Fig. 4. Abundance of zooplankton taxa including Calanoida, Cyclopoida, Ostracoda, Daphnia pulex, Chydorus sp., and Ceriodaphnia sp. over the course of a mesocosm experiment among
carbamazepine (CBZ) treatments in summer 2013. N=4. Data are mean ± 1 SE. *Denotes significant difference between D. pulex abundance inmesocosms with 200 ng/L of carbamazepine
and control mesocosms (P b 0.05).