RLEF has been supporting research on lake fish populations, including that Dr. David Philipp and Dr. Steve Cooke for some time. Studies have shown that the Bass populations in Big and Upper Rideau Lakes was declining over time due to preseason catch and release fishing taking male bass away from their nests. Fisheries Conservation Foundation (FCF) is working on a…
December 2025 Dear Lake Friends and Neighbours, As the year winds down and the snow settles on the lake, it’s time to pause and reflect on the value of this special place to our own well-being and that of our families. Time at the lake allows us to reflect and reconnect. We rely on a healthy lake environment for our…
The Big Rideau Lake Association (BRLA) is working with the Rideau Lakes Environmental Foundation (RLEF) and the Upper Rideau Lake Association (URLA) to develop a conservation plan.
Here is an update on getting a larger, new Bass Spawning Sanctuary Study up and running in the expanded group of bass lakes that make up our Coalition for Innovative Fisheries Conservation (CIFC). That all said, it became very clear that the study as we envision it, cannot get started until spring of 2027. Even if we could have had…
From Dr. David Philipp, October 2025 Largemouth and smallmouth bass (LMB and SMB) have a complex life history in which males of both species are entirely responsible for building nests, courting females for spawning, and then once fertilized eggs are in their nests, solely providing extended parental care of the resulting offspring for another 4-6 weeks post-fertilization (Ridgeway 1988). That…
RLEF activities are featured in an article in the Westport Review-Mirror, September 18, 2025…
Restoring degraded aquatic habitat is one of the most appealing tools in freshwater conservation.
A study on Big Rideau Lake, published in 2024, tested one such intervention for smallmouth bass spawning habitat — and the results illustrate how difficult translating that logic into practice can be.
There’s a new “live” report up on Facebook from researchers at Carleton University, reporting on survey of showing a bass on a nest, and talking about ideal temperatures for bass spawning from May 2025. Hook wounds are a real indication of angling pressures.
If so, please complete this survey for Dr. Steven J. Cooke, Ph.D., Professor and Director, Canadian Centre for Evidence-Informed Conservation Carleton University, Ottawa, Canada. Your knowledge of the state of bass populations in key lakes/rivers and perspectives on bass management will supplement traditional fisheries sampling conducted by MNR. Survey results will build an undertanding of current angler attitudes towards existing…
Did you know that even with “Catch and Release” taking a bass off his nest will likely result in the death of his brood? Bass spawning sanctuaries have proven successful in ensuring the survival of young by preventing all fishing in sensitive areas while fish are spawning. The Fisheries Conservation Foundation is exploring Innovative Solutions for Large mouth and Smallmouth…
RLEF President Hansen Downer was interviewed on 88.1 myFM (previously Lake 88.1) about Bass Spawning Sanctuaries. Listen to the recording.
Big Rideau Lake is one of the few lakes in Eastern Ontario deep enough to support a Lake Trout population. There is a concern that the this population is declining, but there is no statistical information to support that theory. Telemetry studies will allow researchers from the Fisheries Conservation Foundation (FCF) to track the movement of Lake Trout, identify…