Upstream movement: How a bypass channel helps sturgeon reach prehistoric spawning grounds
Montana Untamed28 Touko 2024

Upstream movement: How a bypass channel helps sturgeon reach prehistoric spawning grounds

Since Intake Diversion Dam was completed on the Yellowstone River in 1905, pallid sturgeon have faced a blockade during their annual upstream spring spawning runs.

The dam is located between Glendive and Sidney and became a popular place for paddlefish snagging since the fish stacked up below the dam in spring.

In the spring of 2022, after three years of construction, a 2-mile long bypass channel was opened. This short waterway allows pallid sturgeon, paddlefish and other native species to swim around a dam that has long blocked their passage. The bypass channel was a $44 million investment to see if pallid sturgeon, which were listed as an endangered species in the river in 1990, will now have enough room to migrate upstream and successfully spawn.

To learn more about pallid sturgeon and efforts to save the fish, Brett French, outdoor editor of the Billings Gazette, is here to talk with me today.

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Jaksot(111)

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