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Higher mercury contamination is associated with shorter telomeres in a long-lived seabird – A direct effect or a consequence of among-individual variation in phenotypic quality?

2022Journal article Open access
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dc.contributor.authorBauch, Christina
dc.contributor.authorGatt, Marie C.
dc.contributor.authorVerhulst, Simon
dc.contributor.authorGranadeiro, José P.
dc.contributor.authorCatry, Paulo
dc.date.accessioned2022-07-21T18:29:51Z
dc.date.available2022-07-21T18:29:51Z
dc.date.issued2022
dc.description.abstractMercury is a heavy metal, which is pervasive and persistent in the marine environment. It bioaccumulates within organisms and biomagnifies in the marine food chain. Due to its high toxicity, mercury contamination is a major concern for wildlife and human health. Telomere length is a biomarker of aging and health, because it predicts survival, making it a potential tool to investigate sublethal effects of mercury contamination. However, the relationship between telomeres and mercury contamination is unclear. We measured feather mercury concentration in Cory's Shearwaters Calonectris borealis, long-lived seabirds and top predators, between 9 and 35 years of age and related it to telomere length in erythrocytes. Cory's Shearwaters with higher mercury concentrations had shorter telomeres and the effect was sex-dependent, reaching significance in males only. This may be explained by the fact that males have longer telomeres and higher and more variable mercury concentrations than females in this population. The mercury effect on telomere length was stronger on longer telomeres in the genome within individuals. We discuss the hypotheses that the negative correlation could either be a direct effect of mercury on telomere shortening and/or a consequence of variation in phenotypic quality among individuals that results in a covariation between mercury contamination and telomere length.pt_PT
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCTpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBauch, C., Gatt, M. C., Verhulst, S., Granadeiro, J. P., & Catry, P. (2022). Higher mercury contamination is associated with shorter telomeres in a long-lived seabird – A direct effect or a consequence of among-individual variation in phenotypic quality? Science of the Total Environment, 839.pt_PT
dc.identifier.doi10.1016/j.scitotenv.2022.156359pt_PT
dc.identifier.issn00489697
dc.identifier.urihttp://hdl.handle.net/10400.12/8743
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationLA/P/0094/2020pt_PT
dc.relationTrophic links in open oceans: combining spatial data, dietary information and biomarkers from top predators to unveil structure and functioning of subtropical pelagic ecosystems
dc.relationCauses and consequences of individual variation in migratory behaviour of Corys shearwaters
dc.relationCentre for Environmental and Marine Studies
dc.relationCentre for Environmental and Marine Studies
dc.relationMarine and Environmental Sciences Centre
dc.relationMarine and Environmental Sciences Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPollutionpt_PT
dc.subjectHealthpt_PT
dc.subjectShearwaterpt_PT
dc.subjectBiomarkerpt_PT
dc.subjectIndividual qualitypt_PT
dc.subjectTelomere restriction fragmentpt_PT
dc.titleHigher mercury contamination is associated with shorter telomeres in a long-lived seabird – A direct effect or a consequence of among-individual variation in phenotypic quality?pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTrophic links in open oceans: combining spatial data, dietary information and biomarkers from top predators to unveil structure and functioning of subtropical pelagic ecosystems
oaire.awardTitleCauses and consequences of individual variation in migratory behaviour of Corys shearwaters
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleCentre for Environmental and Marine Studies
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardTitleMarine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FBIA-ANM%2F3743%2F2014/PT
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oaire.citation.conferencePlaceNetherlandspt_PT
oaire.citation.startPage156359pt_PT
oaire.citation.titleScience of The Total Environmentpt_PT
oaire.citation.volume839pt_PT
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oaire.fundingStream6817 - DCRRNI ID
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person.familyNameBauch
person.familyNameGatt
person.familyNameVerhulst
person.familyNamePedro Granadeiro
person.familyNameCatry
person.givenNameChristina
person.givenNameMarie Claire
person.givenNameSimon
person.givenNameJosé
person.givenNamePaulo
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person.identifier.ridK-3329-2012
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person.identifier.scopus-author-id6603758245
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project.funder.identifierhttp://doi.org/10.13039/501100001871
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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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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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