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PCB concentrations and metabolism patterns in Common Terns (Sterna hirundo) from different breeding colonies in the Netherlands
Van den Brink, N.W.; Bosveld, A.T. C (2001). PCB concentrations and metabolism patterns in Common Terns (Sterna hirundo) from different breeding colonies in the Netherlands. Mar. Pollut. Bull. 42(4): 280-285. hdl.handle.net/10.1016/S0025-326X(00)00151-X
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X, more
Peer reviewed article  

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Author keywords
    PCB contamination; PCB pattern analysis; birds; effects; metabolism; non-destructive

Authors  Top 
  • Van den Brink, N.W.
  • Bosveld, A.T. C

Abstract
    PCB levels in blood of common terns (Sterna hirundo) from Terneuzen, a breeding colony in The Netherlands with relatively low breeding success, were significantly higher than in birds from two Dutch reference colonies, one nearby (Oesterdam) and one further away (the Isle of Griend). However, a detailed analysis of the patterns of PCB congeners in birds from the different colonies indicated that birds from Terneuzen and to a lesser extent birds from the Oesterdam showed Ah-receptor mediated activity of P450 iso-enzymes. It is concluded that the induction of this enzyme activity in Terneuzen may be related to PCBs as well as other non-identified compounds. In contrast to this, it is likely that at the Oesterdam non-identified compounds are mainly responsible for the enzyme activity, resulting in a shift of PCB congener patterns.

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