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Estimation of mercury background values in sediment and biota of the Bijagós archipelago, Guinea-Bissau

2016-06-16Journal article Restricted access
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dc.contributor.authorCoelho, J. P.
dc.contributor.authorMonteiro, R. J. R.
dc.contributor.authorCatry, Teresa
dc.contributor.authorLourenço, Pedro Miguel
dc.contributor.authorCatry, Paulo
dc.contributor.authorRegalla, Aissa Said
dc.contributor.authorCatry, Inês
dc.contributor.authorFigueira, Paula
dc.contributor.authorPereira, Eduarda
dc.contributor.authorVale, Carlos
dc.contributor.authorGranadeiro, José Pedro
dc.date.accessioned2016-06-29T19:53:59Z
dc.date.available2016-06-29T19:53:59Z
dc.date.issued2016-06-16
dc.description.abstractThis work evaluates the mercury (Hg) contamination status (sediments and biota) of the Bijagós archipelago, off the coast of Guinea-Bissau. Sediments exhibited very low concentrations (<1-12ngg(-1)), pointing to negligible sources of anthropogenic Hg in the region. Nevertheless, Hg is well correlated to the fine fraction, aluminium, and loss on ignition, indicating the effect of grain size and organic matter content on the presence of Hg in sediments. Mercury in the bivalves Tagelus adansoni and Senilia senilis did not vary considerably among sites, ranging within narrow intervals (0.09-0.12 and 0.12-0.14μgg(-1) (dry weight), respectively). Divergent substrate preferences/feeding tactics may justify slight differences between species. The value 11ngg(-1) is proposed as the sediment background concentration for this West-African coastal region, and concentrations within the interval 8-10ngg(-1) (wet weight) may be considered as reference range for S. senilis and T. adansoni in future monitoring studies.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT); MAVA Foundationpt_PT
dc.identifier.citationMarine Pollution Bulletin. doi:10.1016/j.marpolbul.2016.06.053pt_PT
dc.identifier.doi10.1016/j.marpolbul.2016.06.053pt_PT
dc.identifier.issn0025-326X
dc.identifier.urihttp://hdl.handle.net/10400.12/4758
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCombined human exposure to fish and seafood contaminant mixtures: bio-accessibility, assimilation efficiency and toxicity
dc.relationAssessing migratory connectivity and the role of shorebirds in the functioning and structuring of tropical and temperate coastal ecosystems
dc.relationMechanisms and consequences of changes in migratory behaviour in response to global environmental change
dc.subjectMercurypt_PT
dc.subjectSedimentspt_PT
dc.subjectBivalvespt_PT
dc.subjectBackground concentrationspt_PT
dc.subjectWest Africapt_PT
dc.titleEstimation of mercury background values in sediment and biota of the Bijagós archipelago, Guinea-Bissaupt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCombined human exposure to fish and seafood contaminant mixtures: bio-accessibility, assimilation efficiency and toxicity
oaire.awardTitleAssessing migratory connectivity and the role of shorebirds in the functioning and structuring of tropical and temperate coastal ecosystems
oaire.awardTitleMechanisms and consequences of changes in migratory behaviour in response to global environmental change
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMulti%2F04423%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FAMB%2F50017%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F04292%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F102870%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F102255%2F2014/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F84237%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F102637%2F2014/PT
oaire.citation.endPage5pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMarine pollution bulletinpt_PT
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStream5876
oaire.fundingStreamFARH
oaire.fundingStreamSFRH
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.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
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.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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