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 19)
Total Number of Fish Observed564
Percent of Total Run Analyzed [Number Observed]100 % [564]
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 27 - May 31)
Number of Fish Observed462
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [462]
Tailrace TDG Percent Exposure Index114.83 %
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 Observed293
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [293]
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 18
10% of Run passedApr 27
50% of Run passedMay 11
90% of Run passedMay 31
95% of Run passedJun 4
Last Day of RunJun 19