Cadmium bioaccumulation and retention kinetics in the Chilean blue mussel Mytilus chilensis: Seawater and food exposure pathways

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dc.contributor.author Herve-Fernandez, Pedro en_US
dc.contributor.author Houlbreque, Fanny en_US
dc.contributor.author Boisson, Florence en_US
dc.contributor.author Mulsow, Sandor en_US
dc.contributor.author Teyssie, Jean-Louis en_US
dc.contributor.author Oberhaensli, Francois en_US
dc.contributor.author Azemard, Sabine en_US
dc.contributor.author Jeffree, Ross en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-02-02T08:03:32Z
dc.date.available 2012-02-02T08:03:32Z
dc.date.issued 2010 en_US
dc.identifier 2010003941 en_US
dc.identifier.citation Herve-Fernandez Pedro et al. 2010, 'Cadmium bioaccumulation and retention kinetics in the Chilean blue mussel Mytilus chilensis: Seawater and food exposure pathways', Elsevier Inc, vol. 99, no. 4, pp. 448-456. en_US
dc.identifier.issn 0166-445X en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/14952
dc.description.abstract The Chilean blue mussel (Mytilus chilensis, Hupe 1854) represents the most important bivalve exploited along the Chilean coast and is a major food source for the Chilean population. Unfortunately, local fish and shellfish farming face severe problems as a result of bioaccumulation of toxic trace metals into shellfishes. Blue mussels collected along the Chilean coasts contain levels of Cd above the regulatory limits for human consumption. In this study, we examined the bioaccumulation, depuration and organ distribution of Cd in the M. chilensis, from 109Cd-labelled bulk seawater and from feeding with 109Cd-labelled algae. The uptake of 109Cd via seawater displayed a simple exponential kinetic model suggesting that cadmium activity tends to reach an equilibrium value of 1.838 ? 0.175 ng g-1 (mean ? asymptotic standard error, p < 0.001) after 78 ? 9 days. The depuration rate for 109Cd accumulated via seawater was slow, with only 21% of the total 109Cd accumulated in the whole mussel being eliminated after 52 days. Total elimination of Cd in mussels was adequately described by a double component kinetic model, in which the biological half-life for the long-lived component represents more than 6 months. In contrast, depuration after radiolabelled food uptake was fast, reaching only 20% of retention in 10 days. This knowledge of the long half-life of cadmium accumulated via seawater as well as the non-negligible level of cadmium accumulated into the shells is relevant to the management of Cd levels in this species and the refinement of detoxification processes in order to comply with authorized Cd levels. en_US
dc.language en_US
dc.publisher Elsevier Inc en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/j.aquatox.2010.06.004 en_US
dc.title Cadmium bioaccumulation and retention kinetics in the Chilean blue mussel Mytilus chilensis: Seawater and food exposure pathways en_US
dc.parent Aquatic Toxicology en_US
dc.journal.volume 99 en_US
dc.journal.number 4 en_US
dc.publocation Amsterdam, Netherlands en_US
dc.identifier.startpage 448 en_US
dc.identifier.endpage 456 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060100 en_US
dc.personcode 0000068969 en_US
dc.personcode 0000068968 en_US
dc.personcode 0000068971 en_US
dc.personcode 0000069115 en_US
dc.personcode 0000066581 en_US
dc.personcode 0000069112 en_US
dc.personcode 0000069117 en_US
dc.personcode 110409 en_US
dc.percentage 100 en_US
dc.classification.name Biochemistry and Cell Biology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Cadmium; Mytilus chilensis; Mussel; Bioaccumulation kinetics; Depuration kinetics; Radiotracers en_US
dc.staffid 110409 en_US


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