Passive acoustic monitoring of freshwater ecosystems

Underwater microphones detected low-frequency "thunder" sounds from spawning lake sturgeon in the Detroit River, revealing their spawning timing and sensitivity to ship noise.

Emilie DeRochie coordinates the St. Lawrence River Strategy, fostering inclusive communication and collaboration between Indigenous communities and stakeholders along the river.

Anthropogenic noise from shipping and boating is an emerging stressor in the Great Lakes, masking fish communication and causing physiological stress, yet remains largely unregulated.

Fish in the Great Lakes produce a variety of sounds for communication and reproduction; bioacoustics offers a powerful tool to study their behavior, ecology, and responses to environmental change.

A 15-month acoustic recording in Lake Superior revealed seasonal soundscapes dominated by boat traffic in summer and ice cracking in winter, highlighting the need to monitor noise impacts on sensitive species.

Ali Reza Shahvaran uses remote sensing and satellite imagery to model and monitor algal blooms in western Lake Ontario, informing nutrient management and decision-making.

A review of Dan Egan's "The Devil's Element" examines the paradox of phosphorus as both a life-sustaining nutrient and a pollutant driving eutrophication in the Great Lakes.

A four-year pre-construction study in Lake Erie used passive acoustics and fish telemetry to evaluate the environmental impacts of an offshore wind project, setting a model for future energy development.