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Underwater Monitoring
  • Fishway Attraction Enhancement
    Two Denil fishways on the Grand River, Ontario, have been monitored for activity by several dozen fish...
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  • Fish Movement in the Welland River Watershed
    Starting in 2001 Biotactic, with the Niagara Peninsula Conservation Authority (NPCA) and Niagara Restoration Council, has monitored...
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  • Dunnville Fishway Walleye Passage
    A Denil fishway in Dunnville, Ontario was built to provide upstream passage for walleye Stizostedion vitreum from...
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  • Rainbow Trout Migration Patterns in the Saugeen River Watershed
    The Truax Dam was removed in August 2019. Future post-removal phases of this study will provide data...
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  • Hydro-electric Turbine Impact Evaluation
    Smolts require access to the fishway (i.e., the fishway must be open and operational) during their downstream...
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  • Restoring Walleye Migration in the Shebeshekong River
    In 2017 we restored migration routes for Walleye at a set of rapids and a waterfall that...
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  • Northern Pike Annual Fish Lift
    Movement of northern pike from the Grand River in Kitchener, Ontario, Canada to spawning areas in tributary...
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  • Electrofishing Surveys to Determine Fish Community Biomass
    Biotactic established twenty-two long term monitoring sites (66 sampling subsections) across the Saugeen River watershed within which...
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  • Greater Redhorse Ontogeny
    Adult greater redhorse Moxostoma valenciennesi, were seined from the Grand River, Ontario, and artificially spawned in May 1997...
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  • Swimming in Turbulent Flows
    We have installed and operated cameras that stream fish movement inside fishways, onto the internet since 2007....
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  • anglers downstream denny's dam
    Impact of COVID-19 pandemic on a fishery
    After initial complete lock-downs caused recreational angling restrictions due to COVID-19, angler exploitation rates of rainbow trout...
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  • Effects of Increase Silt Load
    Rock bass (Ambloplites rupestris) are a widespread centrarchid species with both riverine and lacustrine populations. After precipitation...
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