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Environmental factors affecting Methylmercury in fish of the Laurentian Great Lakes region

Harvey, Joel
http://rave.ohiolink.edu/etdc/view?acc_num=wright1421076009

Abstract Details

2014, Master of Science (MS), Wright State University, Earth and Environmental Sciences.
Monomethylmercury (MMHg) can accumulate in fish to concentrations that pose a threat to the health of fish, piscivorous organisms, and humans who eat fish. A variety of environmental factors have been hypothesized to influence either the methylation of inorganic Hg or the bioaccumulation and magnification of MMHg. This study investigates the influence of selected environmental factors on MMHg concentrations in freshwater fish across a regional scale, most of the U.S. portion of Laurentian Great Lakes region. Fish MMHg was correlated with proton deposition, sulfate deposition, nitrate deposition, mercury deposition, pH, watershed area, and Secchi depth. Only proton deposition was positively correlated with MMHg concentrations in walleye, largemouth bass, and northern pike, underscoring the fundamental role played by protons in fish MMHg accumulation in the Great Lakes region. Lake water pH showed a significant correlation with fish MMHg only in Largemouth bass, suggesting proton deposition plays a role in Hg transport.
Chad Hammerschmidt, Ph.D. (Advisor)
David Dominic, Ph.D. (Committee Member)
Bruce Monson, Ph.D. (Committee Member)
Mark Sandheinrich, Ph.D. (Committee Member)
57 p.
Environmental Science
environmental science

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Citations

  • Harvey, J. (2014). Environmental factors affecting Methylmercury in fish of the Laurentian Great Lakes region [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1421076009

    APA Style (7th edition)

  • Harvey, Joel. Environmental factors affecting Methylmercury in fish of the Laurentian Great Lakes region . 2014. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1421076009.

    MLA Style (8th edition)

  • Harvey, Joel. "Environmental factors affecting Methylmercury in fish of the Laurentian Great Lakes region ." Master's thesis, Wright State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=wright1421076009

    Chicago Manual of Style (17th edition)

wright1421076009
707
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This open access ETD is published by Wright State University and OhioLINK.