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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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| 42. |  | MUNIZ, D. H. de F.; OLIVEIRA FILHO, E. C. de; CRUZ, J. D. da; FREIRE, I de S. Avaliação da qualidade da água superficial do Ribeirão Sobradinho (Bacia do São Bartolomeu, DF). In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 4., 2009, Planaltina, DF. Resumos apresentados... Planaltina, DF: Embrapa Cerrados, 2009. p. 167-168 (Embrapa Cerrados. Documentos, 243).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 48. | | MORAES, A. S.; MUNIZ, D. H. de F.; FREIRE, I. de S.; OLIVEIRA-FILHO, E. C. de. Caracterização de parâmetros físico-químicos e microbiológicos na Água do Rio Jardim, Brasília, DF. In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 4., 2009, Planaltina, DF. Resumos apresentados... Planaltina, DF: Embrapa Cerrados, 2009. p. 35-36 (Embrapa Cerrados. Documentos, 243).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 50. | | RIBEIRO, M. R.; SOUSA, S. R.; MUNIZ, D. H. de F.; SILVA, M. C. DA; OLIVEIRA FILHO, E. C. de. Caracterização microbiológica e físico-química de águas superficiais em parqus urbanos no Distrito Federal. Universitas: Ciências da Saúde, Brasília, DF, v. 8, n. 2, p. 15-34, jul./dez. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
| Biblioteca(s): Embrapa Cerrados. |
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| 54. | | VARGAS, L. M. P.; LIMA, J. E. F. W.; OLIVEIRA FILHO, E. C. de; SILVA, E. M. da. Fluxos de nutrientes e agrotóxicos nos recursos hídricos sob diferentes usos de terra na bacia do rio Jardim, Distrito Federal. In: MOSTRA DE RESULTADOS DE PESQUISA DOS PROJETOS FINALIZADOS EM 2006 E 2007, 2., 2009, Planaltina, DF. [Anais...]. Planaltina, DF: Embrapa Cerrados, 2009. p. 129-136. (Embrapa Cerrados. Documentos, 244). Editores técnicos Eduardo Cyrino de Oliveira-Filho, Fernando Antônio Macena da Silva, Maria Lucia Meirelles, Eduardo Alano Vieira, Geraldo Bueno Martha Junior, Arminda Moreira de Carvalho, José Carlos Sousa e Silva, CPAC.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Cerrados. |
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| 55. | | TALLARICO, L. de F.; LANZER, R. M.; ELIAS, D. C.; NAKANO, E.; OLIVEIRA FILHO, E. C. de. Ecotoxicological assays employing the freshwater gastropod Biomphalaria glabrata (Say, 1818). In: WORLD CONGRESS MALACOLOGY, 2022, Munich. Spixiana Supplement 30 A, p. 280, 2022. 1 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 116 | |
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