M. Robert Hamersley

rhamersley@umassd.edu

2002 Ph.D. Biological Oceanography, Massachusetts Institute of Technology / Woods Hole Oceanographic Institution.

1996 M.E.Des. Environmental Science, University of Calgary.

1991 B.Sc. Biology, University of Victoria.

Research Interests

• Denitrification, nitrification
• Wetlands
• Linkages between carbon, oxygen, and nutrient cycling
• Plant/microbe nutrient competition
• Sediment metabolism
• Organic carbon degradation
• Artificial wetlands for water treatment

Research Publications

In press. Hamersley, M.R. and B.L. Howes. Contribution of denitrification to N, C, and O cycling in sediments of a New England salt marsh. Marine Ecological Progress Series.

2003 Hamersley, M.R., Howes, B.L. and D.S. White. Particulates not plants dominate nitrogen processing in a septage-treating wetland. Journal of Environmental Quality In press.

2002 Hamersley, M.R. and B.L. Howes. Control of denitrification in a septage-treating artificial wetland: The dual role of particulate organic carbon. Water Research 36:4416-4428.

2001 Hamersley, M.R., Howes, B.L., White, D.S., Johnke, S., Young, D., Peterson, S.B. and J.M. Teal. Nitrogen balance and cycling in an ecologically engineered septage treatment system. Ecological Engineering 18:61-75.

Publications In Submission

Hamersley, M.R. and B.L. Howes. Coupled nitrification-denitrification measured in situ in vegetated salt marsh sediments using a nitrogen-15 ammonium tracer. In submission to Limnology and Oceanography.

Hamersley, M.R. and B.L. Howes. An evaluation of the N₂ flux approach for measuring sediment denitrification. In submission to Estuarine, Coastal, and Shelf Science.