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 - Jun 18)
Total Number of Fish Observed429
Percent of Total Run Analyzed [Number Observed]100 % [429]
Tailrace TDG Percent Exposure Index114.83 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 28 - May 28)
Number of Fish Observed350
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [350]
Tailrace TDG Percent Exposure Index114.86 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 8 - May 23)
Number of Fish Observed229
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [229]
Tailrace TDG Percent Exposure Index115.3 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 19
5% of Run passedApr 20
10% of Run passedApr 28
50% of Run passedMay 11
90% of Run passedMay 28
95% of Run passedJun 2
Last Day of RunJun 18