HYDRODYNAMICS AND JUVENILE SALMON MOVEMENT BEHAVIOR AT LOWER GRANITE DAM: DECODING THE RELATIONSHIP USING 3-D SPACE-TIME (CELAGENT IBM) SIMULATION
Goodwin, Richard Andrew
Downstream passage of outmigrating juvenile salmon (migrants) at hydropower dams on the Columbia and Snake Rivers has, generally, not been entirely successful. To date, research in the region has generated considerable, but often inconclusive, results as to the factors influencing observed migrant guidance and passage. This dissertation synthesizes existing fisheries and sensory biology literature together with fundamentals of fluid mechanics and river hydrogeomorphology to develop a theoretically rigorous hypothesis of observed migrant movement behavior at Lower Granite Dam on the Snake River, Washington USA (chapter 1). The hypothesis, the Strain-Velocity-Pressure (SVP) Hypothesis, is supported by existing 3-D acoustic-tag telemetry data, multi-beam hydroacoustic passage data, 3-D computational fluid dynamics (CFD) modeling, and 3-D spatially explicit, time-varying virtual fish simulation that outputs model results in similar form to data collected by field instrumentation.
Salmon; locomotion; movement behavior; perceptual decision making; dam; computational fluid dynamics; CFD model; particle tracking model; PTM; Eulerian-Lagrangian-agent method; ELAM model; state-space model; individual based model
D. Peter Loucks
Mark B. Bain; Doug Haith; John M. Nestler
Civil and Environmental Engineering
Ph. D., Civil and Environmental Engineering
Doctor of Philosophy
dissertation or thesis
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