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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
21/08/2017 |
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Data da última atualização: |
06/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BRITO, D. Q.; PASSOS, C. J. S.; MUNIZ, D. H. de F.; OLIVEIRA FILHO, E. C. de. |
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Afiliação: |
DARLAN Q. BRITO; CARLOS JOSÉ S. PASSOS; DAPHNE HELOISA DE FREITAS MUNIZ, CPAC; EDUARDO CYRINO DE OLIVEIRA FILHO, CPAC. |
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Título: |
Aquatic ecotoxicity of ashes from Brazilian savanna wildfires. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 24, n. 24, p. 19671-19682, August 2017. |
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DOI: |
10.1007/s11356-017-9578-0 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: In a global scenario of climate change, several studies have predicted an increase in fires in different parts of the world. With the occurrence of rains following the fires in the Brazilian savanna (Cerrado biome), the compounds present in ashes may enter aquatic environments and cause adverse effects to these ecosystems. In this context, this study evaluated the potential toxicity of ashes from two areas of Cerrado and an area of pasture, through ecotoxicological bioassays and using three aquatic species from distinct trophic levels, which were exposed to different dilutions of ashes: the microcrustacean Ceriodaphnia dubia, the fish Danio rerio and the mollusc Biomphalaria glabrata. The ashes from the three sampled areas showed higher concentrations of some elements in relation to the soil samples (B, Ca, K, Mg, Mn, P, S, Si, Sr, Zn), but only a small quantity of these compounds was solubilised. Our data showed that all ash samples caused acute toxicity to C. dubia (48hs-LC50 = 13.4 g L?1; 48hs-LC50 = 6.33 g L?1; 48hs-LC50 = 9.73 g L?1 respectively for transition area, pasture, typical cerrado areas), while in relation to D. rerio and B. glabrata, no acute toxicity was observed when they were exposed to ashes from native Cerrado vegetation and pasture areas. Ashes from a transition area showed toxicity for D. rerio (48hs-LC50 = 25.0 g L?1); possibly, this was due to the combination of multiple preponderant inorganic elements of ashes with other organic compounds not analysed, such as polycyclic aromatic hydrocarbons (PAHs). In summary, these results suggest that wildfires may pose risks to zooplankton communities and emphasize the need for more studies to better understand the complexity of the ecological effects of fire on aquatic ecosystems. MenosAbstract: In a global scenario of climate change, several studies have predicted an increase in fires in different parts of the world. With the occurrence of rains following the fires in the Brazilian savanna (Cerrado biome), the compounds present in ashes may enter aquatic environments and cause adverse effects to these ecosystems. In this context, this study evaluated the potential toxicity of ashes from two areas of Cerrado and an area of pasture, through ecotoxicological bioassays and using three aquatic species from distinct trophic levels, which were exposed to different dilutions of ashes: the microcrustacean Ceriodaphnia dubia, the fish Danio rerio and the mollusc Biomphalaria glabrata. The ashes from the three sampled areas showed higher concentrations of some elements in relation to the soil samples (B, Ca, K, Mg, Mn, P, S, Si, Sr, Zn), but only a small quantity of these compounds was solubilised. Our data showed that all ash samples caused acute toxicity to C. dubia (48hs-LC50 = 13.4 g L?1; 48hs-LC50 = 6.33 g L?1; 48hs-LC50 = 9.73 g L?1 respectively for transition area, pasture, typical cerrado areas), while in relation to D. rerio and B. glabrata, no acute toxicity was observed when they were exposed to ashes from native Cerrado vegetation and pasture areas. Ashes from a transition area showed toxicity for D. rerio (48hs-LC50 = 25.0 g L?1); possibly, this was due to the combination of multiple preponderant inorganic elements of ashes with other organic compounds ... Mostrar Tudo |
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Thesagro: |
Cerrado; Fogo; Organismo aquático; Queimada. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02420naa a2200217 a 4500
001 2074231
005 2017-09-06
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1007/s11356-017-9578-0$2DOI
100 1 $aBRITO, D. Q.
245 $aAquatic ecotoxicity of ashes from Brazilian savanna wildfires.
