Effects of Polychlorinated Biphenyls (PCBs) on a Marine Plankton Population and Sedimentation in Controlled Ecosystem Enclosures


Effects of polychlor~nated b~phenyls (PCBs) on a natural rnarlne rcosystem were studied employing controlled ecosystem enclosures (CEEs) which conta~ned 68 m ' of srdwater and the natural sea-water biota (Saan~ch Inlet, Br~tish Co lumb~a , Canada) Follotv~ng a d d ~ t ~ o ~ l of PCBs 150 { r r j I l ) to a CEE, prlmary productivity was initially reduced by… (More)