Citation:Chandraekara, L.W.H.U. and Pathiratne, A. 2005. Effects of Pyrene exposure on Xenobiotic metabolizing enzymes in Nile Tilapia, Oreochromis niloticus. Proceedings of the 10th Annual Scientific sessions of the Sri Lanka Association for Fisheries and Aquatic Resources, Sri Lanka Association for Fisheries and Aquatic Resources, Colombo, Sri Lanka. (Abstract) p.15.