Walla Walla River Basin Fish Screens Evaluations: Nursery Bridge Fishway and Garden City/Lowden II Sites (Annual Report, January 2005-May 2006)

摘要

Over the past 20 years, the Bonneville Power Administration (BPA) and the Northwest Power and Conservation Council (NPCC) have expanded screening efforts to protect and enhance fish populations. The evaluation of existing screen sites is important to ensure that the sites achieve the goals of protecting fish from entrainment and from harm within the screen facility itself. The study reported here is focused on fish screen facilities at two sites in the Walla Walla River basin, one in southeastern Washington and the other in northeastern Oregon