Principal Investigator, Senior Scientist
443-482-2498
Specialty
Microbial Ecologist Research Labs
Staff Profile
Biography
Research Interests
I am a biogeochemist and microbial ecologist with special interest in mercury. My group focuses on the microbial mercury methylation process in cultures, sediments and soils. Our research includes mercury fate and transport at multiple scales and in many types of environments, isolation and characterization of Hg-methylating microbes, the bioavailability of Hg for microbial methylation, and novel approaches to remediation of contaminated sites.
Publications
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(2011). Dissolved Organic Matter in the Florida Everglades: Implications for Ecosystem Restoration. Critical Reviews in Environmental Science and Technology, 41 (6) , 217-248. http://dx.doi.org/10.1080/10643389.2010.530934
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(2011). Genome Sequence of Mercury-Methylating Desulfovibrio desulfuricans ND132 . Journal of Bacteriology, 193 (8) , 2078-2079. http://dx.doi.org/10.1128/JB.00170-11
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(2011). Genome Sequence of Mercury-Methylating and Pleomorphic Desulfovibrio africanus strain Walvis Bay . Journal of Bacteriology, 193 (15) , 4037-4038. http://dx.doi.org/10.1128/JB.05223-11
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(2011). Sulfate-Reducing Bacterium Desulfovibrio desulfuricans ND132 as a Model for Understanding Bacterial Mercury Methylation . Applied and Environmental Microbiology, 77 (12) , 3938-3951. http://dx.doi.org/10.1128/AEM.02993-10
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(2011). Sulfur in the South Florida Ecosystem: Distribution, Sources, Biogeochemistry, Impacts, and Management for Restoration . Critical Reviews in Environmental Science and Technology, 41 , 249-288. http://dx.doi.org/10.1080/10643389.2010.531201
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(2010). Mercury and methylmercury cycling in sediments of the mid-Atlantic continental shelf and slope . Limnology and Oceanography, 55 (6) , 2703-2722. http://dx.doi.org/10.4319/lo.2010.55.6.2703
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(2009). Distinct Microbial Behavior of Re Compared to Tc: Evidence Against Microbial Re Fixation in Aquatic Sediments. Geomicrobiology Journal, 26 (7) , 470-483. http://dx.doi.org/10.1080/01490450903060822
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(2009). Methylmercury production in sediments of Chesapeake Bay and the mid-Atlantic continental margin . Marine Chemistry, 114 (3-4) , 86-101. http://dx.doi.org/10.1016/j.marchem.2009.04.004
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(2008). Methylmercury production in a Chesapeake Bay salt marsh. Journal of Geophysical Research. G. Biogeosciences, 113 , G00C04. http://dx.doi.org/10.1029/2008JG000765
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(2008). Temporal changes in the distribution, methylation, and bioaccumulation of newly deposited mercury in an aquatic ecossytem. Environmental Pollution, 154 (1) , 77. http://dx.doi.org/10.1016/j.envpol.2007.12.030
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(2008). Temporal changes in the distribution, methylation, and bioaccumulation of newly deposited mercury in an aquatic ecosystem. Environmental Pollution, 154 (1) , 77-88. http://dx.doi.org/10.1016/j.envpol.2007.12.030
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(2007). Whole-ecosystem study shows rapid fish-mercury response to change in mercury deposition . Proceedings of the National Academy of Sciences of the United States of America, 104 , 16586-16591.
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(2007). Monitoring and evaluating trends in sediment and water. Ecosystem responses to mercury contamination: Indicators of change (47-86) CRC Press .
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(2007). Influence of dissolved organic matter on the complexation of mercury under sulfidic conditions . Environmental Toxicology and Chemistry, 26 (4) , 624-633. http://dx.doi.org/10.1897/06-375R.1
