Bioaccumulation kinetics of copper in Ruditapes philippinarum exposed to increasing, continuous and pulsed exposure: Implications for growth

dc.contributor.authorSantana, Lígia M.B.M.
dc.contributor.authorBlasco, Julián
dc.contributor.authorAbessa, Denis M.S. [UNESP]
dc.contributor.authorCampana, Olivia
dc.contributor.institutionUniversidade Federal do Ceará (UFC)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:11:19Z
dc.date.available2018-12-11T17:11:19Z
dc.date.issued2017-10-01
dc.description.abstractMetal bioaccumulation and toxicity to aquatic organisms depends on factors such as magnitude, duration and frequency of the exposure. The type of the exposure affects the toxicokinetic processes in the organisms. In this study, we carried out 30-day toxicity tests on juveniles of Ruditapes philippinarum exposed to increasing, continuous and pulsed exposure. Organisms were exposed to copper-spiked sediments followed by a 10-day recovery period. We assessed the interaction between the kinetics of subcellular copper partitioning and the growth response. Results showed that the growth rate of the bivalve was inversely correlated to the bioaccumulation rate and that sublethal copper concentrations stimulated the detoxification mechanisms inside the organism regardless the type of the exposure. However, a large stimulatory effect on growth was observed during the recovery period, associated with significant negative accumulation rate values and dependent on the type of antecedent exposure. This suggested that on individual and short-term basis pulsed exposures have a more adverse effect compared to increasing or continuous exposure scenarios.en
dc.description.affiliationLaboratório de Ecotoxicologia Marinha Instituto de Ciências do Mar (LABOMAR) Universidade Federal do Ceará (UFC), Av. da Abolição, 3207, Meireles
dc.description.affiliationDepartamento de Ecología y Gestión Costera - Instituto de Ciencias Marinas de Andalucía (CSIC), Campus Rio San Pedro, Cadiz
dc.description.affiliationNúcleo de Estudos em Poluição e Ecotoxicologia Aquática (NEPEA) Campus Experimental do Litoral Paulista (UNESP), Praça Infante Dom Henrique s/n, Parque Bitaru
dc.description.affiliationUnespNúcleo de Estudos em Poluição e Ecotoxicologia Aquática (NEPEA) Campus Experimental do Litoral Paulista (UNESP), Praça Infante Dom Henrique s/n, Parque Bitaru
dc.format.extent920-927
dc.identifierhttp://dx.doi.org/10.1016/j.scitotenv.2017.03.020
dc.identifier.citationScience of the Total Environment, v. 595, p. 920-927.
dc.identifier.doi10.1016/j.scitotenv.2017.03.020
dc.identifier.file2-s2.0-85017635651.pdf
dc.identifier.issn1879-1026
dc.identifier.issn0048-9697
dc.identifier.scopus2-s2.0-85017635651
dc.identifier.urihttp://hdl.handle.net/11449/174481
dc.language.isoeng
dc.relation.ispartofScience of the Total Environment
dc.relation.ispartofsjr1,546
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBioaccumulation kinetics
dc.subjectCopper
dc.subjectGrowth
dc.subjectRuditapes philippinarum
dc.subjectSediment
dc.titleBioaccumulation kinetics of copper in Ruditapes philippinarum exposed to increasing, continuous and pulsed exposure: Implications for growthen
dc.typeArtigo

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