Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2021
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 (Feb 25 - Dec 1)
Total Number of Fish Observed738
Percent of Total Run Analyzed [Number Observed]100 % [738]
Temperature Tailrace Exposure Index14.34 C
Percent of Fish Exposed [Number Exposed]24.7 % [183]
Number of Days Fish Exposed56
Middle 80% of Run Period (May 3 - Jun 20)
Number of Fish Observed621
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [621]
Temperature Tailrace Exposure Index13.78 C
Percent of Fish Exposed [Number Exposed]18 % [112]
Number of Days Fish Exposed19
Middle 50% of Run Period (May 8 - Jun 1)
Number of Fish Observed384
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [384]
Temperature Tailrace Exposure Index13.64 C
Percent of Fish Exposed [Number Exposed]2.3 % [9]
Number of Days Fish Exposed1
Run Dates
First Day of RunFeb 25
5% of Run passedMay 2
10% of Run passedMay 3
50% of Run passedMay 16
90% of Run passedJun 20
95% of Run passedJul 14
Last Day of RunDec 1
Date(s) When Temperature Tailrace Crosses 15 C
Jun 1, Oct 24