“…Depending on the species, some fish can survive with high levels of AChE inhibition, whereas other species die at the same concentrations. In this sense, carps exposed to fenthion survived even with inhibition of 90% (Üner et al, 2009), as well as C. auratus and carps exposed to carbofuran (Bretaud et al, 2000;Clasen et al, 2014), with AChE inhibition of up to 87%. Nevertheless, 70-80% of AChE inhibition is generally assumed as cause of death (Bradbury et al, 2008).…”