Bioaccumulation of chlorinated pesticides and PCBs in the tropical freshwater fish Hoplias malabaricus: Histopathological, physiological, and immunological findings

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dc.contributor.authorMiranda, A. L.
dc.contributor.authorRoche, H.
dc.contributor.authorRandi, M. A. F.
dc.contributor.authorMenezes, Manoel Lima de [UNESP]
dc.contributor.authorRibeiro, C. A. Oliveira
dc.contributor.institutionUniversidade Federal do Paraná (UFPR)
dc.contributor.institutionUniv Paris 11
dc.contributor.institutionAgroParisTech
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCNRS
dc.date.accessioned2014-05-20T13:26:55Z
dc.date.available2014-05-20T13:26:55Z
dc.date.issued2008-10-01
dc.description.abstractFor assessing the impact of chlorinated compounds, such as organochlorine pesticides, polychlorinated biphenyls, chlorotriazines (atrazine, simazine), and chlorinated phenylureas (diuron), on the Ponta Grossa lake South of Brazil, ten freshwater trahira fish (Hoplias malabaricus) were collected in October 2005. The contamination status was evaluated by the energy budget and various histopathological markers. The results showed detectable amounts of persistent organic pollutants (POPs) in the liver and muscle; the bioaccumulation was higher in the liver than in the muscle. The presence of some banned pesticides, such as hexachlorobenzene and dichlorodiphenyltrichloroethane, in the liver suggests an acute exposure to these compounds. Some physiological disturbances and morphological damages found in the liver of H. malabaricus were associated with chlorinated-compound bioaccumulation. The most important alterations in the liver were lesions such as fibrosis, large necrosis area, leukocyte infiltration, and the absence of melanomacrophages (MM). Individuals containing higher concentrations of pesticides, such as aldrin, alachlor, and dichloroaniline (a metabolite of diuron), showed the nonoccurrence of MM in the liver. These data suggest an immunosuppression in the individuals from Ponta Grossa Lake after exposure to POPs. According to the present data, the POPs found in the studied site are bioavailable, induce severe damages in target organs such as the liver, and can disturb the immune system of the trahira. This is the first study of POPs in the Parana state, and one among the few studies in the south of Brazil. The present data suggest and motivate further chemical and biomonitoring studies in freshwater ecosystems in the south of Brazil. (C) 2008 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniversidade Federal do Paraná (UFPR), Dept Biol Celular, BR-81531990 Curitiba, PR, Brazil
dc.description.affiliationUniv Paris 11, Lab Ecol Systemat & Evolut, UMR8079, F-91405 Orsay, France
dc.description.affiliationAgroParisTech, F-75231 Paris, France
dc.description.affiliationUniv Estadual Paulista, Dept Quim, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationCNRS, F-91405 Orsay, France
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim, BR-17033360 Bauru, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCentre national de la recherche scientifique (CNRS)
dc.format.extent939-949
dc.identifierhttp://dx.doi.org/10.1016/j.envint.2008.02.004
dc.identifier.citationEnvironment International. Oxford: Pergamon-Elsevier B.V. Ltd, v. 34, n. 7, p. 939-949, 2008.
dc.identifier.doi10.1016/j.envint.2008.02.004
dc.identifier.issn0160-4120
dc.identifier.lattes4659698040759224
dc.identifier.urihttp://hdl.handle.net/11449/8753
dc.identifier.wosWOS:000259731500004
dc.language.isoeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relation.ispartofEnvironment International
dc.relation.ispartofjcr7.297
dc.relation.ispartofsjr2,568
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectPOPsen
dc.subjectbiomonitoringen
dc.subjectbiomarkersen
dc.subjectHoplias malabaricusen
dc.subjectfreshwater ecosystemen
dc.titleBioaccumulation of chlorinated pesticides and PCBs in the tropical freshwater fish Hoplias malabaricus: Histopathological, physiological, and immunological findingsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderPergamon-Elsevier B.V. Ltd
unesp.author.lattes4659698040759224
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentQuímica - FCpt

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