Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2024
ProjectJohn Day
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 19 - May 1)
Total Number of Fish Observed51
Percent of Total Run Analyzed [Number Observed]100 % [51]
Tailrace TDG Percent Exposure Index114.02 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 6 - Apr 30)
Number of Fish Observed42
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [42]
Tailrace TDG Percent Exposure Index114.49 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 10 - Apr 28)
Number of Fish Observed29
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [29]
Tailrace TDG Percent Exposure Index115.4 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 19
5% of Run passedApr 1
10% of Run passedApr 6
50% of Run passedApr 22
90% of Run passedApr 30
95% of Run passedMay 1
Last Day of RunMay 1