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dc.contributor.authorVarma, R
dc.contributor.authorTurner, Andrew
dc.contributor.authorBrown, Murray
dc.contributor.authorMillward, GE
dc.date.accessioned2015-12-10T14:08:53Z
dc.date.available2015-12-10T14:08:53Z
dc.date.issued2013-08
dc.identifier.issn0272-7714
dc.identifier.issn1096-0015
dc.identifier.urihttp://hdl.handle.net/10026.1/3922
dc.description.abstract

The kinetics of Cu, Cd and Pb accumulation by the macroalga, Fucus ceranoides, was studied under simulated estuarine conditions. Accumulation of Cu and Pb proceeded via a pseudo-first-order reaction that was reversible, suggesting desorption or efflux of accumulated metal, with forward rate constants on the order of 0.1h-1. For both metals, reaction reversibility increased and the equilibrium constant decreased with increasing salinity (from 1 to 33.5) and system response times were <10h throughout. Accumulation of Cd proceeded via a first-order reaction that was irreversible, suggesting little desorption or efflux of metal, with rate constants that decreased with increasing salinity (from 0.023 to 0.015h-1) and reaction half-lives ranging from approximately 30-50h. Inorganic equilibrium speciation calculations suggest that interactions of Cu, Cd and Pb principally involve the respective free ions, but that additional ions (e.g. CdCl+) and biotic processes may also be significant. •Accumulation of Cu, Cd and Pb by the estuarine macroalga, Fucus ceranoides, decreases along a salinity gradient.•Accumulation of Cu and Pb proceeds via a reversible pseudo-first-order reaction.•In contrast, accumulation of Cd proceeds via an irreversible first-order reaction.•Differences in reaction mechanisms are attributed to differences in the ability of metals to be internalised. © 2013 Elsevier Ltd.

dc.format.extent33-40
dc.languageen
dc.language.isoen
dc.publisherElsevier BV
dc.subjectFucus ceranoides
dc.subjecttrace metals
dc.subjectkinetics
dc.subjectaccumulation
dc.subjectestuaries
dc.subjectsalinity gradient
dc.titleMetal accumulation kinetics by the estuarine macroalga, Fucus ceranoides
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000321414100004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.volume128
plymouth.publication-statusPublished
plymouth.journalEstuarine, Coastal and Shelf Science
dc.identifier.doi10.1016/j.ecss.2013.05.014
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences
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plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science
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plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
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dc.rights.embargodate2014-08-01
dc.rights.embargodate2014-08-01
dc.identifier.eissn1096-0015
dc.rights.embargoperiod12 months
rioxxterms.versionofrecord10.1016/j.ecss.2013.05.014
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/under-embargo-all-rights-reserved
rioxxterms.typeJournal Article/Review


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