Nationwide PCB congener pattern analysis in freshwater fish samples in France M. Babut, A. Mathieu, S. Pradelle, P. Marchand, B. Le Bizec and O. Perceval Knowl. Managt. Aquatic Ecosyst., 407 (2012) 07 Published online: 06 March 2013 DOI: 10.1051/kmae/2013033