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Author Tartu S, Angelier F, Bustnes JO, Moe B, Hanssen SA, Herzke D, Gabrielsen GW, Verboven N, Verreault J, Labadie P, Budzinski H, Wingfield JC, Chastel O, pdf  doi
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  Title Polychlorinated biphenyl exposure and corticosterone levels in seven polar seabird species Type Journal Article
  Year (down) 2015 Publication Environmental Pollution Abbreviated Journal  
  Volume 197 Issue Pages 173-180  
  Keywords Antarctic, Arctic, Birds, Glucocorticoids, PCBs, Stress,  
  Abstract The role of polychlorinated biphenyls (PCBs) on exposure-related endocrine effects has been poorly investigated in wild birds. This is the case for stress hormones including corticosterone (CORT). Some studies have suggested that environmental exposure to PCBs and altered CORT secretion might be associated. Here we investigated the relationships between blood PCB concentrations and circulating CORT levels in seven free-ranging polar seabird species occupying different trophic positions, and hence covering a wide range of PCB exposure. Blood ∑7PCB concentrations (range: 61–115,632 ng/g lw) were positively associated to baseline or stress-induced CORT levels in three species and negatively associated to stress-induced CORT levels in one species. Global analysis suggests that in males, baseline CORT levels generally increase with increasing blood ∑7PCB concentrations, whereas stress-induced CORT levels decrease when reaching high blood ∑7PCB concentrations. This study suggests that the nature of the PCB-CORT relationships may depend on the level of PCB exposure.  
  Programme 109,330  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0269-7491 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6030  
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