Chief Joseph Kokanee Enhancement Project: Strobe Light Deterrent Efficacy Test and Fish Behavior Determination at Grand Coulee Dam Third Powerplant Forebay. (Annual Report, 2005-2006)

摘要

In 2005, the last in a series of studies was conducted to evaluate the effectiveness of strobe lights in reducing the entrainment of kokanee (Oncorhynchus nerka kennerlyi) and rainbow trout (O. mykiss) at Grand Coulee Dam. In earlier studies, we placed strobe lights at the entrance to the third powerplant forebay to determine if the lights would deter the fish from entering the forebay. For 2005, strobe lights were deployed on the trash rack directly in front of the intake to a turbine penstrock to evaluate the potential for reducing entrainment in a dynamic velocity flux environment. This work was conducted for the Bonneville Power Administration, U.S. Department of Energy, by Pacific Northwest National Laboratory (PNNL) in conjunction with the Confederated Tribes of the Colville Reservation (Colville Confederated Tribes).