Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead 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 28 - Jun 23)
Total Number of Fish Observed4612
Percent of Total Run Analyzed [Number Observed]99.97 % [4611]1
Temperature Exposure Index12.56 C
Percent of Fish Exposed [Number Exposed]4 % [187]
Number of Days Fish Exposed16
Middle 80% of Run Period (Apr 26 - May 30)
Number of Fish Observed3791
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [3791]
Temperature Exposure Index12.71 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 Observed2349
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [2349]
Temperature Exposure Index12.6 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunFeb 28
5% of Run passedApr 20
10% of Run passedApr 26
50% of Run passedMay 11
90% of Run passedMay 30
95% of Run passedJun 2
Last Day of RunJun 23
Date(s) When Temperature Crosses 15 C
Jun 2, Jun 3, Jun 6

1. Total Run Analyzed [4611] is less than total observed during the period [4612]. Only fish observed on days with River Parameter data are analyzed.