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Study: Lewis and Clark Lake fishery shaped by flow; tagging shows varied movement and modest entrainment
Summary
NGPC staff discussed UNL tagging and entrainment research showing a flow breakpoint (~25,000 CFS) linked to lower walleye/sauger catch rates, individual fish ranging from 'homebodies' to long-distance movers, and adult entrainment losses of about 2–3% in the study period.
Researchers working with the Nebraska Game and Parks Commission told viewers that flow regimes and dam operations strongly influence fish production and movement at Lewis and Clark Lake.
"It's like that 25,000 CFS is kind of a breaking point," said Phil Shabalala, fisheries biologist with NGPC’s Norfolk office, describing a correlation between mean Missouri River flow and lower walleye and sauger catch rates in the reservoir.…
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