Columbia Basin Performance Measures

PIT Tag Exposure Results


PIT-Tagged Wild Spring/Summer Chinook Query Parameters
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 3 - Dec 17)
Total Number of Fish Observed4820
Percent of Total Run Analyzed [Number Observed]98.9 % [4767]1
Temperature Exposure Index11.72 C
Percent of Fish Exposed [Number Exposed]12.1 % [580]
Number of Days Fish Exposed68
Middle 80% of Run Period (Apr 21 - Jul 5)
Number of Fish Observed3960
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [3960]
Temperature Exposure Index11.11 C
Percent of Fish Exposed [Number Exposed]4.1 % [166]
Number of Days Fish Exposed16
Middle 50% of Run Period (Apr 25 - May 19)
Number of Fish Observed2552
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [2552]
Temperature Exposure Index10.62 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 3
5% of Run passedApr 18
10% of Run passedApr 21
50% of Run passedMay 2
90% of Run passedJul 5
95% of Run passedJul 25
Last Day of RunDec 17
Date(s) When Temperature Crosses 15 C
Jun 18

1. Total Run Analyzed [4767] is less than total observed during the period [4820]. Only fish observed on days with River Parameter data are analyzed.