Investigators at CIRC seek to understand how carbon cycles through aquatic systems. Determining stream trophic status (heterotrophic versus autotrophic) is a tool which may be used to better understand carbon cycling in streams.
In many north temperate and boreal surface waters terrestrial organic matter (tOM) inputs have increased over the past several decades. Increased tOM alters lake ecosystem functions by limiting light and introducing nutrients.
My research focuses on urban stream ecology and my current project is focusing on the impact that long culverts (or pipes) have on various aspects of the stream ecosystem including benthic algae, macroinvertebrates, and oxygen dynamics.
Broadly, I am interested in the relationship between lake catchment characteristics and lake ecosystem structure and function, and how this relationship may further our understanding of the contribution of lake ecosystems to biogeochemical cycles.
The goal of this research is to understand the DIC dynamics in boreal lakes and their impact on net carbon dioxide emission. Arctic and boreal lakes play an influential role in the global carbon cycle.
Sarah Burnet is pursuing her Ph.D. in Fish and Wildlife Sciences at the University of Idaho. Her Ph.D. research is focused on the relationships between sediment type, particle size, iron availability, and dissolved oxygen concentrations in the release of phosphorus.