Metal accumulation kinetics by the estuarine macroalga, Fucus ceranoides
dc.contributor.author | Varma, R | |
dc.contributor.author | Turner, Andrew | |
dc.contributor.author | Brown, Murray | |
dc.contributor.author | Millward, GE | |
dc.date.accessioned | 2015-12-10T14:08:53Z | |
dc.date.available | 2015-12-10T14:08:53Z | |
dc.date.issued | 2013-08 | |
dc.identifier.issn | 0272-7714 | |
dc.identifier.issn | 1096-0015 | |
dc.identifier.uri | http://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.extent | 33-40 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier BV | |
dc.subject | Fucus ceranoides | |
dc.subject | trace metals | |
dc.subject | kinetics | |
dc.subject | accumulation | |
dc.subject | estuaries | |
dc.subject | salinity gradient | |
dc.title | Metal accumulation kinetics by the estuarine macroalga, Fucus ceranoides | |
dc.type | journal-article | |
dc.type | Journal Article | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000321414100004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.volume | 128 | |
plymouth.publication-status | Published | |
plymouth.journal | Estuarine, Coastal and Shelf Science | |
dc.identifier.doi | 10.1016/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 | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA06 Agriculture, Veterinary and Food Science | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/BEACh | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
dc.rights.embargodate | 2014-08-01 | |
dc.rights.embargodate | 2014-08-01 | |
dc.identifier.eissn | 1096-0015 | |
dc.rights.embargoperiod | 12 months | |
rioxxterms.versionofrecord | 10.1016/j.ecss.2013.05.014 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/under-embargo-all-rights-reserved | |
rioxxterms.type | Journal Article/Review |