Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/34782
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dc.contributor.authorNunes, Brunopt_PT
dc.contributor.authorSilva, Verapt_PT
dc.contributor.authorCampos, Isabelpt_PT
dc.contributor.authorPereira, Joana Luísapt_PT
dc.contributor.authorPereira, Patríciapt_PT
dc.contributor.authorKeizer, Jan Jacobpt_PT
dc.contributor.authorGonçalves, Fernandopt_PT
dc.contributor.authorAbrantes, Nelsonpt_PT
dc.date.accessioned2022-09-26T13:49:37Z-
dc.date.available2022-09-26T13:49:37Z-
dc.date.issued2017-03-01-
dc.identifier.issn0048-9697pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/34782-
dc.description.abstractThe number of wildfires has markedly increased in Mediterranean Europe, including in Portugal. Wildfires are environmentally concerning, not only due to the loss of biodiversity and forest area, but also as a consequence of environmental contamination by specific compounds including metals and polycyclic aromatic compounds (PAHs). These contaminants, mostly bound to ashes, can reach downstream water bodies, namely through surface runoff, being ultimately dispersed by vast areas and contacting with aquatic biota. Being toxicologically noteworthy, the potential toxic outcomes of the input of such chemicals across the aquatic compartment must be characterized. In this context, the present study used a biomarker-based approach to find early-warning signals of toxicity triggered by the exposure of the mosquitofish, Gambusia holbrooki, to affected aqueous runoff and stream water samples collected from a forest burnt area. The chemical analysis revealed concerning levels of metals and polycyclic aromatic hydrocarbons in both runoff and stream water samples. Biological responses elicited by the collected samples showed the occurrence of pro-oxidative modifications, specifically driven by enzymatic forms involved in the metabolism of glutathione. Despite these effects, no further signs of involvement of metals and PAHs were elicited in terms of neurotoxicity. The overall set of data implicates chemicals resulting from wildfires in clear deleterious effects in exposed fish.pt_PT
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAAG-GLO%2F4176%2F2012/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAMB%2F50017%2F2019/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/Investigador FCT/IF%2F01744%2F2013%2FCP1162%2FCT0004/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBD%2F62327%2F2009/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F101971%2F2014/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F69563%2F2010/PTpt_PT
dc.rightsrestrictedAccesspt_PT
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMetalspt_PT
dc.subjectMosquitofishpt_PT
dc.subjectOxidative stresspt_PT
dc.subjectPAHspt_PT
dc.subjectShort-term exposurept_PT
dc.subjectWildfirespt_PT
dc.titleOff-site impacts of wildfires on aquatic systems - Biomarker responses of the mosquitofish Gambusia holbrookipt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.firstPage305pt_PT
degois.publication.lastPage313pt_PT
degois.publication.titleScience of the Total Environmentpt_PT
degois.publication.volume581-582pt_PT
dc.identifier.doi10.1016/j.scitotenv.2016.12.129pt_PT
dc.identifier.essn1879-1026pt_PT
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DAO - Artigos
DBio - Artigos

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