Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2021
ProjectBonneville
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 31 - Jul 3)
Total Number of Fish Observed5379
Percent of Total Run Analyzed [Number Observed]100 % [5379]
Tailrace TDG Percent Exposure Index118.94 %
Percent of Fish Exposed [Number Exposed]5.6 % [306]
Number of Days Fish Exposed5
Middle 80% of Run Period (May 4 - Jun 3)
Number of Fish Observed4429
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [4429]
Tailrace TDG Percent Exposure Index118.9 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 11 - May 27)
Number of Fish Observed2950
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [2950]
Tailrace TDG Percent Exposure Index118.84 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 31
5% of Run passedApr 29
10% of Run passedMay 4
50% of Run passedMay 18
90% of Run passedJun 3
95% of Run passedJun 6
Last Day of RunJul 3
Date(s) When Tailrace TDG Percent Crosses 120 %
Jun 4, Jun 9