title: Temporal variation in circulating concentrations of organochlorine pollutants in a pelagic seabird breeding in the high Arctic.
abstract: The present study explored short-term temporal variations in circulating concentrations of 3 legacy organochlorines with different physicochemical properties (polychlorinated biphenyl 153 [PCB-153], p,p'-dichlorodiphenyldichloroethylene [DDE], and hexachlorobenzene [HCB]) in breeding kittiwakes (Rissa tridactyla) in a colony in Svalbard (78°N), Norwegian Arctic. Concentrations were measured in blood of a large number (n = 412-521 blood samples, depending on the data analyses) of prebreeding, incubating, and chick-rearing birds over a period of 5 yr (2007-2011). The PCB-153 concentrations were equal in male and female blood in the prebreeding period, whereas females had significantly lower concentrations during incubation and chick rearing, probably because of their ability to eliminate organochlorines through egg laying. A similar temporal pattern was observed with DDE, although the lower concentrations in incubating females were not significant. Males and females had similar concentrations of HCB over all reproductive stages. The concentrations of all 3 compounds varied greatly between years. The concentrations of PCB-153 tended to decline over the study period, whereas concentrations of HCB showed an increasing trend, especially among chick-rearing males late in the season. Concentrations of PCB-153 increased approximately 2.5 times from the prebreeding to the chick-rearing period, concurrent with mobilization of body lipids (reduced body mass). A similar, but less pronounced trend was found for HCB. For DDE, however, kittiwakes had the highest concentrations in the prebreeding period, suggesting relatively high exposure in their winter areas. The present study documented large variations in circulating concentrations of legacy organochlorines among and within breeding seasons in kittiwakes, but the alterations within seasons were relatively consistent from year to year. Environ Toxicol Chem 2017;36:442-448. © 2016 SETAC.
authors.affiliation: Norwegian Institute for Nature Research, Arctic Ecology Department, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Jan O
authors.initials: JO
authors.lastname: Bustnes
authors.affiliation: Norwegian Institute for Nature Research, Arctic Ecology Department, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Bård-Jørgen
authors.initials: BJ
authors.lastname: Bårdsen
authors.affiliation: Norwegian Institute for Nature Research, Trondheim, Norway.
authors.forename: Børge
authors.initials: B
authors.lastname: Moe
authors.affiliation: Norwegian Institute for Air Research, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Dorte
authors.initials: D
authors.lastname: Herzke
authors.affiliation: Norwegian Institute for Nature Research, Arctic Ecology Department, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Sveinn A
authors.initials: SA
authors.lastname: Hanssen
authors.affiliation: Akvaplan-niva, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Kjetil
authors.initials: K
authors.lastname: Sagerup
authors.affiliation: Department of Biology, Faculty of Science and Technology, Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Claus
authors.initials: C
authors.lastname: Bech
authors.affiliation: Department of Biology, Faculty of Science and Technology, Norwegian University of Science and Technology, Trondheim, Norway.
authors.forename: Tore
authors.initials: T
authors.lastname: Nordstad
authors.affiliation: Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique, Villiers en Bois, Deux-Sevres, France.
authors.forename: Olivier
authors.initials: O
authors.lastname: Chastel
authors.affiliation: Centre d'Etudes Biologiques de Chizé, Centre National de la Recherche Scientifique, Villiers en Bois, Deux-Sevres, France.|Norwegian Polar Institute, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Sabrina
authors.initials: S
authors.lastname: Tartu
authors.affiliation: Norwegian Polar Institute, High North Research Centre on Climate and the Environment (FRAM), Tromsø, Norway.
authors.forename: Geir Wing
authors.initials: GW
authors.lastname: Gabrielsen
mesh_terms: D000818:Animals; D001110:Arctic Regions; D046091:Charadriiformes / Q000097:blood*; D003633:Dichlorodiphenyl Dichloroethylene / Q000097:blood; D004784:Environmental Monitoring / Q000379:methods*; D004785:Environmental Pollutants / Q000097:blood*; D005260:Female; D006581:Hexachlorobenzene / Q000097:blood; D006843:Hydrocarbons, Chlorinated / Q000097:blood*; D008297:Male; D009664:Norway; D011078:Polychlorinated Biphenyls / Q000097:blood; D012098:Reproduction; D012621:Seasons
chemical_list: D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D003633:Dichlorodiphenyl Dichloroethylene; D006581:Hexachlorobenzene; D011078:Polychlorinated Biphenyls
keywords: Kittiwake; Marine pollution; Organochlorines; Seasonal variation