%0 conference lecture %@ %A Ahrens, L.,Siebert, U.,Ebinghaus, R. %D 2009 %J Protecting ecosystem health: facing the challenge of a globally changing environment, SETAC Europe 19th Annual Meeting %N %P %T Temporal trends of polyfluoroalkyl compounds in harbor seals (Phoca vitulina) from the German Bight %U %X