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Bioaccumulation of metals in the soft tissue of Patella aspera: application of metal/shell weight indices

2005Journal article Restricted access
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dc.contributor.authorCravo, Alexandra
dc.contributor.authorBebianno, Maria João
dc.date.accessioned2020-05-11T13:42:02Z
dc.date.available2020-05-11T13:42:02Z
dc.date.issued2005
dc.description.abstractPatella aspera limpets were taken from a marine clean site (MCS) and an estuarine contaminated site (ECS). The concentrations of Fe, Mn, Zn, Cu, Cd, Ni and Co were determined individually over the available size range. Since there were significant differences in the soft tissue weight between populations, but shell characteristics were similar (length and weight), metal/shell weight indices (MSI) were calculated in order to compare populations. For both populations iron, zinc and manganese/shell weight indices were consistently higher, in the order Fe[Zn[Mn than those of Cu, Ni, Co and Cd. The results exhibited a marked intra- and interpopulation variability. The highest intra-variability was observed at ECS, particularly where a strong effect of shell weight upon the metal accumulation in the soft tissue was evident. Due to this effect, the comparison of populations was carried out between three selected shell weight ranges representative of light shells (0.45e1.95 g), intermediate shells (2.95e4.45 g) and heavy shells (5.45e 7.33 g). The results indicate that, in general, MSI at ECS (a sewage contaminated site), except for Cd, was higher than at MCS possibly reflecting a higher environmental bioavailability of these metals. The resolution between populations was higher when the smallest range of limpets was considered and it decreased with the increase of shell weight. The highest discrimination amongst populations was found for zinc/shell weight index that showed much higher values than those of Mn, Cu, Cd, Ni and Co/shell weight indices, and spatial differentiation between populations persisted amongst the selected shell weight ranges.pt_PT
dc.description.sponsorshipFCT - FRMH/BD/403/92pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.ecss.2005.06.026pt_PT
dc.identifier.issn0272-7714
dc.identifier.urihttp://hdl.handle.net/10400.1/13871
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectMetalspt_PT
dc.subjectSoft tissuept_PT
dc.subjectBioaccumulationpt_PT
dc.subjectMetal/shell weight indicespt_PT
dc.subjectPatella asperapt_PT
dc.subjectPortugalpt_PT
dc.titleBioaccumulation of metals in the soft tissue of Patella aspera: application of metal/shell weight indicespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage586pt_PT
oaire.citation.issue3pt_PT
oaire.citation.startPage571pt_PT
oaire.citation.titleEstuarine, Coastal and Shelf Sciencept_PT
oaire.citation.volume65pt_PT
person.familyNameCravo
person.familyNameBebianno
person.givenNameAlexandra
person.givenNameMaria
person.identifier.ciencia-id7419-EE20-8039
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.orcid0000-0002-2569-3929
person.identifier.orcid0000-0003-1492-8566
person.identifier.scopus-author-id7004152715
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationf19c20c8-9654-43db-841b-2c6f14979df5
relation.isAuthorOfPublication2e00a26d-1dd3-4c22-a6bf-ac7943ae0d32
relation.isAuthorOfPublication.latestForDiscoveryf19c20c8-9654-43db-841b-2c6f14979df5

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