Ask a fisheries biologist: Advancing our understanding of fish “escapement” at dams

We have always known that fish leave reservoirs by going over dams, which is a big reason why fishing below dams is so popular. Losing those fish from the reservoir, which biologists call ‘escapement,’ can be a drain on the population and a challenge for managing that fishery.
This is especially true when expensive stocked fish are leaving the lake instead of staying put and available to anglers.

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