My research examines the extent of human impact on freshwater ecosystems, and evaluates the ecological response within these types of systems to anthropogenic and natural stressors. I use a variety of ecological and paleolimnological techniques to address my research questions.
My specific research interests and expertise are outlined below.
Response of primary producer communities to environmental stressors
Primary producers play a key role in ecosystem structure and function, and can be influenced by a multitude of top-down and bottom-up processes. Much of my previous research has sought to investigate algal responses, as assessed through diatom assemblage changes and photosynthetic pigment analyses, to natural and anthropogenic stressors on various temporal and spatial scales.
Contamination histories of freshwater lakes
Current and past research has included investigations into contamination of freshwater systems of southern Siberia. Investigations have included temporal and spatial analyses of trace metals and elements, persistent organic pollutants, and spheroidal carbonaceous particles (SCPs) to determine extent and trends in human impact.
Emerging contaminant of concern - Microplastics
Part of addressing anthropogenic impact is understanding the current threats to freshwater systems, particularly for those emerging contaminants of concern. In this way, my current post-doctoral research aims to better understand the current and past threat of microplastic pollution to Canadian aquatic systems, including urban and remote freshwater, and remote marine systems. My research investigates the presence, sources, transport, and fate of microplastics within Canada.