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 Observed560
Percent of Total Run Analyzed [Number Observed]100 % [560]
Tailrace TDG Percent Exposure Index114.79 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 26 - May 30)
Number of Fish Observed453
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [453]
Tailrace TDG Percent Exposure Index114.82 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 7 - May 23)
Number of Fish Observed290
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [290]
Tailrace TDG Percent Exposure Index115.18 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 19
5% of Run passedApr 17
10% of Run passedApr 26
50% of Run passedMay 11
90% of Run passedMay 30
95% of Run passedJun 4
Last Day of RunJun 18