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Environ Int

Title:		"Body mass, mercury exposure, biochemistry and untargeted metabolomics of incubating common eiders (Somateria mollissima) in three Baltic colonies"
Author(s):		Ma NL; Hansen M; Roland Therkildsen O; Kjaer Christensen T; Skjold Tjornlov R; Garbus SE; Lyngs P; Peng W; Lam SS; Kirstine Havnsoe Krogh A; Andersen-Ranberg E; Sondergaard J; Riget FF; Dietz R; Sonne C;
Address:		"Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China; Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia. Electronic address: nyukling@umt.edu.my. Aarhus University, Department of Environmental Science, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Electronic address: martin.hansen@envs.au.dk. Aarhus University, Department of Bioscience, Grenavej 14, DK-8410 Ronde, Denmark. Electronic address: oth@bios.au.dk. Aarhus University, Department of Bioscience, Grenavej 14, DK-8410 Ronde, Denmark. Electronic address: tk@bios.au.dk. Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Electronic address: rst@bios.au.dk. Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Christianso Scientific Field Station, Christianso 97, DK-3760 Gudhjem, Denmark. Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China. Pyrolysis Technology Research Group, Institute of Tropical Aquaculture and Fisheries (AKUATROP) & Institute of Tropical Biodiversity and Sustainable Development (Bio-D Tropika), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia. Electronic address: lam@umt.edu.my. University of Copenhagen, Faculty of Health and Medical Sciences, Department of Veterinary Clinical Sciences, Dyrlaegevej 16, DK-1870 Frederiksberg C, Denmark. Electronic address: akrk@sund.ku.dk. University of Copenhagen, Faculty of Health and Medical Sciences, Department of Veterinary Clinical Sciences, Dyrlaegevej 16, DK-1870 Frederiksberg C, Denmark. Electronic address: emilie.ranberg@sund.ku.dk. Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Electronic address: js@bios.au.dk. Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Electronic address: ffr@bios.au.dk. Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark. Electronic address: rdi@bios.au.dk. Aarhus University, Department of Bioscience, Arctic Research Centre (ARC), Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark; Henan Province Engineering Research Center for Biomass Value-added Products, School of Forestry, Henan Agricultural University, Zhengzhou 450002, China. Electronic address: cs@bios.au.dk"
Journal Title:		Environ Int
Year:		2020
Volume:		20200623
Issue:
Page Number:		105866 -
DOI:		10.1016/j.envint.2020.105866
ISSN/ISBN:		1873-6750 (Electronic) 0160-4120 (Linking)
Abstract:		"The Baltic/Wadden Sea Flyway of common eiders has declined over the past three decades. Multiple factors such as contaminant exposure, global warming, hunting, white-tailed eagle predation, decreased agricultural eutrophication and infectious diseases have been suggested to explain the decline. We collected information on body mass, mercury (Hg) concentration, biochemistry and untargeted metabolomics of incubating birds in two colonies in the Danish Straits (Hov Ron, n = 100; Agerso, n = 29) and in one colony in the Baltic proper (Christianso, n = 23) to look into their metabolisms and energy balance. Body mass was available from early and late incubation for Hov Ron and Christianso, showing a significant decline (25-30%) in both colonies with late body mass at Christianso being the lowest. Whole blood concentrations of total mercury Hg were significantly higher in birds at Christianso in the east compared to Hov Ron in the west. All birds in the three colonies had Hg concentrations in the range of /=1, p
Keywords:		Animals Aquatic Organisms Birds *Ducks *Mercury/toxicity Metabolomics Fasting Fitness Mercury Physiology Reproduction Untargeted metabolomics;
Notes:		"MedlineMa, Nyuk Ling Hansen, Martin Roland Therkildsen, Ole Kjaer Christensen, Thomas Skjold Tjornlov, Rune Garbus, Svend-Erik Lyngs, Peter Peng, Wanxi Lam, Su Shiung Kirstine Havnsoe Krogh, Anne Andersen-Ranberg, Emilie Sondergaard, Jens Riget, Frank F Dietz, Rune Sonne, Christian eng Research Support, Non-U.S. Gov't Netherlands 2020/06/27 Environ Int. 2020 Sep; 142:105866. doi: 10.1016/j.envint.2020.105866. Epub 2020 Jun 23"