Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2022
ProjectBonneville
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 5 - Jul 17)
Total Number of Fish Observed2179
Percent of Total Run Analyzed [Number Observed]93.8 % [2044]1
Temperature Tailrace Exposure Index12.45 C
Percent of Fish Exposed [Number Exposed]0.1 % [4]
Number of Days Fish Exposed4
Middle 80% of Run Period (May 9 - Jun 5)
Number of Fish Observed1781
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1781]
Temperature Tailrace Exposure Index12.67 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 15 - May 31)
Number of Fish Observed1152
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1152]
Temperature Tailrace Exposure Index12.7 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 5
5% of Run passedMay 3
10% of Run passedMay 9
50% of Run passedMay 23
90% of Run passedJun 5
95% of Run passedJun 9
Last Day of RunJul 17
Date(s) When Temperature Tailrace Crosses 15 C
Jun 25

1. Total Run Analyzed [2044] is less than total observed during the period [2179]. Only fish observed on days with River Parameter data are analyzed.