Elevated mercury levels in a wintering population of common eiders (Somateria mollissima) in the northeastern United States
•Eiders in Plum Island Sound had significantly higher blood Hg than other locations.•Blood Hg levels from Plum Island Sound are the highest reported for this species.•Prey item Hg levels from capture locations were also highest in Plum Island Sound.•Significant relationship between eider and mussel...
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Published in: | Marine pollution bulletin Vol. 86; no. 1-2; pp. 229 - 237 |
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Main Authors: | , , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Kidlington
Elsevier Ltd
15-09-2014
Elsevier |
Subjects: | |
Online Access: | Get full text |
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Summary: | •Eiders in Plum Island Sound had significantly higher blood Hg than other locations.•Blood Hg levels from Plum Island Sound are the highest reported for this species.•Prey item Hg levels from capture locations were also highest in Plum Island Sound.•Significant relationship between eider and mussel Hg in Maine and Massachusetts.
In North America and Europe, sea ducks are important indicators of ecological health and inshore marine pollution. To explore spatial variation in mercury accumulation in common eiders in the northeastern United States, we compared concentrations of total mercury in common eider blood at several New England locations between 1998 and 2013. Eider food items (mollusks) were collected and analyzed to determine if mercury concentrations in eider blood were indicative of local mercury bioavailability. Eiders from Plum Island Sound, MA had a significantly higher mean blood mercury concentration (0.83μg/g) than those in other locations. Mean mercury levels in this population were also nearly three times higher than any blood mercury concentrations reported for common eiders in published literature. We observed consistent patterns in eider blood mercury and blue mussel mercury concentrations between sites, suggesting a tentative predictive quality between the two species. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0025-326X 1879-3363 |
DOI: | 10.1016/j.marpolbul.2014.07.015 |