Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2024
ProjectMcNary
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 28 - Jun 17)
Total Number of Fish Observed316
Percent of Total Run Analyzed [Number Observed]100 % [316]
Tailrace TDG Percent Exposure Index117.03 %
Percent of Fish Exposed [Number Exposed]22.4 % [71]
Number of Days Fish Exposed21
Middle 80% of Run Period (Apr 7 - May 28)
Number of Fish Observed255
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [255]
Tailrace TDG Percent Exposure Index117.43 %
Percent of Fish Exposed [Number Exposed]20.7 % [53]
Number of Days Fish Exposed11
Middle 50% of Run Period (Apr 22 - May 18)
Number of Fish Observed162
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [162]
Tailrace TDG Percent Exposure Index117.58 %
Percent of Fish Exposed [Number Exposed]12.3 % [20]
Number of Days Fish Exposed5
Run Dates
First Day of RunMar 28
5% of Run passedApr 2
10% of Run passedApr 7
50% of Run passedMay 7
90% of Run passedMay 28
95% of Run passedJun 5
Last Day of RunJun 17
Date(s) When Tailrace TDG Percent Crosses 120 %
May 14, May 25, May 30, Jun 2, Jun 4, Jun 15