Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead 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 (Mar 2 - Jun 28)
Total Number of Fish Observed335
Percent of Total Run Analyzed [Number Observed]100 % [335]
Temperature Tailrace Exposure Index13.63 C
Percent of Fish Exposed [Number Exposed]22.6 % [76]
Number of Days Fish Exposed17
Middle 80% of Run Period (May 2 - Jun 5)
Number of Fish Observed274
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [274]
Temperature Tailrace Exposure Index13.83 C
Percent of Fish Exposed [Number Exposed]17.1 % [47]
Number of Days Fish Exposed5
Middle 50% of Run Period (May 7 - May 30)
Number of Fish Observed178
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [178]
Temperature Tailrace Exposure Index13.67 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 2
5% of Run passedApr 22
10% of Run passedMay 2
50% of Run passedMay 18
90% of Run passedJun 5
95% of Run passedJun 7
Last Day of RunJun 28
Date(s) When Temperature Tailrace Crosses 15 C
Jun 1