Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2020
ProjectJohn Day
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Oct 31)
Total Number of Fish Observed79703
Percent of Total Run Analyzed [Number Observed]66.61 % [53092]1
Temperature Exposure Index20.15 C
Percent of Fish Exposed [Number Exposed]99.4 % [52818]
Number of Days Fish Exposed100
Middle 80% of Run Period (Jul 25 - Oct 11)
Number of Fish Observed64175
Percent of Middle 80% of Run Analyzed [Number Observed]70.71 % [45384]
Temperature Exposure Index20.44 C
Percent of Fish Exposed [Number Exposed]100 % [45384]
Number of Days Fish Exposed61
Middle 50% of Run Period (Sep 2 - Sep 27)
Number of Fish Observed40519
Percent of Middle 50% of Run Analyzed [Number Observed]83.47 % [33823]
Temperature Exposure Index20.19 C
Percent of Fish Exposed [Number Exposed]100 % [33823]
Number of Days Fish Exposed22
Run Dates
First Day of RunApr 1
5% of Run passedJul 16
10% of Run passedJul 25
50% of Run passedSep 18
90% of Run passedOct 11
95% of Run passedOct 15
Last Day of RunOct 31
Date(s) When Temperature Crosses 15 C
Jun 16

1. Total Run Analyzed [53092] is less than total observed during the period [79703]. Only fish observed on days with River Parameter data are analyzed.