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Rapid increases in mercury concentrations in the eggs of mallards fed methylmercury

Environmental Toxicology and Chemistry

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Abstract

To determine how quickly breeding birds would have to feed in a mercury-contaminated area before harmful concentrations of mercury, as methylmercury, built up in their eggs, we fed female mallards (Anas platyrhynchos) a control diet or diets containing 0.5, 1, 2, 4, or 8 μg/g mercury (on what was close to a dry weight basis) as methylmercury chloride for 23 d. After 18 d on their respective mercury diets, the eggs of mallards fed 0.5, 1, 2, 4, or 8 μg/g mercury contained 97.8, 86.0, 89.9, 88.9, and 85.9%, respectively, of the peak concentrations reached after 23 d. Depending on the dietary concentration of mercury, no more than approximately a week may be required for harmful concentrations (0.5–0.8 μg/g, wet weight) to be excreted into eggs.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Rapid increases in mercury concentrations in the eggs of mallards fed methylmercury
Series title:
Environmental Toxicology and Chemistry
Volume
28
Issue:
9
Year Published:
2009
Language:
English
Publisher:
Society of Environmental Toxicology and Chemistry
Publisher location:
Brussels, Belgium
Contributing office(s):
Patuxent Wildlife Research Center
Description:
3 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Toxicology and Chemistry
First page:
1979
Last page:
1981
Number of Pages:
3