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Integrative indices for health assessment in reef corals under thermal stress

2020-06Artigo científico Acesso aberto
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dc.contributor.authorDias, Marta
dc.contributor.authorMadeira, Carolina
dc.contributor.authorJogee, Nadia
dc.contributor.authorFerreira, Ana
dc.contributor.authorGouveia, Raúl
dc.contributor.authorCabral, Henrique
dc.contributor.authorDiniz, Mário
dc.contributor.authorVinagre, Catarina
dc.contributor.institutionUCIBIO - Applied Molecular Biosciences Unit
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.pblElsevier
dc.date.accessioned2021-05-03T22:55:50Z
dc.date.available2021-05-03T22:55:50Z
dc.date.issued2020-06
dc.descriptionUID/MAR/04292/2019 UID/Multi/04378/2019 SFRH/BD/103047/2014
dc.description.abstractGlobal warming is one of the major causes of reef coral ecosystems’ degradation. Predictions of further rise in sea surface temperatures call for urgent action. In this study, a holistic method for bio-monitoring heat stress in reef ecosystems was tested and optimized. Long-term induction of antioxidant enzymes and oxidative stress by elevated temperatures (30 °C and 32 °C) was assessed on fragments of reef-building corals and compared to control conditions (26 °C). The quantification of both oxidative stress, through lipid peroxidation (LPO) levels, and antioxidant enzyme activities: superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) in a long-term experiment (60 days), using seven Indo-Pacific reef-building coral species, provided useful information that was interpreted in combination with the observed partial mortality and growth rate of these organisms. These biomarkers were combined in integrated biomarker response (IBR) indices, either in an antioxidant defense mechanisms and oxidative stress response category (approach A: GST, CAT, LPO, and SOD) or in an integrated stress response category – organism performance (approach B: GST, CAT, LPO, SOD, partial mortality, and growth rate). The results of this study indicate that the IBRs were responsive to temperature treatment and dependent on the coral species. The approach B was the most adequate since it better reflected the stress suffered by the tested species, whereas the set of four biochemical biomarkers (approach A) was not enough to explain the organismal response of most of the tested species to thermal stress conditions.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent1994113
dc.identifier.doi10.1016/j.ecolind.2020.106230
dc.identifier.issn1470-160X
dc.identifier.otherPURE: 29518511
dc.identifier.otherPURE UUID: d37dc7c5-2777-4fd9-8cd0-86fe8675e7bb
dc.identifier.otherScopus: 85081158081
dc.identifier.otherWOS: 000523335900057
dc.identifier.urihttp://hdl.handle.net/10362/116906
dc.identifier.urlhttps://www.scopus.com/pages/publications/85081158081
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/127742/PT
dc.subjectBiochemical biomarkers
dc.subjectCoral performance
dc.subjectEnvironment health assessment
dc.subjectGlobal climate change
dc.subjectIntegrated Biomarker Response
dc.subjectOcean warming
dc.subjectGeneral Decision Sciences
dc.subjectEcology, Evolution, Behavior and Systematics
dc.subjectEcology
dc.subjectSDG 13 - Climate Action
dc.titleIntegrative indices for health assessment in reef corals under thermal stressen
dc.typejournal article
degois.publication.titleEcological Indicators
degois.publication.volume113
dspace.entity.typePublication
oaire.awardNumberPTDC/MAR-EST/2141/2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR-EST%2F2141%2F2012/PT
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublicationa2bf64ff-2176-49c8-8f7d-f5154d271fb8
relation.isProjectOfPublication.latestForDiscoverya2bf64ff-2176-49c8-8f7d-f5154d271fb8

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