260 $c2017
520 $aAbstract: In a global scenario of climate change, several studies have predicted an increase in fires in different parts of the world. With the occurrence of rains following the fires in the Brazilian savanna (Cerrado biome), the compounds present in ashes may enter aquatic environments and cause adverse effects to these ecosystems. In this context, this study evaluated the potential toxicity of ashes from two areas of Cerrado and an area of pasture, through ecotoxicological bioassays and using three aquatic species from distinct trophic levels, which were exposed to different dilutions of ashes: the microcrustacean Ceriodaphnia dubia, the fish Danio rerio and the mollusc Biomphalaria glabrata. The ashes from the three sampled areas showed higher concentrations of some elements in relation to the soil samples (B, Ca, K, Mg, Mn, P, S, Si, Sr, Zn), but only a small quantity of these compounds was solubilised. Our data showed that all ash samples caused acute toxicity to C. dubia (48hs-LC50 = 13.4 g L?1; 48hs-LC50 = 6.33 g L?1; 48hs-LC50 = 9.73 g L?1 respectively for transition area, pasture, typical cerrado areas), while in relation to D. rerio and B. glabrata, no acute toxicity was observed when they were exposed to ashes from native Cerrado vegetation and pasture areas. Ashes from a transition area showed toxicity for D. rerio (48hs-LC50 = 25.0 g L?1); possibly, this was due to the combination of multiple preponderant inorganic elements of ashes with other organic compounds not analysed, such as polycyclic aromatic hydrocarbons (PAHs). In summary, these results suggest that wildfires may pose risks to zooplankton communities and emphasize the need for more studies to better understand the complexity of the ecological effects of fire on aquatic ecosystems.
650 $aCerrado
650 $aFogo
650 $aOrganismo aquático
650 $aQueimada
700 1 $aPASSOS, C. J. S.
700 1 $aMUNIZ, D. H. de F.
700 1 $aOLIVEIRA FILHO, E. C. de
773 $tEnvironmental Science and Pollution Research$gv. 24, n. 24, p. 19671-19682, August 2017.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Soja. |
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Data corrente: |
11/08/2006 |
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Data da última atualização: |
19/03/2008 |
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Autoria: |
SILVA, L.; MONTEIRO, P. M. F. O; VIEIRA, N. E.; NUNES, M. R.; NEIVA, L. C. S; GUIMARÃES, L. B.; TOLEDO, R. M. C. P.; SOUZA, P. I. M.; ASSUNÇÃO, M. da S.; MOREIRA, C. T.; SILVA, S. A. da; FARIAS NETO, A. L. de; YORINORI, J. T.; ALMEIDA, L. A. de; KASTER, M. |
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Título: |
Indicação da cultivar BRSGO Edéia para os estados de Goiás, Distrito Federal, Mato Grosso e Minas Gerais. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 28., 2006, Uberaba. Resumos... Londrina: Embrapa Soja: Fundação Meridional: Fundação Triângulo, 2006. |
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Páginas: |
p. 343-344. |
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Série: |
(Embrapa Soja. Documentos, 272). |
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Idioma: |
Português |
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Notas: |
Organizado por Odilon Ferreira Saraiva, Regina Maria Villas Boas de Campos Leite, Janete Lasso Ortiz. |
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Thesagro: |
Glycine Max; Soja; Variedade. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01211naa a2200349 a 4500
001 1469509
005 2008-03-19
008 2006 bl uuuu u00u1 u #d
100 1 $aSILVA, L.
245 $aIndicação da cultivar BRSGO Edéia para os estados de Goiás, Distrito Federal, Mato Grosso e Minas Gerais.
260 $c2006
300 $ap. 343-344.
490 $a(Embrapa Soja. Documentos, 272).
500 $aOrganizado por Odilon Ferreira Saraiva, Regina Maria Villas Boas de Campos Leite, Janete Lasso Ortiz.
650 $aGlycine Max
650 $aSoja
650 $aVariedade
700 1 $aMONTEIRO, P. M. F. O
700 1 $aVIEIRA, N. E.
700 1 $aNUNES, M. R.
700 1 $aNEIVA, L. C. S
700 1 $aGUIMARÃES, L. B.
700 1 $aTOLEDO, R. M. C. P.
700 1 $aSOUZA, P. I. M.
700 1 $aASSUNÇÃO, M. da S.
700 1 $aMOREIRA, C. T.
700 1 $aSILVA, S. A. da
700 1 $aFARIAS NETO, A. L. de
700 1 $aYORINORI, J. T.
700 1 $aALMEIDA, L. A. de
700 1 $aKASTER, M.
773 $tIn: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 28., 2006, Uberaba. Resumos... Londrina: Embrapa Soja: Fundação Meridional: Fundação Triângulo, 2006.
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