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Organochlorine and mercury residues in canvasback duck eggs, 1972-73

Journal of Wildlife Management

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Abstract

Eggs of canvasback ducks (Aythya valisineria) from several major breeding areas were analyzed for organochlorine and mercury residues. Polychlorinated biphenyls (PCBs) were detected in 96 of 97 eggs, in concentrations up to 29 ppm (wet wt.). DDE occurred in 79 percent of the samples with a maximum residue of 12 ppm (wet wt.). DDT, DDD, dieldrin, hexachlorobenzene, cis-chlordane, heptachlor epoxide, and oxychlordane were detected less frequently. Mercury was detected in only 6 of 34 eggs analyzed. Most of the eggs contained concentrations of organochlorines and mercury below levels known to cause adverse effects on avian survival or reproduction.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Organochlorine and mercury residues in canvasback duck eggs, 1972-73
Series title:
Journal of Wildlife Management
Volume
41
Issue:
3
Year Published:
1977
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
453-457
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Management
First page:
453
Last page:
457