Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae

Detalhes bibliográficos
Autor(a) principal: Kersanach, M. Wallner
Data de Publicação: 2000
Outros Autores: Theede, H., Eversberg, U., Lobo, S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7913
Resumo: Texto completo: acesso restrito. p.40-45
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spelling Kersanach, M. WallnerTheede, H.Eversberg, U.Lobo, S.Kersanach, M. WallnerTheede, H.Eversberg, U.Lobo, S.2013-01-16T14:50:57Z20000090-4341http://www.repositorio.ufba.br/ri/handle/ri/7913v. 38, n. 1Texto completo: acesso restrito. p.40-45Oysters, Crassostrea rhizophorae, were reciprocally transplanted to two different sites: a contaminated site in the Cotegipe Channel at Aratu Bay and an uncontaminated site at Cacha-Prego, inside and outside of Todos os Santos Bay (Brazil), respectively. Trace metal accumulation was measured after 0, 15, 30, and 60 days of exposure at the contaminated site. Oysters transplanted for 60 days from the clean to the contaminated site had accumulated cadmium and lead to similar concentrations as found in the native oysters. They had also accumulated copper and zinc, but to lower levels compared to native specimens. Elimination experiments were carried out by transplanting oysters in the reverse direction. After 30 days, concentrations of cadmium and lead had decreased to levels comparable to those in the native specimen, whereas concentrations of copper and zinc did not diminish. A second elimination experiment, bringing back to Cacha-Prego oysters that had been exposed 60 days at Cotegipe Channel, indicated stronger decreases of copper and lead, but no clear changes of cadmium and zinc concentrations. The accumulation experiment with C. rhizophorae is useful to estimate trace metal bioavailability and changes in concentrations as a function of time at the contaminated site. The different results of elimination experiments in the uncontaminated site suggest different degrees of trace metal fixation after long-term and short-term accumulation periods.Submitted by Suelen Reis (suelen_suzane@hotmail.com) on 2013-01-16T14:50:57Z No. of bitstreams: 1 Theede.pdf: 266663 bytes, checksum: 2a4438b0bc00cfc600220982def60757 (MD5)Made available in DSpace on 2013-01-16T14:50:57Z (GMT). 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dc.title.pt_BR.fl_str_mv Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
dc.title.alternative.pt_BR.fl_str_mv Archives of Environmental Contamination and Toxicology
title Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
spellingShingle Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
Kersanach, M. Wallner
title_short Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
title_full Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
title_fullStr Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
title_full_unstemmed Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
title_sort Accumulation and elimination of trace metals in a transplantation experiment with Crassostrea rhizophorae
author Kersanach, M. Wallner
author_facet Kersanach, M. Wallner
Theede, H.
Eversberg, U.
Lobo, S.
author_role author
author2 Theede, H.
Eversberg, U.
Lobo, S.
author2_role author
author
author
dc.contributor.author.fl_str_mv Kersanach, M. Wallner
Theede, H.
Eversberg, U.
Lobo, S.
Kersanach, M. Wallner
Theede, H.
Eversberg, U.
Lobo, S.
description Texto completo: acesso restrito. p.40-45
publishDate 2000
dc.date.issued.fl_str_mv 2000
dc.date.accessioned.fl_str_mv 2013-01-16T14:50:57Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7913
dc.identifier.issn.none.fl_str_mv 0090-4341
dc.identifier.number.pt_BR.fl_str_mv v. 38, n. 1
identifier_str_mv 0090-4341
v. 38, n. 1
url http://www.repositorio.ufba.br/ri/handle/ri/7913
dc.language.iso.fl_str_mv eng
language eng
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