(Table 1) Concentrations of persistant organic pollutants in brain and liver of glaucous gulls, Bjørnøya, Svalbard archipelago ...
Dead and dying glaucous gulls (Larus hyperboreus) were collected on Bjornoya in the Barents Sea in 2003, 2004 and 2005. Autopsies of the seabirds only explained a clear cause of death for three (14%) of the 21 birds. A total of 71% of the birds were emaciated. Liver and brain samples were analysed f...
Main Authors: | , , , , , , |
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Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2009
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Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.786530 https://doi.pangaea.de/10.1594/PANGAEA.786530 |
Summary: | Dead and dying glaucous gulls (Larus hyperboreus) were collected on Bjornoya in the Barents Sea in 2003, 2004 and 2005. Autopsies of the seabirds only explained a clear cause of death for three (14%) of the 21 birds. A total of 71% of the birds were emaciated. Liver and brain samples were analysed for organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ether (PBDEs), hexabromo-cyclododecanes (HBCDs) and mercury (Hg). High levels of OCPs, PCBs, PBDEs and alpha-HBCD were found in liver and brain. Compared to the dead and dying glaucous gulls found 1989, the congeners' composition tended to change toward more persistent compounds in the 2003-2005 samples. The brain levels of OCPs and PCBs did not differ between 1989 and 2003-2005, while the liver levels were significantly lower. The brain/liver ratio for PCB and PBDE significantly decreased with halogenations of the molecule, indicating a clear discrimination of highly halogenated PCBs and PBDEs entering the brain. There ... : Concentrations are given per gram lipid weight. Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ... |
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