Acute toxicity of copper and cadmium for piau u, Leporinus macrocephalus, and curimat , Prochilodus vimboides = Toxicidade aguda do cobre e do c芍dmio no piau u, Leporinus macrocephalus, e no curimat , Prochilodus vimboides

作者：Levy Carvalho Gomes; Adriana Regina Chippari Gomes; Rodrigo Nunes Oss

来源：Acta Scientiarum - Biological Sciences, 2009.

• lethal concentration
• Doce river
• Southeast region
• fish and metal
• concentra o letal
• rio Doce
• regi o Sudeste
• peixe e metal

Ninety-six-hour static bioassays were conducted in the laboratory to determine lethal concentrations (96-h LC50) of copper and cadmium for curimat (Prochilodus vimboides) and piau u (Leporinus macrocephalus). The 96-h LC50 of copper were 0.047 and 0.090 mg L-1, and of cadmium 3.16 and 7.42 mg L-1 for curimat and piau u, respectively. Curimat is a preferred indigenous species for toxicological studies in the Doce River basin due to its availability in the hatcheries of the region and high sensitivity to metals. Bioensaios est芍ticos foram realizados em laborat車rio para determinar a concentra o letal (96-h CL50) do cobre e do c芍dmio para o curimat (Prochilodus vimboides) e o piau u (Leporinus macrocephalus). A CL50 do cobre 谷 de 0,047 e 0,090 mg L-1 e do c芍dmio de 3,16 e 7,42 mg L-1 para curimat e piau u, respectivamente. O curimat 谷 a esp谷cie nativa mais adequada para estudos toxicol車gicos da bacia do rio Doce, por sua f芍cil disponibilidade em pisciculturas da regi o e altasensibilidade aos metais.