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Tagging, ranging patterns, and behavior of franciscana dolphins ( Pontoporia blainvillei ) off Argentina and Brazil: Considerations for conservation

2021-09Journal article Open access
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dc.contributor.authorWells, Randall S.
dc.contributor.authorCremer, Marta J.
dc.contributor.authorBerninsone, Leonardo G.
dc.contributor.authorAlbareda, Diego
dc.contributor.authorWilkinson, Krystan A.
dc.contributor.authorStamper, M. Andrew
dc.contributor.authorPaitach, Renan L.
dc.contributor.authorBordino, Pablo
dc.date.accessioned2021-10-11T12:46:05Z
dc.date.available2021-10-11T12:46:05Z
dc.date.issued2021-09
dc.description.abstractThe franciscana dolphin, Pontoporia blainvillei, is one of the most threatened cetaceans in the Southwestern Atlantic. Within their limited coastal range off Argentina, Uruguay, and Brazil, franciscanas face human activities, including artisanal gillnet fishing and coastal development. A lack of information on ranging patterns, population structure, and behavior for informing management led to efforts to develop and apply approaches to tag franciscanas in Argentina (Bahía Samborombon [BS], Bahía San Blas [BSB]) and Brazil (Baía Babitonga [BB]) during 2005–2013. Findingsfrom VHF tags deployed in BS in 2005 during feasibility tests for catching and handling franciscanas for tagging suggested residency over periods of weeks. Subsequently, satellite-linked tags confirmed patterns of residency at each site. Home range size varied, with ranges of 5–7 km2 for BB, 51–312 km2 for BS, and 49–1,014 km2 for BSB. Diving patterns varied across sites, with the animals using the entire water column, exposing them to fishing nets regardless of the depth at which the nets were set. Tracking durations and follow-up observations indicated that this research approach is useful for studies of franciscanas. Small, definable ranges facilitate relating specific geographically based threats to appropriate population units, increasing the potential for effective conservation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/mms.12879pt_PT
dc.identifier.eissn1748-7692
dc.identifier.urihttp://hdl.handle.net/10400.1/17216
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectArtisanal fisheriespt_PT
dc.subjectCore areapt_PT
dc.subjectDive depthspt_PT
dc.subjectDolphin conservation,pt_PT
dc.subjectFranciscanapt_PT
dc.subjectHarbor developmentpt_PT
dc.subjectHome rangept_PT
dc.subjectPontoporia blainvilleipt_PT
dc.subjectSatellite-linked telemetrypt_PT
dc.subjectSite fidelitypt_PT
dc.titleTagging, ranging patterns, and behavior of franciscana dolphins ( Pontoporia blainvillei ) off Argentina and Brazil: Considerations for conservationpt_PT
dc.title.alternativeMarcação, padrões variados e comportamento dos golfinhos franciscanas (Pontoporia blainvillei) fora da Argentina e do Brasil: Considerações para a conservaçãopt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleMarine Mammal Sciencept_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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