- Mortality and LC50 values for several stages of the marine copepod Tigriopus brevicornis (Müller) exposed to the metals arsenic and cadmium and the pesticides atrazine, carbofuran, dichlorvos, and malathion. Forget, J., Pavillon, J.F., Menasria, M.R., Bocquené, G. Ecotoxicol. Environ. Saf. (1998)