Columbia Basin Performance Measures

Adult Passage Exposure Results


Adult Steelhead Query Parameters
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 Observed83253
Percent of Total Run Analyzed [Number Observed]72.08 % [60010]1
Temperature Exposure Index20.45 C
Percent of Fish Exposed [Number Exposed]99 % [59454]
Number of Days Fish Exposed102
Middle 80% of Run Period (Sep 2 - Oct 9)
Number of Fish Observed67187
Percent of Middle 80% of Run Analyzed [Number Observed]77.55 % [52109]
Temperature Exposure Index20.41 C
Percent of Fish Exposed [Number Exposed]100 % [52109]
Number of Days Fish Exposed26
Middle 50% of Run Period (Sep 16 - Sep 29)
Number of Fish Observed43386
Percent of Middle 50% of Run Analyzed [Number Observed]91.87 % [39859]
Temperature Exposure Index19.99 C
Percent of Fish Exposed [Number Exposed]100 % [39859]
Number of Days Fish Exposed12
Run Dates
First Day of RunApr 1
5% of Run passedAug 3
10% of Run passedSep 2
50% of Run passedSep 22
90% of Run passedOct 9
95% of Run passedOct 18
Last Day of RunOct 31
Date(s) When Temperature Crosses 15 C
Jun 17

1. Total Run Analyzed [60010] is less than total observed during the period [83253]. Only fish observed on days with River Parameter data are analyzed.