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New insights on the ecology and biology of the rare shark species Oxynotus paradoxus from recent records

2024Artigo científico Acesso aberto
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg15:Proteger a Vida Terrestre
datacite.subject.sdg13:Ação Climática
dc.contributor.authorGraça Aranha Carvalho Ramos, Sofia
dc.contributor.authorDias, Ester
dc.contributor.authorMarsili, Tiago
dc.contributor.authorPires da Rocha, Pedro
dc.contributor.authorTeodosio, Maria
dc.contributor.authorFigueiredo, Ivone
dc.date.accessioned2026-04-06T11:45:03Z
dc.date.available2026-04-06T11:45:03Z
dc.date.issued2024
dc.description.abstractOxynotus paradoxus, documented in the Eastern Atlantic Ocean from Senegal to Scotland at depths ranging between 92 and 1044 m, has been a subject of limited scientific attention in Portugal. Despite its presence in various Portuguese occurrence checklists, only two scientific studies have reported O. paradoxus, one off the mainland and the other off the Azores islands. In this study, conducted during fishing campaigns, four O. paradoxus specimens were caught off the southwest coast of Portugal (SW Iberian Peninsula) at depths ranging between 742 and 1238 m. Notably, an adult female achieved a new maximum depth record for this species, measuring 650 mm in total length. By examining this adult female, we provide novel insights into the ecology and biology of O. paradoxus. Morphometric measurements are compared with previous studies, revealing some intra-specific variability. The observed low hepato-, gonadosomatic, and ecophysiological indices suggest that the adult female had refrained from feeding for some time before collection. This individual-focused approach contributes significantly to the understanding of this poorly known species, especially considering its rarity. This study marks a noteworthy effort to enhance knowledge and emphasizes the importance of individual-based investigations when targeting rare species.eng
dc.identifier.doi10.5281/zenodo.16955940
dc.identifier.eissn2101-0315
dc.identifier.issn0399-0974
dc.identifier.urihttp://hdl.handle.net/10400.1/28599
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSociété Française d’Ichtyologie
dc.relationCondition and survival rates of the most frequently discarded deep-sea elasmobranchs from crustacean bottom trawl fisheries in the southern Portugal
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBycatch
dc.subjectSW Iberian
dc.subjectGonadosomatic index
dc.subjectHepatosomatic index
dc.subjectMorphometry
dc.subjectEcophysiological index
dc.titleNew insights on the ecology and biology of the rare shark species Oxynotus paradoxus from recent recordseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberSFRH/BD/147493/2019
oaire.awardNumberUIDB/04423/2020
oaire.awardNumberUIDB/04326/2020
oaire.awardNumberLA/P/0101/2020
oaire.awardTitleCondition and survival rates of the most frequently discarded deep-sea elasmobranchs from crustacean bottom trawl fisheries in the southern Portugal
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBD%2F147493%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04423%2F2020/PT
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.citation.endPage217
oaire.citation.startPage211
oaire.citation.titleCybium
oaire.citation.volume48
oaire.fundingStreamOE
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameGraça Aranha Carvalho Ramos
person.familyNamePires da Rocha
person.familyNameTeodosio
person.givenNameSofia
person.givenNamePedro
person.givenNameMaria
person.identifier.ciencia-idAA1C-EB0A-3F61
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.orcid0000-0002-3664-6896
person.identifier.orcid0000-0002-6558-2860
person.identifier.orcid0000-0002-0939-9885
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id56196396700
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.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
project.funder.nameFundação para a Ciência e a Tecnologia
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