Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea

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http://hdl.handle.net/10138/317225

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Lam , S S , McPartland , M , Noori , B , Garbus , S-E , Lierhagen , S , Lyngs , P , Dietz , R , Therkildsen , O R , Christensen , T K , Tjørnløv , R S , Kanstrup , N , Fox , A D , Sørensen , I H , Arzel , C , Krøkje , Å & Sonne , C 2020 , ' Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea ' , Environment International , vol. 137 , 105582 . https://doi.org/10.1016/j.envint.2020.105582

Title: Lead concentrations in blood from incubating common eiders (Somateria mollissima) in the Baltic Sea
Author: Lam, Su Shiung; McPartland, Molly; Noori, Brenley; Garbus, Svend-Erik; Lierhagen, Syverin; Lyngs, Peter; Dietz, Rune; Therkildsen, Ole Roland; Christensen, Thomas Kjær; Tjørnløv, Rune Skjold; Kanstrup, Niels; Fox, Anthony D.; Sørensen, Iben Hove; Arzel, Céline; Krøkje, Åse; Sonne, Christian
Contributor: University of Helsinki, Department of Forest Sciences
Date: 2020-04
Language: eng
Number of pages: 8
Belongs to series: Environment International
ISSN: 0160-4120
URI: http://hdl.handle.net/10138/317225
Abstract: Here we investigate if lead may be a contributing factor to the observed population decline in a Baltic colony of incubating eiders (Somateria mollissima). Body mass and blood samples were obtained from 50 incubating female eiders at the Baltic breeding colony on Christiansø during spring 2017 (n = 27) and 2018 (n = 23). All the females were sampled twice during early (day 4) and late (day 24) incubation. The full blood was analysed for lead to investigate if the concentrations exceeded toxic thresholds or changed over the incubation period due to remobilisation from bones and liver tissue. Body mass, hatch date and number of chicks were also analysed with respect to lead concentrations. The body mass (mean ± SD g) increased significantly in the order: day 24 in 2018 (1561 ± 154 g) 
Subject: 1172 Environmental sciences
Avian
Emaciation
Food depletion
Parasite infection
Starvation
Waterfowl
MORTALITY EVENT
AMMUNITION
TRACE-ELEMENTS
PB
SPECTACLED EIDERS
EXPOSURE
BIRDS
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