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Invasive crayfish may pose new threat to trout in Calgary area

Posted July 19, 2018 7:25 pm EST

Updated July 24, 2023 1:20 pm EST

Wildlife officials are on the lookout for a new potential threat to trout in the Calgary area. As Gil Tucker shows us, they’re wading into the water looking for signs of an unwelcome invader.

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Invasive crayfish may pose new threat to Calgary-area trout

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