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 17)
Total Number of Fish Observed2889
Percent of Total Run Analyzed [Number Observed]99.96 % [2888]1
Temperature Exposure Index12.34 C
Percent of Fish Exposed [Number Exposed]4.1 % [120]
Number of Days Fish Exposed14
Middle 80% of Run Period (Apr 23 - May 27)
Number of Fish Observed2353
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [2353]
Temperature Exposure Index12.44 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 2 - May 18)
Number of Fish Observed1503
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1503]
Temperature Exposure Index12.43 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 18
10% of Run passedApr 23
50% of Run passedMay 10
90% of Run passedMay 27
95% of Run passedMay 30
Last Day of RunJun 17
Date(s) When Temperature Crosses 15 C
May 30, Jun 3, Jun 6

1. Total Run Analyzed [2888] is less than total observed during the period [2889]. Only fish observed on days with River Parameter data are analyzed.