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


🚨Check out this new pub about the #LakeErie #HABs Grab! #GreatLakes #GreatLakesSci

Sturgeon, @RAEON_ @TeledyneMarine #AUV safely back onboard the @RV_Cisco after first test deploy in #LakeOntario. Prelim data collected realtime, but now get to see the full dataset incl fish detections. A learning experience for the crew getting a 180lb (80kg) robot on a boat😋.

The western basin of #LakeErie experiences an annual #harmalgalboom. Each year NOAA uses stream flow and #phosphorus concentrations in the #MaumeeRiver to predict bloom severity. This year’s prediction is a severity of 3 on a 10-point scale largely due to low stream flows.

With our partner @GLATOS_Fish + using our @TeledyneMarine Slocum gliders, we will be able to download fish telemetry data starting in Lake Ontario this fall. A game-changer for the fish tracking community! Stay tuned + see press release below for more info.

RT @NOAA_GLERL: NOAA #data training opportunity! 🖥️

Thurs 7/29 @ 1-3:30pm ET, @NOAA's #GreatLakes CoastWatch node will host an online satellite data training course that will teach how to search, access, & download NOAA #satellite data. 🛰️

Register here:

Dallas and Kelly preparing to deploy the first Canadian 🇨🇦 #AUV glider mission in #LakeOntario. The Sturgeon will spend 3-4 weeks measuring nearshore-offshore temperature, chlorophyll, oxygen and listening for fishes. #OceanRobots
#GreatLakesLab @DFO_Science @RAEON_ @RV_Cisco

Testing, testing... Sturgeon went for testing in wavy Lake Erie last week, to prepare for its deployment in Lake Ontario.

Happy to report that our buoys weathered the storm last night.

Happy Friday! Enjoy these glamour shots of our Lake Erie buoys, part of the @NSERC_CRSNG Alliance water security project. We've had a great deployment season thus far- and we're just getting started. @Innovasea @RealGLOS @ScienceUWindsor

Hello Sturgeon! @DFO_Science will be deploying you soon to measure water column conditions in the Western basin of #LakeOntario. It will also be listening for pinging @GLATOS_Fish fishes, and once we get this test run done, fish hydroacoustics. #Gliders #AUV

Preparing for launch! Sturgeon, one of our 100m gliders, is ballasted and just about ready for deployment in Lake Ontario. Everyone say hi to Sturgeon! @DrPlanktonguy

Just finished PPS training, thanks @mclanelabs! Our phytoplankton samplers are ready to go. Looking forward to collaborating on eDNA projects 🧬🧬🧬

Ok...I know I said Monday was the last one. But due to a minor fuse issue last night..this one had to be redeployed this morning. The lake was so calm we couldn't pass up the opportunity! Thanks to @RAEON_ for field support!!!

@archanavchari We have a @RAEON_ RBR profiler (named Yvette) that I didn't realize would be so fun to use. We aren't quite to the hugging stage yet....

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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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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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