Willamette Falls Video Counting: This is the case for Prosser Dam for the years and for Roza Dam for the years It takes most of the day to accurately review one day of fish passage on tape when the counts are high. Linear regression was used to estimate the missed number of sockeye passing through the right bank ladder during the time data were lost see Miller, BM, JL Panther, and JA Arterburn. LPS were opened in and counting started in June
The Steelhead parameter includes both hatchery and wild counts.
It takes most of the day to accurately review one day of fish passage on tape when the counts are high. The Willamette Falls fish ladder was not operational on the following dates: Zosel Dam - data notes. February 15, through April 7, and May 3, through June 5, The Lamprey adult passage counts at Wells Dam are not reflective of actual run size during