Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook 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 18 - Dec 18)
Total Number of Fish Observed854
Percent of Total Run Analyzed [Number Observed]100 % [854]
Tailrace TDG Percent Exposure Index114.94 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 23 - Jun 7)
Number of Fish Observed701
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [701]
Tailrace TDG Percent Exposure Index114.98 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 29 - May 24)
Number of Fish Observed457
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [457]
Tailrace TDG Percent Exposure Index115.06 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 18
5% of Run passedApr 19
10% of Run passedApr 23
50% of Run passedMay 8
90% of Run passedJun 7
95% of Run passedJun 15
Last Day of RunDec 18
Date(s) When Tailrace TDG Percent Crosses 120 %
Jul 17, Jul 18, Oct 9, Oct 11