Repository logo
 
Publication

Mercury levels in commercial mid-trophic level fishes along the Portuguese coast: Relationships with trophic niche and oxidative damage

2020Journal article Restricted access
Simple item page
dc.contributor.authorSilva, Joana M. da
dc.contributor.authorAlves, Luís M.
dc.contributor.authorLaranjeiro, Maria I.
dc.contributor.authorAngélico, Maria M.
dc.contributor.authorNorte, Ana C.
dc.contributor.authorLemos, Marco F.L.
dc.contributor.authorRamos, Jaime A.
dc.contributor.authorNovais, Sara C.
dc.contributor.authorCeia, Filipa R.
dc.date.accessioned2021-08-20T13:40:30Z
dc.date.available2021-08-20T13:40:30Z
dc.date.issued2020
dc.descriptionFunding source : FRC, LMFA, ACN and SCN acknowledge their grants (SFRH/BPD/95372/2013, SFRH/BD/122082/2016, SFRH/BPD/108197/2015 and SFRH/BPD/94500/2013, respectively) attributed by the Foundation for Science and Technology (FCT; Portugal) and the European Social Fund (POPH, EU). This study benefited from the strategic program of MARE, financed by FCT (MARE – UID/MAR/04292/2020) and financial support provided by FCT and MARE through the project ECOLIND – Seabirds and fish as ecological indicators of contaminants and health in the North Atlantic relevant to ocean resources assessment (MFM/2017/0003). The project was also partly funded by the Integrated Programme of SR&TD “SmartBioR” (reference Centro-01-0145-FEDER-000018) cofounded by Centro 2020 program, Portugal2020, European Union, through the European Regional Development Fund. The funding source had no involvement in this study.
dc.description.abstractSardines (Sardina pilchardus) and mackerels (Scomber spp. and Trachurus spp.) are amongst the most common fish caught along the Iberian coast for human consumption and, as mid-trophic level organisms, they constitute essential prey in the diet of several marine predators. Thus, the assessment of trophic ecology, contamination exposure, and stress responses in such organisms provides valuable information on the environmental health in the mid-trophic chain and the potential risks for consumers. This study aims to contribute for an integrative mercury assessment of the marine ecosystem by measuring stable isotopes, mercury levels, and oxidative stress parameters in five commercial fish species in the northeast Atlantic. Samples of muscle and liver were collected from a total of 116 individuals in two fisheries assessment surveys (Spring and Autumn) along the whole Portuguese coast. Mercury concentrations and stable isotope analysis (δ13C and δ15N) were performed in the muscle, while oxidative stress parameters (lipid peroxidation and DNA damage) were measured in both muscle and liver. Mercury concentrations were found to be considerably lower than values recorded in previous studies and the limits set by the European Union law, which confirms the non-toxic status of these species along the Portuguese coast, concerning this harmful element. Interestingly, no differences were found among the three genera, despite clear differences in trophic niches. Still, mercury concentrations were significantly higher during Autumn than Spring, possibly due to upwelling events during the Summer. Moreover, no relationships between the mercury concentrations and oxidative stress parameters were found. Overall, this work provided an integrative mercury assessment of commercial fishes from the mid-trophic chain, particularly from pelagic (and neritic) regions in the northeast Atlantic, showing that mercury concentration in these species is low. However, it is important to note that this study focused on small- and medium-sized specimens (overall ranging from 13–25 cm in length), and thus higher concentrations of mercury may be present in larger fish due to bioaccumulation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationJoana M. da Silva, Luís M.F. Alves, Maria I. Laranjeiro, Andreia Silva, Maria M. Angélico, Ana C. Norte, Marco F.L. Lemos, Jaime A. Ramos, Sara C. Novais, Filipe R. Ceia, Mercury levels in commercial mid-trophic level fishes along the Portuguese coast – Relationships with trophic niche and oxidative damage, Ecological Indicators, Volume 116, 2020, 106500, ISSN 1470-160X, https://doi.org/10.1016/j.ecolind.2020.106500.pt_PT
dc.identifier.doi10.1016/j.ecolind.2020.106500pt_PT
dc.identifier.issn1470-160X
dc.identifier.urihttp://hdl.handle.net/10400.8/6122
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUID/MAR/04292/2020pt_PT
dc.relationTracing marine wildlife movement patterns in the North Atlantic environment: an isotopic approach
dc.relationBiomonitoring Atlantic deepwaters through the assessment of biomarkers in sharks
dc.relationBorrelia burgdorferi s.l. interactions with vertebrate hosts and vectors – key factors affecting Borrelia maintenance in nature
dc.relationENVIRONOME - INTEGRATING OMICS IN ECOTOXICOLOGY: TOOLS FOR ENVIRONMENTAL RISK ASSESSMENT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S1470160X20304374pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectBiomarkerspt_PT
dc.subjectStable isotopespt_PT
dc.subjectStress responsespt_PT
dc.subjectSardina pilcharduspt_PT
dc.subjectScomber spp.pt_PT
dc.subjectTrachurus spp.pt_PT
dc.titleMercury levels in commercial mid-trophic level fishes along the Portuguese coast: Relationships with trophic niche and oxidative damagept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTracing marine wildlife movement patterns in the North Atlantic environment: an isotopic approach
oaire.awardTitleBiomonitoring Atlantic deepwaters through the assessment of biomarkers in sharks
oaire.awardTitleBorrelia burgdorferi s.l. interactions with vertebrate hosts and vectors – key factors affecting Borrelia maintenance in nature
oaire.awardTitleENVIRONOME - INTEGRATING OMICS IN ECOTOXICOLOGY: TOOLS FOR ENVIRONMENTAL RISK ASSESSMENT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F95372%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/SFRH%2FBD%2F122082%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F108197%2F2015/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F94500%2F2013/PT
oaire.citation.titleEcological Indicatorspt_PT
oaire.citation.volume116pt_PT
oaire.fundingStreamPOR_CENTRO
oaire.fundingStreamOE
oaire.fundingStreamFARH
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
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
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_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
relation.isProjectOfPublicationab4e6389-ea4e-4cb3-b25c-f0f9fe095f27
relation.isProjectOfPublication3e4af7ce-1cf5-47df-93b3-28f14a52598e
relation.isProjectOfPublication2e91aadc-c75d-4950-bbd6-5fca76544e5e
relation.isProjectOfPublication4f84bfd4-842e-4f1e-8fe6-55bc16089f83
relation.isProjectOfPublication.latestForDiscovery4f84bfd4-842e-4f1e-8fe6-55bc16089f83

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Silva et al_2020_Ecological Indicators.pdf
Size:
1.13 MB
Format:
Adobe Portable Document Format
Description:
Download

Collections

MARE - Artigos com peer review