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Tour operators as a tool to improve information on data‐deficient cetacean species

2025-02Journal article Restricted access
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dc.contributor.authorPeres dos Santos, Rui Pedro
dc.contributor.authorRodríguez, Yasmina
dc.contributor.authorSears, Richard
dc.contributor.authorMagno, Ramiro
dc.contributor.authorCastilho, Rita
dc.date.accessioned2025-02-26T12:13:59Z
dc.date.available2025-02-26T12:13:59Z
dc.date.issued2025-02
dc.description.abstractUnderstanding the distribution and behaviour of species is crucial for ecosystem assessment and economic evaluations. Despite global research efforts, some cetacean species or populations remain data deficient. False killer whales (Pseudorca crassidens) are among these species, possibly due to their pelagic behaviour and high mobility. This study focused on the Azorean Archipelago, an ecologically rich region influenced by the Gulf Stream and North Atlantic Current, where false killer whales have been regularly observed over the last decade by the whale watching operators. Using opportunistic data collection from tourist operators, we established the first long-term study of false killer whales in the NE Atlantic Ocean. Results revealed sightings between April and October, with a peak from July to September. False killer whale groups were observed interacting with other species, particularly bottlenose dolphins (Tursiops truncatus). The photo-identification analysis produced an individual catalogue and identified associations between individuals and groups. Four of these animals presented dorsal fin injury patterns suggestive of interactions with fishing gear. Open population capture-recapture (openCR) models estimated a population of 198 individuals in the research area. This study demonstrates the importance of opportunistic data collection in understanding poorly studied species. The findings contribute insights into false killer whale presence, behaviour and potential threats in the studied region. Future research should expand to winter data collection, comprehensive fishery interaction studies and population dynamics assessments for effective conservation efforts.eng
dc.identifier.doi10.1002/aqc.70067
dc.identifier.eissn1099-0755
dc.identifier.issn1052-7613
dc.identifier.urihttp://hdl.handle.net/10400.1/26814
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationTemporal and spatial distribution of cetaceans in the Azores as a means to define migration and movement patterns and associated biotic and abiotic distributional driving factors.
dc.relation.ispartofAquatic Conservation: Marine and Freshwater Ecosystems
dc.rights.uriN/A
dc.subjectAzores
dc.subjectFalse killer whales
dc.subjectOpenCR
dc.subjectPseudorca crassidens
dc.subjectTour operators
dc.titleTour operators as a tool to improve information on data‐deficient cetacean specieseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleTemporal and spatial distribution of cetaceans in the Azores as a means to define migration and movement patterns and associated biotic and abiotic distributional driving factors.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//UI%2FBD%2F151306%2F2021/PT
oaire.citation.issue2
oaire.citation.startPagee70067
oaire.citation.titleAquatic Conservation: Marine and Freshwater Ecosystems
oaire.citation.volume35
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePeres dos Santos
person.familyNameCastilho
person.givenNameRui Pedro
person.givenNameRita
person.identifier452212
person.identifier.ciencia-id2912-6AF4-751A
person.identifier.ciencia-id0513-0407-A6C1
person.identifier.orcid0000-0003-0727-3688
person.identifier.ridB-6185-2008
person.identifier.scopus-author-id56271196600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublication.latestForDiscovery96bc4f1c-6666-4891-882a-c781e5b46825
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