Comparison of the effect of Mospilan SP and its active substance on Artemia franciscana

Contaminants formed after the use ofpesticides raise concerns for human health and aquatic ecosystems, i. a., due totheir high persistence insurface waters and their further migration toother components ofthe environment. Inour study, wecompared the effect ofthe insecticide Mospilan SP and its active substance acetamiprid onthe aquatic crustacean Artemia franciscana. The concentration was 367.44mg/l for Mospilan SP LC50 after 120h, and 102.82mg/l after 144 hours. The concentration was 148.04mg/l for the active substance acetamiprid LC20 after 144h and 28.84mg/l after 168 hours. The commercial insecticide Mospilan SP showed asignificant suppressive effect onthe measured morphological parameters (body length and body width), with statistically significant differences observed after 10days of exposure. When comparing the changes after the application of the insecticide and the active substance, it is impossible to confirm the same effect on the morphological parameters within the given time intervals. The objective of the study was to examine morphological changes at sublethal concentrations, as these changes can provide a more sensitive indication of the adverse effects of commercial products and active substances on morphological parameters.