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dc.contributor.authorCASTRO, M. P.pt_BR
dc.contributor.authorMORAES, F. R. dept_BR
dc.contributor.authorFUJIMOTO, R. Y.pt_BR
dc.contributor.authorCRUZ, C. dapt_BR
dc.contributor.authorBELO, M. A. de A.pt_BR
dc.contributor.authorMORAES, J. R. E. dept_BR
dc.date.accessioned2014-12-10T11:11:11Zpt_BR
dc.date.available2014-12-10T11:11:11Zpt_BR
dc.date.created2014-12-10pt_BR
dc.date.issued2014pt_BR
dc.identifier.citationBulletin of Environmental Contamination and Toxicology, California, v. 92, p. 213-219, 2014.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1002178pt_BR
dc.descriptionThis study evaluated the toxicity of hexavalent and trivalent compounds of chromium to the pacu, Piaractus mesopotamicus, in acute exposures of 96 h through mortality and histopathological responses. Hexavalent otassium dichromate was more toxic than trivalent compounds of chromium chloride, chromium oxide and chromium carbochelate. Sufficient mortalities occurred only with potassium dichromate to yield an LC50 value at 124.2 mg L-1. Hexavalent chromium caused reversible and irreversible lesions, which may affect organ functionality. Histopathological evaluation showed that trivalent chromium caused lesions of lower severity. Pacu subjected to different concentrations of chromium carbochelate showed no histopathological changes in the kidneys, liver, skin and gills, being similar to those of the control fish. Among the three sources of Cr3?, only chromium chloride at 200 mg L-1 resulted in mortality, which reached 100 % within the first 18 h. These findings confirm that trivalent chromium, when administered within recommended levels, may be used safely in aquaculture.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleAcute Toxicity by Water Containing Hexavalent or Trivalent Chromium in Native Brazilian Fish, Piaractus mesopotamicus: Anatomopathological Alterations and Mortality.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2014-12-10T11:11:11Zpt_BR
dc.subject.nalthesaurusPiaractus mesopotamicuspt_BR
dc.subject.nalthesauruschromiumpt_BR
dc.subject.nalthesaurushistopathologypt_BR
dc.subject.nalthesaurustoxicitypt_BR
riaa.ainfo.id1002178pt_BR
riaa.ainfo.lastupdate2014-12-10pt_BR
dc.identifier.doi10.1007/s00128-013-1174-5pt_BR
dc.contributor.institutionRODRIGO YUDI FUJIMOTO, CPATC.pt_BR
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