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Boletim do Instituto de Pesca
Article . 2018
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Toxicidade aguda do praguicida organofosforado diclorvos e da mistura com o piretróide deltametrina em Danio rerio e Hyphessobrycon bifasciatus

Authors: Daniela TREVIS; Soraya Ferreira HABR; Francis Mary VAROLI; Maria Martha BERNARDI;

Toxicidade aguda do praguicida organofosforado diclorvos e da mistura com o piretróide deltametrina em Danio rerio e Hyphessobrycon bifasciatus

Abstract

Praguicidas como o Diclorvos (DDVP) e a Deltametrina (DTM) são comumente usados na produção agrí­­cola. Para avaliar a toxicidade de formulações comerciais do DDVP e da mistura deste com a DDM, foram realizados testes de toxicidade aguda em peixes das espécies Danio rerio e Hyphessobrycon bifasciatus. Para a mistura foram utilizadas as maiores concentrações dos praguicidas testados que não provocaram letalidade. Os resultados obtidos mostraram que, nas concentrações empregadas, o praguicida DDVP promove o efeito "tudo ou nadaâ€Â. No caso da mistura verificou-se a ocorrência de 100% de letalidade em concentrações dos praguicidas que não produziram letalidade se administradas isoladamente. Desta forma evidenciou-se efeito sinérgico dos praguicidas, sugerindo que o emprego de misturas destes praguicidas pode representar um fator importante. Finalmente, o efeito da toxicidade apresentada pelas duas espécies foi similar, sugerindo que Hyphessobrycon bifasciatus pode ser útil no caso de avaliações ambientais das condições nacionais.

Keywords

letalidade, Aquaculture. Fisheries. Angling, SH1-691, ecotoxicologia, mistura de praguicidas, peixes, praguicida

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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