Mortality and toxicity of a commercial formulation of cypermethrin in Physalaemus gracilis tadpoles.

ABSTRACT: This study evaluated the lethal, sublethal, and toxic of a commercial formulation of cypermethrin in the anuran species Physalaemus gracilis. In the acute test, concentrations of 100-800 μg L^-1 were tested over 96 h. In the chronic test, cypermethrin concentrations recorded in nature (1, 3, 6, and 20 μg L^-1) were tested for mortality and then used for the micronucleus test and erythrocyte nuclear abnormalities over a 7-days period. The LC₅₀ determined for P. gracilis for the commercial cypermethrin formulation was 273.41 μg L^-1. In the chronic test, a mortality of more than 50% was observed at the highest concentration (20 μg L^-1), as it caused half of the tadpoles studied to die. The micronucleus test showed significant results at con

SUBMITTER: Macagnan N 

PROVIDER: S-EPMC10587170 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature