Past Graduate Research Fellows
Project Focus Area: Nutrient Dynamics (Eutrophication) and Pollution
Emily Seldomridge, Ph.D.
2009-2011
University of Maryland, College Park
Department of Geology Graduate Program
Title: Measurement of hydraulic and geomorphic influences on nitrate retention in freshwater tidal marshes, Patuxent River, MD
Dissertation:
Seldomridge, Emily. Geomorphic, hydraulic, and biogeochemical controls on nitrate retention in tidal freshwater marshes. PhD Dissertation. University of Maryland, College Park. 2012.
Thesis:
Seldomridge, Emily. Importance of Channel Networks on nitrate retention in freshwater wetlands, Patuxent River, Maryland. M.S. Thesis. University of Maryland, College Park. 2009. Print.
Michael Castellano
2007-2010
Pennsylvania State University, Department of Crops and Soil Science
Soil Science Graduate Program
Title: Using Soil Properties a a Framework for Understanding Nutrient Transport and Transformation at the Terrestrial-Aquatic Estuarine Interface
Publications:
Castellano, M.J. and J.P. Kaye. 2009. Global within-site variance in soil solution nitrogen and hydraulic conductivity are correlated with clay content. Ecosystems 12: 1343-1351.
Benjamin M. Fertig, Ph.D.
2006-2009
University of Maryland, Horn Point Laboratory
Marine-Estuarine-Environmental Science Graduate Program
Title: Connecting monitoring, long-term, and broad-scale water quality datasets through an estuarine biological indicator of nitrogen source: d15N in Crassostrea virginica tissues
Reports:
Fertig, B., T. Carruthers, and W. Dennison. 2009. Connecting monitoring, long-term, and broad-scale water quality datasets through an estuarine biological indicator of nitrogen source: delta-15N in Crassostrea virginica tissues. Final Report. Integration and Application Network. University of Maryland Center for Environmental Science, Cambridge, Maryland.
Publications:
Fertig, B.M., T.J.B. Carruthers, W.C. Dennison. 2012, accepted manuscript. Oyster δ15N as a bioindicator of potential wastewater and poultry farming impacts and degraded water quality in a sub-estuary of Chesapeake Bay. In-press: Journal of Coastal Research.
Fertig, B.M., T.J.B. Carruthers, W.C. Dennison, E.J. Fertig, and M.A. Altabet. 2010. Eastern oyster (Crassostrea virginica) δ15N as a bioindicator of nitrogen sources: Observations and modeling. Marine Pollution Bulletin 60(8):1288-1298.
Jennifer Zelenke, Ph.D.
1997-1999
University of Maryland, Horn Point Laboratory
Center for Environmental and Estuarine Studies
Title: Denitrification in the Maryland NERR: Nitrate sources and marsh types
Publication:
Zelenke, J.L., J. Stevenson and J.C. Cornwell. 1994. Deposition of inorganic and organic phosphorus in Maryland tidal marshes: a preliminary analysis. In: Toward a Sustainable Coastal Watershed: The Chesapeake Experiment. Proceedings of a Conference. Chesapeake Research Consortium Publication No. 149 pp. 630-633.
Report:
Zelenke, J.L. and J.C. Cornwell. 1996. Sediment accretion and composition in four marshes of the Chesapeake Bay. Final Report. Horn Point Environmental Laboratory, University of Maryland Center for Environmental and Estuarine Studies, Cambridge, Maryland.
Jude Apple, Ph.D.
2000-2003
University of Maryland
Marine-Estuarine-Environmental Science Graduate Program
Title: Linking anthropogenic nutrient inputs to microbially mediated nutrient cycling in coastal ecosystems
Publications:
Apple, J.K., E.M. Smith, and T.J. Boyd. 2008. Temperature, salinity, and nutrients, and the covariation of bacterial production and chlorophyll-a in estuarine ecosystems. Journal of Coastal Research 55: 59-75.
Apple, J.K. and P.A. del Giorgio. 2007. Organic substrate quality as the link between bacterioplankton carbon demand and growth efficiency in a temperate salt-marsh estuary. The International Society for Microbial Ecology 1: 729-742.
Apple, J.K., P.A. del Giorgio, and W.M. Kemp. 2006. Temperature regulation of bacterial production, respiration, and growth efficiency in a temperate salt-marsh estuary. Aquatic Microbial Ecology 43: 243-254.
Apple, J.K., P.A. del Giorgio, and R.I.E. Newell. 2004. The effects of system-level nutrient enrichment on bacterioplankton production in a tidally-influenced estuary. Journal of Coastal Research 45: 110-133.
Kitty Fielding, M.S.
2001-2002
University of Maryland
Marine-Estuarine-Environmental Science Graduate Program
Title: The effects of different nutrient loading on phytoplankton biomass and composition in three contrasting creeks of Monie Bay, Chesapeake Bay, MD
Karen Phemister, M.S.
2003-2005
University of Maryland, College Park
Department of Geology Graduate Program
Title: Characterization of the spatial differences in hydrologic functioning in a tidal marsh, Patuxent River, MD: A framework for understanding nutrient dynamics
Thesis:
Phemister, K.E. Characterization of the spatial differences in hydrological functioning in a tidal marsh, Patuxent River, MD: A framework for understanding nutrient dynamics. M.S. Thesis. University of Maryland, College Park. 2004.
Jeanne Hartzell, Ph.D.
2005-2006
George Mason University
Environmental Science and Policy
Title: Phosphorous dynamics in estuarine sediments
Jeremy Testa, M.S.
2005-2006
University of Maryland, Horn Point Laboratory
Marine-Estuarine-Environmental Science Graduate Program
Title: Water quality and nutrient cycling in the Patuxent River estuary: Assessing the role of tidal marshes
Publications:
Testa, J.M. et al. 2008. Long-term changes in water quality and productivity in the Patuxent River Estuary: 1985 to 2003. Estuaries and Coasts 13: 1021-1037.
Thesis:
Testa, J.M. Factors regulating variability in water quality and net biogeochemical fluxes in the Patuxent River Estuary. M.S. Thesis. University of Maryland, College Park. 2006.
