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SELECTIVE PASSAGE OF SEA LAMPREY AND NATIVE GREAT LAKES FISH THROUGH HYDRAULIC BARRIERS

Effective sea lamprey control requires that migrating lamprey be prevented from accessing spawning habitat without interfering with important movements of native fishes that undergo migrations, both within rivers and between river and lake habitats. We propose to investigate swimming performance of sea lamprey and key representatives of native migratory Great Lakes fish fauna at the Aquatic Biomechanics and Kinematics Station (ABiKiS) of the USGS-Conte Center. Recent developments in theory and measurements of passage performance indicate a re-evaluation of swimming capacity and its relevance to fish passage is warranted. Swimming capabilities of fish are much greater than previously believed; methods we have developed to show this are both accurate and repeatable, allowing us to empirically challenge theoretical predictions of passage through velocity barriers. We quantify motivation (attempt rate, duration of effort), behavior (biomechanics, swim speeds, etc.), and physiological capacity (endurance). Empirical performance (distance of ascent and passage) results from a combination of these components, and can be measured directly. We will test whether and to what extent each component, as well as total performance is limited by flow velocity and turbulence.

Status
In progress
Type
Project
Start Date
End Date
Agencies
USGS (United States Geological Survey $ 100,000.00USDEstimates

Funding 15 projects for a total of $273,800.00

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Great Lakes - St. Lawrence Region.