The hypothesis that the nature and force of PAH stress responses from plankton systems are coupled to the nutrient status of that system was tested in a mesocosm experiment. Four treatments were applied consisting of control (Cn), pyrene exposed (PYl. nutrient spiked (Nul. and nutrient spiked and pyrene exposed (NuPy) groups in replicate bags (n = 3) representing plankton communities including ...