Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2016
ProjectBonneville
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value115 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Jan 1 - Dec 31)
Total Number of Fish Observed188146
Percent of Total Run Analyzed [Number Observed]74.38 % [139947]1
Tailrace TDG Percent Exposure Index114.44 %
Percent of Fish Exposed [Number Exposed]60.1 % [84236]
Number of Days Fish Exposed126
Middle 80% of Run Period (Jul 5 - Sep 26)
Number of Fish Observed151536
Percent of Middle 80% of Run Analyzed [Number Observed]81.69 % [123794]
Tailrace TDG Percent Exposure Index114.26 %
Percent of Fish Exposed [Number Exposed]56.6 % [70132]
Number of Days Fish Exposed41
Middle 50% of Run Period (Jul 25 - Sep 14)
Number of Fish Observed95759
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [95759]
Tailrace TDG Percent Exposure Index113.55 %
Percent of Fish Exposed [Number Exposed]43.9 % [42097]
Number of Days Fish Exposed21
Run Dates
First Day of RunJan 1
5% of Run passedJun 20
10% of Run passedJul 5
50% of Run passedAug 19
90% of Run passedSep 26
95% of Run passedOct 4
Last Day of RunDec 31
Date(s) When Tailrace TDG Percent Crosses 115 %
Apr 10, Jul 4, Jul 5, Aug 4, Aug 5, Aug 10, Aug 11, Aug 14, Aug 19, Aug 21, Sep 14

1. Total Run Analyzed [139947] is less than total observed during the period [188146]. Only fish observed on days with River Parameter data are analyzed.