Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2017
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 - Nov 21)
Total Number of Fish Observed117399
Percent of Total Run Analyzed [Number Observed]89.06 % [104566]1
Temperature Exposure Index21.02 C
Percent of Fish Exposed [Number Exposed]96.4 % [100847]
Number of Days Fish Exposed102
Middle 80% of Run Period (Jul 21 - Sep 23)
Number of Fish Observed94723
Percent of Middle 80% of Run Analyzed [Number Observed]98.07 % [92898]
Temperature Exposure Index21.63 C
Percent of Fish Exposed [Number Exposed]100 % [92898]
Number of Days Fish Exposed63
Middle 50% of Run Period (Aug 5 - Sep 12)
Number of Fish Observed60193
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [60193]
Temperature Exposure Index21.96 C
Percent of Fish Exposed [Number Exposed]100 % [60193]
Number of Days Fish Exposed38
Run Dates
First Day of RunJan 1
5% of Run passedJul 6
10% of Run passedJul 21
50% of Run passedAug 24
90% of Run passedSep 23
95% of Run passedSep 30
Last Day of RunNov 21
Date(s) When Temperature Crosses 15 C
Jun 2, Jun 4, Jun 7, Jun 9, Jun 16

1. Total Run Analyzed [104566] is less than total observed during the period [117399]. Only fish observed on days with River Parameter data are analyzed.