Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2020
ProjectBonneville
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Feb 22 - Jul 3)
Total Number of Fish Observed3726
Percent of Total Run Analyzed [Number Observed]99.97 % [3725]1
Temperature Exposure Index12.92 C
Percent of Fish Exposed [Number Exposed]0.7 % [28]
Number of Days Fish Exposed15
Middle 80% of Run Period (Apr 29 - May 26)
Number of Fish Observed3033
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [3033]
Temperature Exposure Index12.97 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 4 - May 22)
Number of Fish Observed1948
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1948]
Temperature Exposure Index13.03 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunFeb 22
5% of Run passedApr 23
10% of Run passedApr 29
50% of Run passedMay 12
90% of Run passedMay 26
95% of Run passedMay 31
Last Day of RunJul 3
Date(s) When Temperature Crosses 15 C
Jun 11, Jun 13, Jun 16

1. Total Run Analyzed [3725] is less than total observed during the period [3726]. Only fish observed on days with River Parameter data are analyzed.