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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.


Following the leadership of The University of Windsor, RAEON is equally committed to ensuring that researchers involved in the network are provided with an equitable, diverse, and inclusive (EDI) environment.

Recent Tweets


😍 bring on the data!

It's been an exciting season working with @DFO_Science! Collaboration has been key in making these missions happen. We've learned a lot from gliding in Lake Ontario and will certainly build on the knowledge (and data!) we've gained 🍁

Late season maintenance on some @Innovasea aquaMeasure sensors in @RealLakeErie. Just a bit of biofouling! #quaggamussels #zebramussels. These sensors communicate acoustically with our buoys & send water quality data in real-time.

@RAEON_ @CIGLR_UM @USGS Late posting, but here is the @TeledyneMarine Sturgeon being retrieved from #LakeOntario Monday by our @uofg co-op student Eve. #gliders

🌊🌊 Big waves at several buoys yesterday and today.

A few to watch right now:
Mich. City: https://t.co/9hsEfxau0s
Milwaukee: https://t.co/1CKwFMTkBZ
Cook Nuclear: https://t.co/g6U9ILylKX
Southern Lake Huron: https://t.co/NjkjKgoW9s


Alright this may be our favorite video yet. From the #LakeMichigan #MichiganCity buoy, 45170, September 22, 2021 around 10 am Central Time. Serious dramamine warning. This is not a drill.

cc @ILINSeaGrant @PurdueFNR @TroyLab_Purdue @NWSIWX @LimnoTech @indianadunes

PLEASE R/T.. scholarship announcement https://t.co/PrYS0W4SGe

All hands on deck for glider ops! Yesterday, @CIGLR_UM and @USGS deployed Mary Lou in Hammond Bay for acoustic telemetry range tests. For a few hours, we had three RAEON gliders in three different Great Lakes 💪🏼 before recovering Sturgeon from Lake Ontario after 2.5 weeks.

NEXT, we drove home to prep the #glider for #LakeErie! What an amazing team effort on piloting the glider with @RAEON_ & vessel support by @michigantech. Learn more about our #GreatLakes #ObservingSystems research: https://t.co/NzOf5vDSqw

#GreatLakesSci #FieldWorkFriday

Our deepest condolences to family, friends and the @GLIERUWINDSOR @EESWindsor community on the loss of Dr. Jill Crossman. We'd like to share a video featuring Dr. Crossman so that you can learn a bit more about her and her work. https://t.co/4wkj1i2biN

Another glider launched in @LakeErieNorth. Thanks so much to @CIGLR_UM + @ohiodnr for their amazing efforts. Cormorant will be working to verify lake turnover throughout the next few weeks!

#loonranger is refurbished and back in the water, ready for field work on Lake Erie!

It's Wiggle Wednesday! One of the standard pre-deployment checks for our gliders is to have them "wiggle" for 10 minutes, which tests that the mechanical components are functioning as expected. #wiggleon #wiggleoff

Big load of PIT tracking gear just arrived... funding from @RAEON_ I am excited... my wife is less so as our garage is now lab equipment depot! @AndreasEkstrm2 @WTwardek @CarletonScience

A win some, lose some kind of week- or more accurately, "find some, leak some." The RV Blue Heron crew found a set of our sensors lost during a storm weeks ago (hurray!) but our Lake Ontario glider, Daphnia, had a small leak in its science bay. So it goes in aquatic science 🌊

Smart Project Series: Consortium of Autonomous Underwater Vehicles in the Great Lakes
By Maggie Xenopoulos, Trent University This is part of the Smart Project Series—stories published by Smart Great Lakes Initiative (SGLi) partners that explore current or future projects that sum up what it means to be “smart,” as established in the Common Strategy for Smart Great Lakes. The Common Strategy is the key document of the SGLi and will ...
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New Technology from Innovasea Lets Researchers Retrieve Fish Tracking Data from Shore Using an AUV
By Innovasea. BOSTON – Innovasea, a global leader in technologically advanced aquatic solutions for aquaculture and fish tracking, today announced groundbreaking new technology that will enable fish researchers to retrieve their field data from shore. The technological breakthrough comes in the form of a new module for Teledyne’s G3 Gliders that allows the autonomous underwater vehicles (AUVs) ...
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Marine Tech Talk Podcast, Episode 27: Investigating Algal Blooms and Hypoxia in the Great Lakes
Welcome to Season 2 of Marine Tech Talk. In our first episode of the New Year, we are joined by Dr. Aaron Fisk, a professor at the University of Windsor and Science Director for the Real-time Aquatic Ecosystem Observation Network (RAEON), Katelynn Johnson, Research and Operations Director at RAEON, and Cailin Burmaster, a Marine Technician ...
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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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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

Investigating nearshore and offshore patterns of thermocline and deep chlorophyll maxima formation in Lake Ontario
Continuous monitoring will provide data needed to help protect ecosystems Scientists deployed an autonomous underwater vehicle to continuously collect high-resolution spatial and temporal data in…
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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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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