“…These bioassays include those for phytoplankton [6], the freshwater amphipods Hyalella azteca [7,8] and Gammarus pulex [3,9], Daphnia magna [2], Ceriodaphnia dubia [10,11], the midge Chironomus tentans [8,12], the mayfly Caenis spec [7], the trichoptera Limnephilus lunatus [3], and the oligochaete Lumbriculus variegatus [12]. These bioassays include those for phytoplankton [6], the freshwater amphipods Hyalella azteca [7,8] and Gammarus pulex [3,9], Daphnia magna [2], Ceriodaphnia dubia [10,11], the midge Chironomus tentans [8,12], the mayfly Caenis spec [7], the trichoptera Limnephilus lunatus [3], and the oligochaete Lumbriculus variegatus [12].…”