Persistent organic pollutants,heavy metals and parasites in the glaucous gull (Larus hyperboreus) on Spitsbergen |
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| Authors: | Kjetil Sagerup Vladimir Savinov Tatiana Savinova Vadim Kuklin Derek C.G. Muir Geir W. Gabrielsen |
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| Affiliation: | 1. Centre d''Etudes Biologiques de Chizé (CEBC), UMR 7372 – CNRS & Université de la, Rochelle, 79360 Villiers-en-Bois, France;2. Littoral Environnement et Sociétés (LIENSs), UMR 7266 – CNRS & Université de la, Rochelle, 17000 La Rochelle, France;3. Norwegian Institute for Air Research, NILU, Fram Centre, NO 9296 Tromsø, Norway;4. Norwegian Institute for Nature Research, NINA, Høgskoleringen 9, NO 7034 Trondheim, Norway;5. Department of Biology, Norwegian University of Science and Technology, NO 7491, Trondheim, Norway;6. Norwegian Polar Research Institute, Fram Centre, NO 9296 Tromsø, Norway;7. Norwegian Institute for Nature Research, NINA, Fram Centre, NO 9296 Tromsø, Norway;1. Department of Biology, Carleton University, Ottawa, Ontario K1S 5B6, Canada;2. Environment Canada, Science and Technology Branch, Raven Road, Carleton University, Ottawa, Ontario K1S 5 B6, Canada;3. Biology Department, Acadia University, 33 Westwood Avenue, Wolfville, Nova Scotia B4P 2R6, Canada |
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| Abstract: | The prediction of a higher parasite infection as a consequence of an impaired immune system with increasing persistent organic pollution (POP) and heavy metal levels were investigated in adult glaucous gull (Larus hyperboreus) from Svalbard. The levels of chlorinated pesticides, polychlorinated biphenyls (PCBs), toxaphenes and polybrominated diphenyl ethers (PBDEs) were measured in liver. Cupper, cadmium, lead, mercury, selenium and zinc were measured in kidney samples. An elevated ratio of PCB-118 was found, suggesting that local contamination from the settlement was detectable in the glaucous gull. Eight cestodes, four nematodes, two acanthocephalan and three trematode helminth species were found in the intestine. A positive correlation was found between cestode intensities and selenium levels and between acanthocephalan intensities and mercury levels. No correlation was found between parasite intensities and POP concentrations. It is concluded that the contaminant levels found in glaucous gulls do not cause immune suppression severe enough to affect parasite intensity. |
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