Toxicidade aguda e crônica do mercúrio em tilápia Tailandesa, Oreochromis niloticus: derteminação da CL50-96h e alterações hematológicas

• Ano de defesa: 2003
• Autor(a) principal: Ishikawa, Nilton Massuo [UNESP]
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Estadual Paulista (Unesp)
• Palavras-chave em Português: Mercurio; Tilapia (Peixe); Toxicidade - Testes; Toxicidade Aguda; Hematologia; Fishes
• Link de acesso: http://hdl.handle.net/11449/144157; http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/13-09-2016/000196244.pdf

This paper reports the median lethal concentration (LC50-96) of mercury by semi-static acute toxicity test, in Tailand tilapia, Oreochromis niloticus. The challenge was conduct in the Toxicology Laboratory - Instituto de Pesca, SP, with constant temperature. The methods used were those recommended by APHA et al. (1986) and the tests performed with alevins (mean length of 2.46+0.21 cm and mean weight of 0.41+0.12 g). The fish were kept in eighteen 5-liter glass aquaria fill with dischlorinate water plus the mercury of the following concentrations (control, 0.037, 0.185, 0.370, 0.740, 0.925 mg.L-1Hg) during 96 hours. The mortality was registered each 24 hours. Was determined, by the Trimmed Spearman Karber statistic method (HAMILTON et al. 1977). The median lethal concentration (LC50-96) of 0.1961 mg.L-1Hg of mercury for tilapia alevin