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 - May 17)
Total Number of Fish Observed475
Percent of Total Run Analyzed [Number Observed]100 % [475]
Tailrace TDG Percent Exposure Index115.09 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 20 - May 11)
Number of Fish Observed388
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [388]
Tailrace TDG Percent Exposure Index115.01 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 25 - May 6)
Number of Fish Observed274
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [274]
Tailrace TDG Percent Exposure Index115.02 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 18
5% of Run passedApr 17
10% of Run passedApr 20
50% of Run passedMay 1
90% of Run passedMay 11
95% of Run passedMay 14
Last Day of RunMay 17