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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
24/01/2017 |
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Data da última atualização: |
03/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOURA, M. A. M.; JONSSON, C. M. |
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Afiliação: |
MONICA ACAUI MARCONDES DE MOURA, IB-APTA; CLAUDIO MARTIN JONSSON, CNPMA. |
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Título: |
Acute toxicity of mixture of sugarcane herbicides to tilapia fingerlings. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Ecotoxicology and Environmental Contamination, v. 11, n. 1, p. 15-20, 2016. |
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DOI: |
http://dx.doi.org/10.5132/eec.2016.01.03 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Sugarcane cultivation is the most important agricultural activity in the State of São Paulo, which is responsible for over half of Brazilian production of the crop. Eutrophication and contamination of hydric resources caused by agricultural chemicals are major problems related to this crop. In the case of herbicides used to control weeds, aquatic organisms can be exposed to more than one toxic agent, and combinations of such pollutants can have different effects on biological systems. The aim of this work was to evaluate the toxic effects of mixtures of herbicides widely used in sugarcane cultivation, namely tebuthiuron (TBUT), ametryn (AMT), and Velpar K (a commercial mixture of diuron (DIU) and hexazinone (HZN)), to tilapia (Oreochromis niloticus) fingerling. The herbicides showed low to moderate toxicity and AMT was notably more toxic then TBUT and DIU+HZN. The mixtures were found to be moderately toxic to the tilapia fingerling (LC50;96h were: TBUT+AMT: 10.76 mg L-1; (DIU+HZN)+TBUT: 43.09 mg L-1; and (DIU+HZN)+TBUT+AMT: 11.90 mg L-1), and a slight antagonism was observed between the components tested. These findings could contribute to the establishment of maximum permissible levels for the herbicides in Brazilian continental water bodies. |
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Thesagro: |
Cana de açúcar; Herbicida; Oreochromis niloticus; Tilápia nilótica; Toxidez. |
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Thesaurus Nal: |
Acute toxicity; Ametryn; Diuron; Freshwater fish; Herbicides; Hexazinone; Sugarcane; Tebuthiuron. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/153863/1/2016AP23.pdf
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Marc: |
LEADER 02138naa a2200301 a 4500
001 2061626
005 2017-03-03
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.5132/eec.2016.01.03$2DOI
100 1 $aMOURA, M. A. M.
245 $aAcute toxicity of mixture of sugarcane herbicides to tilapia fingerlings.$h[electronic resource]
260 $c2016
520 $aAbstract: Sugarcane cultivation is the most important agricultural activity in the State of São Paulo, which is responsible for over half of Brazilian production of the crop. Eutrophication and contamination of hydric resources caused by agricultural chemicals are major problems related to this crop. In the case of herbicides used to control weeds, aquatic organisms can be exposed to more than one toxic agent, and combinations of such pollutants can have different effects on biological systems. The aim of this work was to evaluate the toxic effects of mixtures of herbicides widely used in sugarcane cultivation, namely tebuthiuron (TBUT), ametryn (AMT), and Velpar K (a commercial mixture of diuron (DIU) and hexazinone (HZN)), to tilapia (Oreochromis niloticus) fingerling. The herbicides showed low to moderate toxicity and AMT was notably more toxic then TBUT and DIU+HZN. The mixtures were found to be moderately toxic to the tilapia fingerling (LC50;96h were: TBUT+AMT: 10.76 mg L-1; (DIU+HZN)+TBUT: 43.09 mg L-1; and (DIU+HZN)+TBUT+AMT: 11.90 mg L-1), and a slight antagonism was observed between the components tested. These findings could contribute to the establishment of maximum permissible levels for the herbicides in Brazilian continental water bodies.
650 $aAcute toxicity
650 $aAmetryn
650 $aDiuron
650 $aFreshwater fish
650 $aHerbicides
650 $aHexazinone
650 $aSugarcane
650 $aTebuthiuron
650 $aCana de açúcar
650 $aHerbicida
650 $aOreochromis niloticus
650 $aTilápia nilótica
650 $aToxidez
700 1 $aJONSSON, C. M.
773 $tEcotoxicology and Environmental Contamination$gv. 11, n. 1, p. 15-20, 2016.
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Embrapa Meio Ambiente (CNPMA) |
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