My research interests centre on processes that affect (1) the stability of aquatic communities and ecosystems, and (2) relationships between sustainable growth and water quality and quantity. I am particularly interested in the role of biota and their interactions on the flux of energy and materials in food webs. My NSERC sponsored research considers the role of rooted aquatic macrophtyes and food web structure on the state in which shallow prairie lakes are found. Macrophytes may be stabilizing components of shallow lakes that allow them to exist in a relatively clear state. However, macrophyte biomass is also correlated to the rate and occurrence of winter anoxia, with implications to fish populations. Collaborative research is examining water quality and quantity in South Saskatchewan headwater rivers, and how this might change with future development. Ecologic and economic models will be coupled to create an expert system to allow evaluation of "what if" scenarios of change in light of full-cost accounting. This project considers land use and the delivery of material to rivers, as well as in-stream processes by biota.In addition to these research foci, I am also the Scientific Director of Advancing Canadian Wastewater Assets, a $38.6 Million research infrastructure project that seeks to develpo and test new wastewater treatment techologies to remove existing and new contaminants from municipal wastewater and demonstrate the technology's efficacy via analytical chemistry and through measuring environmental responses in 12 constructed, naturalized, experimental streams. Follow the link below to learn more of ACWA, its principal investigators and industrial partners.