Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2018
ProjectBonneville
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Jan 1 - Dec 31)
Total Number of Fish Observed102920
Percent of Total Run Analyzed [Number Observed]90.33 % [92968]1
Temperature Exposure Index19.85 C
Percent of Fish Exposed [Number Exposed]96.7 % [89936]
Number of Days Fish Exposed118
Middle 80% of Run Period (Jul 6 - Sep 26)
Number of Fish Observed83107
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [83107]
Temperature Exposure Index20.38 C
Percent of Fish Exposed [Number Exposed]100 % [83107]
Number of Days Fish Exposed83
Middle 50% of Run Period (Jul 25 - Sep 11)
Number of Fish Observed53315
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [53315]
Temperature Exposure Index20.83 C
Percent of Fish Exposed [Number Exposed]100 % [53315]
Number of Days Fish Exposed49
Run Dates
First Day of RunJan 1
5% of Run passedJun 18
10% of Run passedJul 6
50% of Run passedAug 17
90% of Run passedSep 26
95% of Run passedOct 6
Last Day of RunDec 31
Date(s) When Temperature Crosses 15 C
Jun 2

1. Total Run Analyzed [92968] is less than total observed during the period [102920]. Only fish observed on days with River Parameter data are analyzed.