Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2024
ProjectJohn Day
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
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]
Temperature Tailrace Exposure Index12.96 C
Percent of Fish Exposed [Number Exposed]9.9 % [85]
Number of Days Fish Exposed33
Middle 80% of Run Period (Apr 23 - Jun 7)
Number of Fish Observed701
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [701]
Temperature Tailrace Exposure Index12.77 C
Percent of Fish Exposed [Number Exposed]0.7 % [5]
Number of Days Fish Exposed1
Middle 50% of Run Period (Apr 29 - May 24)
Number of Fish Observed457
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [457]
Temperature Tailrace Exposure Index12.74 C
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 Temperature Tailrace Crosses 15 C
Jun 7, Oct 30