes and three species of cephalopods. The most important prey families were Sciaenidae among fish and Loliginidae among cephalopods. Franciscana dolphins tended to feed on small fish (mean = 5.25 cm) and cephalopods (mean = 8.57 cm). The index of relative importance (IRI) showed that Pellona harroweri and Doryteuthis plei were the most important prey for both males and females. The PERMANOVA test confirmed that there is no significant difference between the feeding habits of different sexes, but detected a significant difference among seasons. Overall, our results show that franciscana dolphins are predominantly ichthyophagous and non-selective in relation to the type of prey, feeding on pelagic, demersal and pelagic-demersal prey.-
Descrição: dc.descriptionLaboratório de Biologia da Conservação de Mamíferos Aquáticos Departamento de Oceanografia Biológica Instituto Oceanográfico Universidade de São Paulo (USP) Campus da Capital Cidade Universitária-
Descrição: dc.descriptionGroningen Institute for Evolutionary Life Sciences Faculty of Science and Engineering University of Groningen, Nijenborgh 7-
Descrição: dc.descriptionLaboratório de Biologia da Conservação de Cetáceos Departamento de Zoologia Instituto de Biociências Universidade Estadual de São Paulo (UNESP) Campus de Rio Claro-
Descrição: dc.descriptionLaboratório de Biologia da Conservação de Cetáceos Departamento de Zoologia Instituto de Biociências Universidade Estadual de São Paulo (UNESP) Campus de Rio Claro-
Formato: dc.format301-313-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Marine Biological Association of the United Kingdom-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectFeeding habit-
Palavras-chave: dc.subjectPontoporia blainvillei-
Palavras-chave: dc.subjectSouth-western Atlantic-
Palavras-chave: dc.subjectStomach content analysis-
Título: dc.titleFeeding habits of the franciscana dolphin (Pontoporia blainvillei) in south-eastern Brazil-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.