Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2018
ProjectJohn Day
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Feb 27 - Aug 13)
Total Number of Fish Observed5314
Percent of Total Run Analyzed [Number Observed]99.96 % [5312]1
Temperature Exposure Index12.04 C
Percent of Fish Exposed [Number Exposed]5.7 % [305]
Number of Days Fish Exposed63
Middle 80% of Run Period (Apr 25 - May 26)
Number of Fish Observed4366
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [4366]
Temperature Exposure Index11.69 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 28 - May 11)
Number of Fish Observed3068
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3068]
Temperature Exposure Index11.53 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunFeb 27
5% of Run passedApr 23
10% of Run passedApr 25
50% of Run passedMay 2
90% of Run passedMay 26
95% of Run passedJun 4
Last Day of RunAug 13
Date(s) When Temperature Crosses 15 C
May 30, Jun 3, Jun 6

1. Total Run Analyzed [5312] is less than total observed during the period [5314]. Only fish observed on days with River Parameter data are analyzed.