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

Contaminants formed after the use of pesticides raise concerns for human health and aquatic ecosystems, i. a., due to their high persistence in surface waters and their further migration to other components of the environment. In our study, we compared the effect of the insecticide Mospilan SP and its active substance acetamiprid on the aquatic crustacean Artemia franciscana. The concentration was 367.44 mg/l for Mospilan SP LC₅₀ after 120 h, and 102.82 mg/l after 144 hours. The concentration was 148.04 mg/l for the active substance acetamiprid LC₂₀ after 144 h and 28.84 mg/l after 168 hours. The commercial insecticide Mospilan SP showed a significant suppressive effect on the measured morphological parameters (body length and body width), with statistically significant differences observed after 10 days 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.