Chris Pressey
Underwater robots help Great Lakes scientists collect data during pandemic

Tracking more than 30 years of phytoplankton blooms in Lake Winnipeg

The effect of different nitrogenous compounds on cyanobacteria physiology and toxin production

Intensive agricultural lands feed into Canada’s Great Lakes. The primary type of nitrogen used in agriculture has changed over time, shifting from organic to inorganic forms, such as urea. This change has corresponded with an increase in the frequency, magnitude, and duration of phytoplankton blooms, including cyanobacteria that are known to produce toxins harmful to life.…
Understanding the distribution and presence of different cyanotoxins in Ontario waters

Cyanobacteria, algae that form on the surface of nutrient-rich waters, can produce an array of toxins. Accurately measuring these toxins in waterbodies is crucial because they can pose risks to human health and other biological communities. Unfortunately, monitoring and research of these toxins has focused almost exclusively on one particular compound—microcystins.…
Atlantic salmon restoration in Lake Ontario

Atlantic salmon were historically abundant in Lake Ontario, but their populations disappeared from the lake more than a century ago. Management agencies and conservation groups have made restoring Atlantic salmon in Lake Ontario a top priority. This project will investigate two key factors that may affect the success of these programs – a high thiamine diet from exotic prey species and warming water temperatures due to climate change.…
Evaluating Microbial Nutrient Sediment Dynamics in Lake Erie Watersheds

Investigating Fish Connectivity in the Rideau Canal Waterway to Inform Conservation Decisions
Evaluating stationary hydroacoustics for determining fish movement and abundance

Black Bay Walleye Acoustic Telemetry
