Document Detail

Mercury concentrations in deer mouse (Peromyscus maniculatus) tissues from Isle Royale National Park.
MedLine Citation:
PMID:  11443999     Owner:  NLM     Status:  MEDLINE    
We used deer mice (Peromyscus maniculatus) to investigate variation in mercury exposure across the terrestrial ecosystem of Isle Royale National Park (Michigan, USA). Although previous work suggested that mercury (Hg) levels may be higher inside the Sargent Lake watershed of Isle Royale than outside the watershed, Hg concentrations in livers were higher outside the Sargent Lake watershed (100.13 ng Hg/g dry tissue) than inside the watershed (35.50 ng Hg/g dry tissue; P = 0.06). Mercury levels in kidneys did not differ significantly (P = 0.57) between samples collected outside (443.23 ng Hg/g dry tissue) and inside (360.62 ng Hg/g dry tissue) the Sargent Lake watershed. Mean Hg concentrations in the livers of mice at some sites in Isle Royale are not significantly lower (P = 0.62) than Hg concentrations considered by some government agencies to be unhealthy for human consumption. Although Hg concentrations in mouse tissues were not remarkably high (compared to heavily polluted sites), concern is warranted because: (1) Isle Royale National park is a protected area in a remote location; (2) any exposure in deer mice represents a path for biomagnification in the terrestrial food web; and (3) the source of this mercury remains unidentified.
L M Vucetich; J A Vucetich; L B Cleckner; P R Gorski; R O Peterson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  114     ISSN:  0269-7491     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2001  
Date Detail:
Created Date:  2001-07-10     Completed Date:  2001-12-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  113-8     Citation Subset:  IM    
School of Forestry, Michigan Technological University, Houghton, MI 49931, USA.
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MeSH Terms
Environmental Monitoring
Food Chain
Liver / chemistry
Mercury / pharmacokinetics*
Peromyscus / physiology*
Tissue Distribution
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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