Laboratory Estimation of Net Trophic Transfer Efficiencies of PCB Congeners to Lake Trout (Salvelinus namaycush) from Its PreyCharles P. Madenjian 1, Richard R. Rediske 2, James P. O'Keefe 2, Solomon R. David 3
1Great Lakes Science Center, U. S. Geological Survey, 2Annis Water Resources Institute, Grand Valley State University, 3Daniel P. Haerther Center for Conservation and Research, Shedd Aquarium
A technique for laboratory estimation of net trophic transfer efficiency of polychlorinated biphenyl (PCB) congeners to piscivorous fish from their prey is presented. To maximize applicability of the laboratory results to the field, the piscivorous fish should be fed prey fish that are typically eaten in the field.