The Real-Time Aquatic Ecosystem Observation Network (RAEON) provides the infrastructure, staff and data management that Canadian researchers need to carry out cutting-edge, integrated and transformative research on the Great Lakes. RAEON improves understanding of the mechanisms and processes of large lake ecosystems and contributes to the management, rehabilitation and enhancement of their ecosystem services.

Recent Tweets


@GLATOS_Fish Director Emeritus Dr. Charles Krueger discusses how telemetry is being used to address management needs in the Great Lakes and Midwest, check it out! Please RT

Thank you so much to @RAEON_ @LeadleyTodd @DonUzarski @fisk_lab Matt Anderson, Katelynn Johnson and Neil Porter! Buoy retrieval success!

Some pics from fieldwork earlier today in a brook trout steam west of Peterborough. Thanks to @RAEON_ for the temperature loggers.

Buoy season is coming to an end. A bit of biofouling on this one! @ErieWatch

Researchers at the Real-Time Aquatic Ecosystem Observation Network @Raeon_ have worked with partner institutions in the US to deploy an autonomous underwater vehicle. The AUV is being used to study harmful algal blooms and low oxygen levels in Lake Erie.

Underwater robots help Great Lakes scientists collect data during pandemic

The Real-Time Aquatic Ecosystem Observation Network is using a robotic glider to detect harmful algal blooms and areas of low oxygen in Lake Erie.

Loving the RCM blues. 6 months underwater, covered in zebra mussels, and the data is still great! Thanks to @RAEON_ @LeadleyTodd, Neil Porter and grad student Yu Ting Chen for all their hard work! 1 down, 1 to go...

The final touches done on our ⁦@RAEON_⁩ fish transportation trailer we intend to use for a host of transport stress studies for #endangered species with ⁦@FishOceansCAN⁩ & economically important fish with ⁦@FishWildlifeON⁩ Fish Culture Section

First mission complete! Slocum glider Cormorant was recovered this morning after a 15-day mission to collect data in western Lake Erie. The glider picked up low oxygen signals and will provide data to compare with current models of the lake. @ScienceUWindsor @TeledyneMarine

Don't forget, you can check out our live buoys via @GLOS

Nice to see another of our #slocumgliders is off doing important work! Thanks @RAEON_ for sharing a glimpse of Cormorant(?) as it heads off to do its work! Safe travels @TeledyneMarine

Maiden voyage of the cormorant in Lake Erie today! HUGE thanks to @USGS @CIGLR_UM @eriefishdoc @NOAA_GLERL for the support. The cormorant will be collecting various water quality measurements throughout the month of Sept. Stay tuned for updates. @ScienceUWindsor @TeledyneMarine

Back at it on Lake Erie! 1/3 buoys deployed to support hypoxia modelling @NOAA_GLERL @fisk_lab @ScienceUWindsor @RealGLOS @ErieWatch

Underwater robots help Great Lakes scientists collect data during pandemic
By Sarah Scheili University of Windsor. While COVID restrictions have made scientific fieldwork in the Great Lakes difficult, researchers at the University of Windsor have continued to gather vital data using an underwater robot. Researchers at the Real-Time Aquatic Ecosystem Observation Network (RAEON) have worked with partner institutions in the United States to deploy an ...
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Harmful algal blooms (HABs) and the low dissolved oxygen concentrations associated with them are a growing concern for large water bodies throughout the world. HABs have resulted in fish kills and drinking water advisories, which collectively have caused estimated economic losses of up to US$71 million per year within Lake Erie alone. HABs have been ...
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Text a buoy and it’ll text you back: Making Lake Erie the most connected Great Lake
Laura Johnston, – October 9 2019 CLEVELAND, Ohio – The biggest wave in Lake Erie this past summer topped 11 feet. The highest water temperature reached nearly 80 degrees. That’s according to data from a smart buoy near Cleveland’s water intake crib, about 3 miles north of the downtown shore. Lake Erie has about ...
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Have you seen this buoy? Windsor scientist hoping to recover data, scientific equipment
CBC News Jonathan Pinto – August 8, 2019 A University of Windsor professor is missing a high-tech scientific research buoy used for studying Lake Erie algal blooms. On Wednesday, Jill Crossman was on western Lake Erie as part of the annual “HABs Grab” — an international scientific endeavour that saw scientists collect roughly 200 water ...
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Great Lakes Data
RAEON Data Portal

Data Portal

RAEON researcher data upload
RAEON Deployment Map

Deployment Map

Ongoing/archived RAEON equipment deployments

Equipment Availability & Data Sharing

List of available RAEON equipment + equipment loan & data sharing forms.

RAEON Projects

Tracking more than 30 years of phytoplankton blooms in Lake Winnipeg
Lake Winnipeg —one of North America’s Great Lakes — recently has been labeled one of the most threatened lakes in the world because of increased…
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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…
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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…
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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…
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Evaluating Microbial Nutrient Sediment Dynamics in Lake Erie Watersheds
A primary goal of water quality managers is to intercept or mitigate nutrients or pathogens at their source to ensure effective wastewater treatment. Source water…
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Investigating Fish Connectivity in the Rideau Canal Waterway to Inform Conservation Decisions
By: Jordanna N. Bergman, PhD Student, Carleton University and Steven J. Cooke, Professor, Carleton University The Rideau Canal Waterway, located in eastern Ontario, forms a…
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Evaluating stationary hydroacoustics for determining fish movement and abundance
Little is known about the large-scale movement patterns of Great Lakes fishes. Though it is understood that large migrations of fish typically occur along regions…
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Black Bay Walleye Acoustic Telemetry
Located on the north shore of Lake Superior, Black Bay historically supported a robust commercial and recreational fishery for walleye (Sander vitreus). Unfortunately, the walleye…
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Using the REASON (River Environment And Sensor Observation Network) Project to Support Adaptive Management of the Saint Lawrence River
A regional water problem is the paucity of data to support policy decisions on water quality in the International Section of the St. Lawrence River.…
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Monitoring flood water in the Detroit River
Great Lakes water levels have reached record highs in 2019, eroding shorelines, threatening and damaging public/private infrastructure (e.g., marinas, homes and cottages), and overwhelming water…
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Participating Universities

University of Windsor Logo
Carleton University Logo
University of Saskatchewan Logo
Western University Canada Logo
Trent University Logo

Sources of Funding

Ontario Research Fund LogoCanada Foundation for Innovation Logo

Get In Touch

Great Lakes Institute for Environmental Research
University of Windsor
2990 Riverside Drive West
Windsor, Ontario, N9C 1A2