June 13th, 2023 @ 12 pm CT: MB Branch Webinar on “Long-term Trends in Riverine Nutrient Loads, Ratios and Streamflow in the Red-Assiniboine Basin”
What: MB Branch Webinar on “Long-term Trends in Riverine Nutrient Loads, Ratios and Streamflow in the Red-Assiniboine Basin”
When: June 13th, 2023 @ 12 pm CT
There is concern that climate change is altering the magnitude and frequency of high-flow runoff events in northern prairie rivers, potentially leading to changes in nutrient loadings. As the ratio of nitrogen to phosphorus in riverine ecosystems is sensitive to flow variability, long-term nutrient ratios may also be impacted by these changing hydroclimatic conditions. Our goal is to evaluate long-term (25-year) trends in riverine nutrient concentrations, loads and ratios in major rivers within the Red-Assiniboine Basin and determine if these trends are associated with streamflow. Based on assessments of nutrient concentration data from 10 river monitoring stations within the Red-Assiniboine Basin in Canada and the United States, we will present annual trends in total and dissolved nutrient loads and ratios. Findings will assist in targeting management actions by identifying rivers where changing nutrient concentrations, loads, and ratios may be influencing productivity in the Red River and in Lake Winnipeg.
Presenter: Amy B. White, Ph.D. Candidate, StrEAMS Lab, Department of Biology, University of Waterloo
Amy is a Master’s of Science student in the Department of Biology at the University of Waterloo. Her research focuses on nutrient retention in prairie streams receiving effluent from wastewater lagoons. She completed her undergraduate degree in Environmental Science at the University of Western Ontario.