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 17)
Total Number of Fish Observed202
Percent of Total Run Analyzed [Number Observed]100 % [202]
Tailrace TDG Percent Exposure Index114.87 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 20 - May 14)
Number of Fish Observed166
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [166]
Tailrace TDG Percent Exposure Index114.97 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 1 - May 11)
Number of Fish Observed113
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [113]
Tailrace TDG Percent Exposure Index114.71 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 19
5% of Run passedApr 9
10% of Run passedApr 20
50% of Run passedMay 9
90% of Run passedMay 14
95% of Run passedMay 15
Last Day of RunMay 17