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Metal contamination levels and biochemical stress responses in the catshark Scyliorhinus canicula off the Portuguese coast

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dc.contributor.authorMarques, Alexandre F.
dc.contributor.authorAlves, Luís M.
dc.contributor.authorLemos, Marco F.
dc.contributor.authorNovais, Sara C.
dc.date.accessioned2019-10-22T13:46:02Z
dc.date.available2019-10-22T13:46:02Z
dc.date.issued2018
dc.description.abstractMarine contamination is an ever-growing problem, with contaminants such as metals constantly being introduced in the ecosystems. To understand the effects these contaminants exert in marine organisms, there is a need to connect the measured contamination levels with biological endpoints that can give an indication of stress or susceptibility. Sharks tend to bioaccumulate and biomagnify different contaminants throughout their long lives, mainly by feeding on smaller animals containing different levels of such pollutants. Being very abundant and heavily fished, these animals have the potential to be used in marine biomonitoring studies. Moreover, the fact that they are used for human consumption ads further relevance to the study of their contamination levels. The present study aimed to assess the levels of metal contamination in the catshark Scyliorhinus canicula while also addressing stress effects using biochemical biomarkers to understand possible consequences of such contamination. The sharks were sampled right after being caught off the coast of Portugal, aboard a commercial trawling boat. Metals were quantified in different tissues and the levels of biochemical parameters related with detoxification, oxidative stress, and energy metabolism were measured for each individual. Some of the metals were preferentially accumulated in liver, when compared to muscle. Significant correlations were observed between physiological parameters and contaminant accumulation levels and some suitable biomarker candidates were identified. This study further highlights the effectiveness of combining biochemical parameters and pollutant body burden determinations to assess effects of contamination and demonstrates the great potential of sharks to be used in biomonitoring studies of the marine environment.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMarques AF, Alves LM, Lemos MF and Novais SC (2019). Metal contamination levels and biochemical stress responses in the catshark Scyliorhinus canicula of the Portuguese coast. Front. Mar. Sci. Conference Abstract: IMMR'18 | International Meeting on Marine Research 2018. doi: 10.3389/conf.FMARS.2018.06.00006pt_PT
dc.identifier.doi10.3389/conf.FMARS.2018.06.00006
dc.identifier.urihttp://hdl.handle.net/10400.8/4227
dc.language.isoengpt_PT
dc.peerreviewednopt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectBiomarkerspt_PT
dc.subjectBiomonitoringpt_PT
dc.subjectMarine pollutantspt_PT
dc.subjectMetalspt_PT
dc.subjectSharkspt_PT
dc.titleMetal contamination levels and biochemical stress responses in the catshark Scyliorhinus canicula off the Portuguese coastpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlacePeniche, Portugalpt_PT
oaire.citation.titleIMMR'18 | International Meeting on Marine Research 2018, Peniche, Portugal, 5 Jul - 6 Jul, 2018pt_PT
oaire.citation.volume5pt_PT
person.familyNameAlves
person.familyNameLemos
person.familyNameNovais
person.givenNameLuís
person.givenNameMarco
person.givenNameSara
person.identifier996337
person.identifier.ciencia-idB615-BAFB-B8ED
person.identifier.ciencia-id2216-A2E0-A118
person.identifier.orcid0000-0001-5106-7430
person.identifier.orcid0000-0001-9887-1864
person.identifier.orcid0000-0003-1306-3396
person.identifier.ridF-7951-2011
person.identifier.ridA-9032-2012
person.identifier.scopus-author-id7006042884
person.identifier.scopus-author-id23025463300
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublicationd351dee7-709b-498b-80ca-5f2367ad6eab
relation.isAuthorOfPublicationf21e5540-df76-43e9-ad64-93edd70da1f1
relation.isAuthorOfPublicationde69a91d-24ba-4155-ad23-76367cca2232
relation.isAuthorOfPublication.latestForDiscoveryd351dee7-709b-498b-80ca-5f2367ad6eab

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