Abstract
A total of 19 PCB congeners were determined in muscle of 2 European roach (Rutilus rutilus) and in muscle and liver of 3 pike (Esox lucius) of a small rural lake in the southern Black Forest (Germany) to examine the biomagnification in freshwater fish. The lake is known for a relatively high PCB contamination of its sediments due to past local emissions. The presence of a structure dependent biomagnification in these freshwater fish of two different trophical levels is confirmed. The relative contents of PCB congeners with vicinal H-atoms in m,p- and to a lesser extent, o,m-positions become smaller from roach to pike indicating a stronger induction of PCB metabolizing isoenzymes in the predatory fish. This could also be shown by application of the metabolic slope concept.
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Received: 24 July 1997 / Revised: 22 December 1997 / Accepted: 1 January 1998
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Looser, R., Ballschmiter, K. Biomagnification of polychlorinated biphenyls (PCBs) in freshwater fish. Fresenius J Anal Chem 360, 816–819 (1998). https://doi.org/10.1007/s002160050816
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DOI: https://doi.org/10.1007/s002160050816