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dc.contributor.author
Denuncio, Pablo Ezequiel
dc.contributor.author
Bastida, Ricardo Oscar
dc.contributor.author
Danilewicz, Daniel
dc.contributor.author
Morón, Sergio
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Rodriguez Heredia, Sergio
dc.contributor.author
Rodriguez, Diego Horacio
dc.date.available
2017-09-26T16:56:51Z
dc.date.issued
2013-02
dc.identifier.citation
Denuncio, Pablo Ezequiel; Bastida, Ricardo Oscar; Danilewicz, Daniel; Morón, Sergio; Rodriguez Heredia, Sergio; et al.; Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina; European Association for Aquatic Mammals; Aquatic Mammals; 39; 2-2013; 21-28
dc.identifier.issn
0167-5427
dc.identifier.uri
http://hdl.handle.net/11336/25123
dc.description.abstract
Information of birth and early life history of cetaceans is scarce and generally estimated indirectly from pregnant females. Based on 91 calves of Franciscana dolphins (Pontoporia blainvillei) stranded or by-caught in artisanal fisheries from the northern coast of Argentina, it was possible to characterize the calving season and the lactation period in the Franciscana dolphins, based in the evidence of milk into their stomach contents. The calving season is extended during four months, with a high frequency in November. The mean size at birth was 64 cm, a lower size than estimated in other areas of the species geographical distribution. The lactation have duration of at least 7 months with two stages: (a) strict lactation period with calves with exclusively traces of milk in its stomach contents and with high occurrence during November and a mean body length of 70.8 cm, and (b) beginning of predation, specimens with a mix milk-solid food and a mean body length of 87.8cm, with high individuals incidence in February. Our results show a short exclusive lactation with an early feeding predation evidences. The lactation pattern of the Franciscana dolphins found in this work is common in short lifespan small and coastal cetacean.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
European Association for Aquatic Mammals
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Calving Season
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Pontoporia Blainvillei
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Lactation
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Birth
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Argentina
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Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-21T18:00:16Z
dc.journal.volume
39
dc.journal.pagination
21-28
dc.journal.pais
Reino Unido
dc.journal.ciudad
London
dc.description.fil
Fil: Denuncio, Pablo Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Bastida, Ricardo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.description.fil
Fil: Danilewicz, Daniel. Universidade Estadual de Santa Cruz; Brasil. Instituto Aqualie; Brasil
dc.description.fil
Fil: Morón, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; Argentina
dc.description.fil
Fil: Rodriguez Heredia, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; Argentina
dc.description.fil
Fil: Rodriguez, Diego Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencia Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina
dc.journal.title
Aquatic Mammals
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1578/AM.39.1.2013.73
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.aquaticmammalsjournal.org/index.php?option=com_content&view=article&id=625:short-note-calf-chronology-of-the-franciscana-dolphin-pontoporia-blainvillei-birth-onset-of-feeding-and-duration-of-lactation-in-coastal-waters-of-argentina&catid=44:volume-39-issue-1&Itemid=132
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