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Unveiling patterns in cetacean strandings along southern atlantic iberia: temporal and spatial trends, seasonality, and causes of death

2026-02-16Artigo científico Acesso aberto
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg13:Ação Climática
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorHofman, Jan
dc.contributor.authorCrawford, Sarah
dc.contributor.authorFialho, Ana
dc.contributor.authorCasero, Maria
dc.contributor.authorPontes, João
dc.contributor.authorConceição Alves da Silva, Ana Maria
dc.contributor.authorNicolau, Lídia
dc.contributor.authorMarçalo, Ana
dc.date.accessioned2026-03-09T10:37:55Z
dc.date.available2026-03-09T10:37:55Z
dc.date.issued2026-02-16
dc.description.abstractWe compiled 46 years of cetacean strandings in the Algarve, Portugal, describing temporal–spatial patterns, size–sex structure,and causes of death (COD). We analyzed national records and years with a dedicated regional stranding network (SN) to assessannual/seasonal trends, spatial hotspots, and compare biometrics and COD. In total, 1231 strandings were recorded; 73.2% wereidentified to 19 species. Five species comprised almost 68% of events: common dolphins 39.0%, striped dolphins 8.9%, minkewhales 8.0%, bottlenose dolphins 8.0%, and harbor porpoises 4.3%. GAMs confirmed that recorded strandings rose over timeand were higher during SN years (mean 63 yr.−1). Stranding hotspots occurred near Cape Santa Maria (Faro–Olhão), Lagos–Portimão, and Sagres; minke whales and harbor porpoises concentrated east of Cape Santa Maria. Seasonality was significantonly for minke whales (spring peak). Size–sex patterns were largely similar, with exceptions for larger stranded striped dolphinfemales and minke strandings dominated by juveniles. COD assignment improved with monitoring and was assessed for 75.6%of the observed carcasses. Bycatch was the leading COD for common dolphins, bottlenose dolphins, and minke whales. Thisstudy highlights the importance of a regional stranding network and a need for more ecological studies of cetaceans in the region.eng
dc.description.sponsorshipUID/04326/2025; UID/PRR/04326/2025; UIBP/04326/2020
dc.identifier.doi10.1111/mms.70145
dc.identifier.eissn1748-7692
dc.identifier.issn0824-0469
dc.identifier.urihttp://hdl.handle.net/10400.1/28378
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationCentre for Marine and Environmental Research
dc.relationAlgarve Centre for Marine Sciences
dc.relation.ispartofMarine Mammal Science
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAlgarve
dc.subjectBycatch
dc.subjectCause of death
dc.subjectCetacean strandings
dc.subjectFisheries interactions
dc.subjectPortugal
dc.subjectSex and body size
dc.subjectSpatial hotspots
dc.titleUnveiling patterns in cetacean strandings along southern atlantic iberia: temporal and spatial trends, seasonality, and causes of deatheng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberLA/P/0101/2020
oaire.awardNumberUIDB/04326/2020
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.citation.issue2
oaire.citation.titleMarine Mammal Science
oaire.citation.volume42
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameHofman
person.familyNamePontes
person.familyNameConceição Alves da Silva
person.familyNameMarçalo
person.givenNameJan
person.givenNameJoão
person.givenNameAna Maria
person.givenNameAna
person.identifierR-000-JHM
person.identifier.ciencia-id7314-E2C4-78A2
person.identifier.orcid0009-0005-3841-6698
person.identifier.orcid0000-0002-7223-5699
person.identifier.orcid0009-0007-1365-3042
person.identifier.orcid0000-0002-0485-341X
person.identifier.scopus-author-id6505855915
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
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