Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina

Autores
Denuncio, Pablo Ezequiel; Bastida, Ricardo Oscar; Danilewicz, Daniel; Morón, Sergio; Rodriguez Heredia, Sergio; Rodriguez, Diego Horacio
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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.
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
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
Fil: Danilewicz, Daniel. Universidade Estadual de Santa Cruz; Brasil. Instituto Aqualie; Brasil
Fil: Morón, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; Argentina
Fil: Rodriguez Heredia, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; Argentina
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
Materia
Calving Season
Pontoporia Blainvillei
Lactation
Birth
Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/25123
Acceder
id CONICETDig_eb155ba7cd103127a416dfcff880f22f
oai_identifier_str oai:ri.conicet.gov.ar:11336/25123
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of ArgentinaDenuncio, Pablo EzequielBastida, Ricardo OscarDanilewicz, DanielMorón, SergioRodriguez Heredia, SergioRodriguez, Diego HoracioCalving SeasonPontoporia BlainvilleiLactationBirthArgentinahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Information 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.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; ArgentinaFil: 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; ArgentinaFil: Danilewicz, Daniel. Universidade Estadual de Santa Cruz; Brasil. Instituto Aqualie; BrasilFil: Morón, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; ArgentinaFil: Rodriguez Heredia, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; ArgentinaFil: 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; ArgentinaEuropean Association for Aquatic Mammals2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/vnd.rarapplication/pdfhttp://hdl.handle.net/11336/25123Denuncio, 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; 21-280167-5427CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1578/AM.39.1.2013.73info: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=132info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:17Zoai:ri.conicet.gov.ar:11336/25123instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:58:17.422CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
title Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
spellingShingle Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
Denuncio, Pablo Ezequiel
Calving Season
Pontoporia Blainvillei
Lactation
Birth
Argentina
title_short Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
title_full Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
title_fullStr Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
title_full_unstemmed Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
title_sort Calf chronology of the Franciscana dolphin (Pontoporia blainvillei): birth, onset of feeding, and duration of lactation in coastal waters of Argentina
dc.creator.none.fl_str_mv Denuncio, Pablo Ezequiel
Bastida, Ricardo Oscar
Danilewicz, Daniel
Morón, Sergio
Rodriguez Heredia, Sergio
Rodriguez, Diego Horacio
author Denuncio, Pablo Ezequiel
author_facet Denuncio, Pablo Ezequiel
Bastida, Ricardo Oscar
Danilewicz, Daniel
Morón, Sergio
Rodriguez Heredia, Sergio
Rodriguez, Diego Horacio
author_role author
author2 Bastida, Ricardo Oscar
Danilewicz, Daniel
Morón, Sergio
Rodriguez Heredia, Sergio
Rodriguez, Diego Horacio
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Calving Season
Pontoporia Blainvillei
Lactation
Birth
Argentina
topic Calving Season
Pontoporia Blainvillei
Lactation
Birth
Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv 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.
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
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
Fil: Danilewicz, Daniel. Universidade Estadual de Santa Cruz; Brasil. Instituto Aqualie; Brasil
Fil: Morón, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; Argentina
Fil: Rodriguez Heredia, Sergio. Fundación Mundo Marino. San Clemente del Tuyú; Argentina
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
description 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.
publishDate 2013
dc.date.none.fl_str_mv 2013-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/25123
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
0167-5427
CONICET Digital
CONICET
url http://hdl.handle.net/11336/25123
identifier_str_mv 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
0167-5427
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1578/AM.39.1.2013.73
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
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/vnd.rar
application/pdf
dc.publisher.none.fl_str_mv European Association for Aquatic Mammals
publisher.none.fl_str_mv European Association for Aquatic Mammals
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269513133850624
score 13.13397

Publicaciones similares