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Title

Spatial Trends and Factors Affecting Mercury Bioaccumulation in Freshwater Fishes of Washington State, USA. Article in Archives of Environmental Contamination and Toxicology.

 
Publication number Date Published
13-03-027June 2013
VIEW NOW: Spatial Trends and Factors Affecting Mercury Bioaccumulation in Freshwater Fishes of Washington State, USA. Article in Archives of Environmental Contamination and Toxicology. (Number of pages: 1) (Publication Size: 6KB)
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Author(s) Mathieu, C., C. Furl, T. Roberts, and M. Friese
Description Twenty-four lakes in Washington State were sampled for largemouth and smallmouth bass and water chemistry parameters during 2005-2009 to evaluate trends in mercury concentrations. We analyzed spatial patterns in bass mercury levels across a gradient of land and climate types, lake chemistry parameters, and physical watershed characteristics in order to identify factors influencing mercury bioaccumulation. Across the state, bass mercury levels followed rainfall patterns and were statistically higher on the coastal west side of the state and lower in the drier eastern region. Results indicated that annual watershed precipitation and lake alkalinity were the most important variables explaining bass mercury levels throughout the study lakes.

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Contact Callie Mathieu at 360-407-6965 or callie.mathieu@ecy.wa.gov
Keywords bioaccumulation, Washington State, water chemistry, fish tissue, precipitation, mercury
WEB PAGE Abstract of journal article
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