Toxicidade aguda e subaguda do inseticida Methyl parathion no pacu (Piaractus mesopotamicus Holmberg, 1887)

• Ano de defesa: 2002
• Autor(a) principal: Mataqueiro, Maria Isabel [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Pacu (Peixe); Compostos organofosforados; Toxicidade - Testes; Toxicidade Aguda; Inseticidas; Insecticides
• Link de acesso: http://hdl.handle.net/11449/144181; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/13-09-2016/000164650.pdf

The acute toxicity of methyl parathion in pacu fingerlings (Piaractus mesopotamicus) subjected to soft and dam water was tested. The experiment was conducted in a controlled system according to IBAMA standards (1987) and CETESB tests (1979) of acute toxicity to fish, with some modifications. We verified a linear increase in pacu mortality with the increase of the insecticide dose in water. Methyl parathion was more toxic to pacu in soft than in dam water. The estimated values of methyl parathion Cl50, to pacu in soft and dam water were 4,06 mg/L and 5,15 mg/L, respectively