At Willamette Falls Dam, it takes the staff most of the day to accurately review one day of fish passage on tape when the counts are high. The WFA staff make every attempt to keep the counts as up-to-date as possible. The steelhead counts include unclipped wild steelhead. It is not appropriate to add the steelhead counts and wild steelhead counts together. There are two categories for steelhead 1. Unclipped Steelhead and 2.
PNNL researchers have conducted research studies and worked with regulators to investigate potential impacts of the Whooshh system on fish. Specifically, the studies address whether the system introduces injury rates or negative reproductive health issues to adult salmon. Continued PNNL-Whooshh Innovations studies work to address the regulatory requirements for approval of innovative fish passage technologies. This discovery led to lowering the reservoirs behind the dam, installing pumps in the forebay, and implementing modifications to fish ladders.
If a selection for Chinook Run is undefined for the selected Project, it will be ignored and only the Start Date and End Date will be used in the query. To generate the Data Link for querying results directly from scripts and automated processes: Fish counting by video tape takes at least a few days to process: DART retrieves and posts the data as soon as it is made available. The updates included replacement of manually entered data from printed reports, the inclusion of historical data previously missing from DART, and the correction of counts that have been updated.