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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
22/01/2015 |
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Data da última atualização: |
22/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
Silva-Filho, E. V.; Kütter, V. T.; Figueiredo, T. S.; Tessier, E.; Rezende, C. E.; Teixeira, D. C.; SILVA, C. A. da; Donard, O. F. X. |
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Afiliação: |
Emmanoel V. Silva-Filho, UFF; Vinicius T. Kütter, UFF; Thiago S. Figueiredo, UFF; Emmanuel Tessier, Université de Pau et des Pays de l' Adour; Carlos E. Rezende, UENF; Daniel C. Teixeira, UFF; CARLOS ALBERTO DA SILVA, CPATC; Olivier F. X. Donard, Université de Pau et des Pays de l' Adour. |
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Título: |
Mercury speciation in plankton from the Cabo Frio Bay, SE - Brazil. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Environ Monit Assess, 14, August, 2014. |
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DOI: |
10.1007/s10661-014-3992-2 |
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Idioma: |
Inglês |
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Conteúdo: |
Mercury (Hg) is considered a global pollutant, and the scientific community has shown great concern about its toxicity as it may affect the biota of entire systems, through bioaccumulation and bioamplification processes of its organic form, methylmercury (MeHg), along food web. However, few research studies deal with bioaccumulation of Hg from marine primary producers and the first-order consumers. So, this study aims to determine Hg distribution and concentration levels in phytoplankton and zooplankton in the Cabo Frio Bay, Brazil, a site influenced by coastal upwelling. The results from Hg speciation analyses show that inorganic mercury Hg(II) was the predominant specie in plankton from this bay. The annual Hg species distribution in plankton shown mean concentration of 2.00± 1.28 ng Hg(II)g − 1 and 0.15±0.08 ng MeHg g − 1 wet weight (phytoplankton) and 2.5±2.03 ng Hg(II)g − 1 and 0.25±0.09 ng MeHg g − 1 wet weight (zooplankton). Therefore, upwelling zones should be considered in the Hg biogeochemical cycle models as a process that en- hances Hg(II) bioaccumulation in plankton, raising its bioavailability and shelf deposition. |
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Thesaurus Nal: |
Biogeochemistry; Phytoplankton; Trace elements; Zooplankton. |
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Categoria do assunto: |
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Marc: |
LEADER 01921naa a2200265 a 4500
001 2006480
005 2015-01-22
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1007/s10661-014-3992-2$2DOI
100 1 $aSilva-Filho, E. V.
245 $aMercury speciation in plankton from the Cabo Frio Bay, SE - Brazil.$h[electronic resource]
260 $c2014
520 $aMercury (Hg) is considered a global pollutant, and the scientific community has shown great concern about its toxicity as it may affect the biota of entire systems, through bioaccumulation and bioamplification processes of its organic form, methylmercury (MeHg), along food web. However, few research studies deal with bioaccumulation of Hg from marine primary producers and the first-order consumers. So, this study aims to determine Hg distribution and concentration levels in phytoplankton and zooplankton in the Cabo Frio Bay, Brazil, a site influenced by coastal upwelling. The results from Hg speciation analyses show that inorganic mercury Hg(II) was the predominant specie in plankton from this bay. The annual Hg species distribution in plankton shown mean concentration of 2.00± 1.28 ng Hg(II)g − 1 and 0.15±0.08 ng MeHg g − 1 wet weight (phytoplankton) and 2.5±2.03 ng Hg(II)g − 1 and 0.25±0.09 ng MeHg g − 1 wet weight (zooplankton). Therefore, upwelling zones should be considered in the Hg biogeochemical cycle models as a process that en- hances Hg(II) bioaccumulation in plankton, raising its bioavailability and shelf deposition.
650 $aBiogeochemistry
650 $aPhytoplankton
650 $aTrace elements
650 $aZooplankton
700 1 $aKütter, V. T.
700 1 $aFigueiredo, T. S.
700 1 $aTessier, E.
700 1 $aRezende, C. E.
700 1 $aTeixeira, D. C.
700 1 $aSILVA, C. A. da
700 1 $aDonard, O. F. X.
773 $tEnviron Monit Assess, 14, August, 2014.
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