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Stranding patterns and feeding ecology of striped dolphins, Stenella coeruleoalba, in Western Iberia (1981–2014)

2021Journal article Restricted access
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dc.contributor.authorMarçalo, Ana
dc.contributor.authorGiménez, Joan
dc.contributor.authorNicolau, Lídia
dc.contributor.authorFrois, Jessica
dc.contributor.authorFerreira, Marisa
dc.contributor.authorSequeira, Marina
dc.contributor.authorEira, Catarina
dc.contributor.authorPierce, Graham J.
dc.contributor.authorVingada, José
dc.date.accessioned2021-10-29T16:50:14Z
dc.date.available2021-10-29T16:50:14Z
dc.date.issued2021
dc.description.abstractThe striped dolphin, Stenella coeruleoalba, is one of the most abundant cetacean species off the Western Iberian coast, however, studies on the species regarding biology, ecology, threats or conservation efforts are lacking. This study investigates stranding patterns (years 1981–2014) and diet (2002–2014) of striped dolphins (Stenella coeruleoalba) off the Portuguese mainland coast. Stranded animals were sampled along the whole coast (n = 252). Most stranded striped dolphins were recorded in the first half of the year and strandings increased over time. Analysis of stomach contents (n = 36) showed that striped dolphins in the area are mostly piscivorous (80% by number and weight of the diet), taking pelagic, meso-pelagic and demersal species. In terms of reconstructed biomass prey, sardine (Sardina pilchardus) and blue whiting (Micromesistius poutassou) were the most important. Prey items revealed that both sexes forage at a range of depths (pelagic and demersal systems) in both neritic and oceanic habitats, although females feed more often in coastal waters. Moreover, diet results also indicate that striped dolphins may co-occur with other neritic cetacean species, such as the common dolphin, Delphinus delphis, thus sharing some preferred prey species. The study revealed that striped dolphins on the Iberian coast interact with coastal fisheries sharing the same target species. Management measures for fisheries will need to be consistent with an ecosystem-based approach.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.seares.2021.101996pt_PT
dc.identifier.issn1385-1101
dc.identifier.urihttp://hdl.handle.net/10400.1/17274
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.subjectFeeding ecologypt_PT
dc.subjectStriped dolphinpt_PT
dc.subjectStenella coeruleoalbapt_PT
dc.subjectStrandingspt_PT
dc.subjectStomach content analysispt_PT
dc.subjectWestern Iberiapt_PT
dc.titleStranding patterns and feeding ecology of striped dolphins, Stenella coeruleoalba, in Western Iberia (1981–2014)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage101996pt_PT
oaire.citation.titleJournal of Sea Researchpt_PT
oaire.citation.volume169pt_PT
person.familyNameMarçalo
person.givenNameAna
person.identifierR-000-JHM
person.identifier.ciencia-id7314-E2C4-78A2
person.identifier.orcid0000-0002-0485-341X
person.identifier.scopus-author-id6505855915
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication7a0927c2-77ac-4512-9dae-a34da3f490e9
relation.isAuthorOfPublication.latestForDiscovery7a0927c2-77ac-4512-9dae-a34da3f490e9

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