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Source and impact of lead contamination on δ-aminolevulinic acid dehydratase activity in several marine bivalve species along the Gulf of Cadiz

2011Journal article Restricted access
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dc.contributor.authorCompany, Rui
dc.contributor.authorSerafim, M.A.
dc.contributor.authorLopes, Belisandra
dc.contributor.authorCravo, Alexandra
dc.contributor.authorKalman, J.
dc.contributor.authorRiba, I.
dc.contributor.authorDelValls, T. A.
dc.contributor.authorBlasco, J.
dc.contributor.authorDelgado, J.
dc.contributor.authorSarmiento, A . M.
dc.contributor.authorNieto, J. M.
dc.contributor.authorShepherd, T. J.
dc.contributor.authorNowell, G.
dc.contributor.authorBebianno, Maria João
dc.date.accessioned2020-04-29T12:13:50Z
dc.date.available2020-04-29T12:13:50Z
dc.date.issued2011
dc.description.abstractCoastal areas and estuaries are particularly sensitive to metal contamination from anthropogenic sources and in the last few decades the study of space-time distribution and variation of metals has been extensively researched. The Gulf of Cadiz is no exception, with several rivers draining one of the largest concentrations of sulphide deposits in the world, the Iberian Pyrite Belt (IPB). Of these rivers, the Guadiana, one of the most important in the Iberian Peninsula, together with smaller rivers like the Tinto and Odiel, delivers a very high metal load to the adjacent coastal areas. The purpose of this work was to study the source and impact of lead (Pb) drained from historical or active mining areas in the IPB on the activity of a Pb inhibited enzyme (δ-aminolevulinic acid dehydratase, ALAD) in several bivalve species along the Gulf of Cadiz. Seven marine species (Chamelea gallina, Mactra corallina, Donax trunculus, Cerastoderma edule, Mytilus galloprovincialis, Scrobicularia plana and Crassostrea angulata) were collected at 12 sites from Mazagón, near the mouth of the rivers Tinto and Odiel (Spain), to Cacela Velha (Ria Formosa lagoon system, Portugal). Lead concentrations, ALAD activity and lead isotope ratios ((206)Pb/(204)Pb, (207)Pb/(204)Pb and (208)Pb/(204)Pb) were determined in the whole soft tissues. The highest Pb concentrations were determined in S. plana (3.50±1.09 μg g(-1) Pb d.w.) and D. trunculus (1.95±0.10 μg g(-1) Pb d.w.), while M. galloprovincialis and C. angulata showed the lowest Pb levels (<0.38 μg g(-1) Pb d.w.). In general, ALAD activity is negatively correlated with total Pb concentration. However this relationship is species dependent (e.g. linear for C. gallina ALAD=-0.36[Pb]+0.79; r=0.837; or exponential for M. galloprovincialis ALAD=2.48e(-8.3[Pb]); r=0.911). This indicates that ALAD activity has considerable potential as a biomarker of Pb and moreover, in marine bivalve species with different feeding habits. Lead isotope data showed significant seasonal and spatial changes in bivalve isotopic composition reflecting seasonal and geographic differences in bioaccumulation. Within the study area, Pb can be modelled as a mixing between geogenic Pb and mine-related, discharges of Pb from the IPB. For some sites at the mouth of the Guadiana River, the bivalves show contamination from other anthropogenic sources, such as leaded boat/aviation fuel and/or leaded paint. Finally, the study demonstrates convincingly the need to consider species-specific variation when using bivalve ALAD activity as a biomarker for Pb.pt_PT
dc.description.sponsorshipEuropean Union (EU) - UTPIA/SP5.P9/02-INTERREG IIIApt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doihttps://doi.org/10.1016/j.aquatox.2010.09.012pt_PT
dc.identifier.issn0166-445X
dc.identifier.urihttp://hdl.handle.net/10400.1/13801
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0166445X10003796?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnimalspt_PT
dc.subjectBiomarkerspt_PT
dc.subjectBivalviapt_PT
dc.subjectEnvironmental Monitoringpt_PT
dc.subjectIsotopespt_PT
dc.subjectLeadpt_PT
dc.subjectPorphobilinogen Synthasept_PT
dc.subjectRiverspt_PT
dc.subjectSeawaterpt_PT
dc.subjectSpainpt_PT
dc.subjectSpecies Specificitypt_PT
dc.subjectLead isotopespt_PT
dc.subjectMiningpt_PT
dc.subjectALADpt_PT
dc.subjectBivalvespt_PT
dc.subjectContaminationpt_PT
dc.subjectGulf of Cadizpt_PT
dc.subjectIberiapt_PT
dc.titleSource and impact of lead contamination on δ-aminolevulinic acid dehydratase activity in several marine bivalve species along the Gulf of Cadizpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage154pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage146pt_PT
oaire.citation.titleAquatic Toxicologypt_PT
oaire.citation.volume101pt_PT
person.familyNamePereira Serafim
person.familyNameLopes
person.familyNameCravo
person.familyNameBebianno
person.givenNameMaria Angela
person.givenNameBelisandra
person.givenNameAlexandra
person.givenNameMaria
person.identifier.ciencia-id9C18-090A-5E3D
person.identifier.ciencia-id6A15-9C84-CA28
person.identifier.ciencia-id7419-EE20-8039
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.orcid0000-0002-1165-0645
person.identifier.orcid0000-0003-3565-4795
person.identifier.orcid0000-0002-2569-3929
person.identifier.orcid0000-0003-1492-8566
person.identifier.scopus-author-id23985890600
person.identifier.scopus-author-id7004152715
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication24b957b6-c584-447f-ad53-d6b6aa57d104
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relation.isAuthorOfPublication.latestForDiscovery2e00a26d-1dd3-4c22-a6bf-ac7943ae0d32

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