Impact of selected synthetic pyrethroids and organophosphorous pesticides on the tadpole shrimp, Triops longicaudatus (Le Conte) (Notostraca: Triopsidae).

The article presents a study regarding the effect of synthetic pyrethroids and organophosphorus pesticides on tadpole shrimp Triops longicaudatus. The study used field tests of resmethrin and cypermethrin (emulsifiable concentrate) (EC), laboratory bioassays, and Mann-Whitney U statistics. Results showed that abundance of Triops was decreased by resmethrin while cypermethrin activity was enhanced against tadpole.