Blood and feather concentrations of toxic elements in a Baltic and an Arctic seabird population

• Published in: Marine Pollution Bulletin
• Main Authors: Fenstad, Anette A., Bustnes, Jan O., Lierhagen, Syverin, Gabrielsen, Kristin M., Öst, Markus, Jaatinen, Kim, Hanssen, Sveinn A., Moe, Borge, Jenssen, Bjorn M., Krokje, Ase
• Other Authors: Tvärminne Zoological Station
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier Scientific Publ. Co 2020
• Subjects: Common eiders; Heavy metals; Pollution; Environmental exposure; Svalbard; EIDER SOMATERIA-MOLLISSIMA; HEAVY-METAL CONTAMINATION; NESTING COMMON EIDERS; AMERICAN SEA DUCKS; FRESH-WATER FISH; SURFACE SEDIMENTS; TRACE-ELEMENTS; OXIDATIVE STRESS; BIRD FEATHERS; MARINE BIRDS; 1172 Environmental sciences; 1181 Ecology; evolutionary biology; Arctic; Arctic Population; Somateria mollissima
• Online Access: http://hdl.handle.net/10138/309482

We report blood and feather concentrations of elements in the Baltic Sea and Arctic population of common eiders (Somateria mollissima). The endangered Baltic Sea population of eiders was demonstrably affected by element pollution in the 1990s. While blood concentrations of Hg were higher in Baltic breeding eiders, blood Se, As and Cd concentrations were higher in Arctic eiders. Blood concentrations of Pb, Cr, Zn and Cu did not differ between the two populations. While blood Pb concentrations had declined in Baltic eiders since the 1990s, Hg concentrations had not declined, and were above concentrations associated with adverse oxidative effects in other bird species. Inconsistent with blood concentrations, feather concentrations suggested that Pb, Zn, and Cd exposure was higher in Baltic eiders, and that Hg exposure was higher in Arctic eiders. Our study thus emphasizes the need for comprehensive evaluation of toxic element status, covering the annual cycle of a species. (C) 2016 Elsevier Ltd. All rights reserved. Peer reviewed