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Document Title:

Liver Contaminants in Bald Eagles Carcasses from Maine

AUTHOR(S):
Steven E. Mierzykowski Jacob E.M. Smith Charles S. Todd Daniel Kusnierz Christopher DeSorbo


REPORT NUMBER:
FY09-MEFO-6-EC
PAGES:
1 - 55

PUBLICATION DATE: December 2011

ABSTRACT:
In Maine, locations of moribund or dead bald eagles are regularly reported to biologists and game wardens and carcasses are immediately collected. Unless a law enforcement case is suspected, eagle carcasses are destined for the National Eagle Repository for use by Native Americans. Prior to shipping to the repository, 51 livers were extracted from bald eagle carcasses recovered throughout the state of Maine between 2001 and 2007. Livers were analyzed for organic and inorganic contaminants to provide state-specific baseline information related to Endangered Species Act post de-listing monitoring of the bald eagle. Residue burdens in livers are influenced by a variety of factors including the bird’s health, age, diet, and body condition. Sick, starving, and weakened birds will mobilize contaminants sequestered in body fat. The liver, as a detoxifying organ, will accumulate mobilized organic compounds and trace elements providing information on contaminant exposure. Region 5 Project ID: 1130-5F42 DEQ ID: 200650002.4

PUBLISHED BY:
U.S. Fish and Wildlife Service

DOCUMENT LINK:
http://www.fws.gov/northeast/mainecontaminants/pdf/5F42_LiversBAEA_FinalReport2011.pdf, 600 KB

ADDITIONAL LINKS:

U.S. Fish and Wildlife Service - Maine Contaminants Program

Last updated: February 13, 2013