Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2020
ProjectIce Harbor
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 23 - Jul 15)
Total Number of Fish Observed910
Percent of Total Run Analyzed [Number Observed]99.89 % [909]1
Temperature Exposure Index11.74 C
Percent of Fish Exposed [Number Exposed]0.7 % [7]
Number of Days Fish Exposed4
Middle 80% of Run Period (Apr 27 - May 25)
Number of Fish Observed734
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [734]
Temperature Exposure Index11.72 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 29 - May 12)
Number of Fish Observed463
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [463]
Temperature Exposure Index11.82 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 23
5% of Run passedApr 26
10% of Run passedApr 27
50% of Run passedMay 1
90% of Run passedMay 25
95% of Run passedMay 29
Last Day of RunJul 15
Date(s) When Temperature Crosses 15 C
Jun 13, Jun 15, Jun 20

1. Total Run Analyzed [909] is less than total observed during the period [910]. Only fish observed on days with River Parameter data are analyzed.