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NGPC summarizes Lewis and Clark Lake research: flows, entrainment and paddlefish permit trends
Summary
Phil Shabalala, fisheries biologist with NGPC's Norfolk office, summarized Lewis and Clark Lake research showing recent improved catch rates, a strong sensitivity of the fishery to river flow, and measured entrainment and movement of adult walleye and sauger.
Phil Shabalala, fisheries biologist with the Nebraska Game and Parks Commission's Norfolk office, summarized a recent Lewis and Clark Lake research project and explained how river flows and entrainment affect the reservoir's fishery.
Shabalala described multi-year sampling showing improved combined walleye and sauger catch rates in recent years and emphasized the system's sensitivity to flow. He said mean flows above roughly "25,000 CFS" correspond with lower walleye catch rates in Lewis and Clark; the lake's relatively rapid exchange rate means inflowing water replaces reservoir volume much faster than at other mainstem reservoirs, making the fishery more flow-dependent.
Research details
- Larval entrainment and adult movement: A…
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