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  • Dam Effects on Benthic Fishes
    The biology, microhabitat use and migratory behaviour of greenside darters (Etheostoma blennioides) was studied at the Mannheim Weir

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  • Fish fence and monitoring system install
    Arctic Char in Hope Bay
    In July 2021 and 2022, Biotactic staff travelled to Hope Bay, Nunavut to build fish fences equipped with...

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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 migration....

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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 Lake...

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  • American Eel Migration
    In 1998 and 1999, we identified the timing of out migration, swimming depth and migratory routes past the...

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  • Welland River Siphon (Aquaduct): Impacts of Flow Reversal
    In February 2001, Biotactic was contracted by the Niagara Peninsula Conservation Authority to investigate the impact of the...

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  • Rainbow Trout Passage at the Maple Hill Dam
    Passage efficiency of radiotagged rainbow trout at the Maple Hill fishway was 20 %. Based on our...

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  • Fishway Performance Meta-Analysis
    Attraction and passage efficiency was reviewed and compared from 19 monitoring studies that produced data for evaluations of...

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  • Sulphur Springs
    Several cold water sulphur springs flow into tributaries of the Welland River on the Niagara Peninsula. Sulphur...

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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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  • Rainbow Trout Passage at Denny's Dam Fishway
    Rainbow Trout Migration and Passage at Denny's Dam, Saugeen RiverPrevious radiotelemetry studies in the Saugeen River were designed...

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  • Fish Passage in Brazil
    In November 2012, and again in 2019 we assisted our very good friends at Simbiota in Southern Brazil...

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