ChileanJAR

The ecotoxicological impact of the insecticide cartap, extracted from the marine polychaete Lumbrinereis spp., was evaluated on three representative organisms of the animal community. The microcrustaceans Moina macrocopa (Sars) (freshwater environment) and Porcellio laevis Latreille (terrestrial environment), and also the parasitoid microhymenopterans Muscidifurax raptorrellus Kogan & Legner (aerial environment) were used as side effect organisms on different models of acute bioassays at 24 and 48 h of exposure to determine the toxicological impact of cartap. The LD₅₀ (mean lethal dose) of P. laevis and the LC₅₀ (mean lethal concentration) of M. macrocopa and M. raptorrellus, allowed the calculation of the risk quotients (RQs) for the environmental risk assessment (ERA) of this product in the ecosystem. The analysis of ERA and LT₅₀ (mean lethal time) indicated a moderate impact for cartap on the environment.