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Trout Swap in Canadian Lake Reintroduces Native Species [VIDEO]

Rainbow trout are plentiful in Rainbow Lake in Banff, Canada. But they aren’t supposed to be.

The species native to the lake is the cutthroat trout, and Parks Canada is working to bring the cutthroat back to Rainbow Lake.


Rainbow trout were introduced to the lake about 100 years ago. They soon pushed out the cutthroat and cross-bred with other fish.

Parks Canada removed all of the fish from the lake over four years, and recently reintroduced the native cutthroat. Officials transplanted 100 adult and 15 juvenile cutthroat from Alberta’s Sawback Lake, where the species is plentiful.

A team of anglers from Trout Unlimited caught the sawback cutthroat to be transplanted into Rainbow Lake.

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Trout Swap in Canadian Lake Reintroduces Native Species [VIDEO]