Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Chinook Query Parameters
Year2024
ProjectBonneville
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates3/15 - 6/15
Total Run Period (Mar 17 - May 1)
Total Number of Fish Observed23151
Percent of Total Run Analyzed [Number Observed]99.77 % [23099]1
Temperature Tailrace Exposure Index11.42 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 19 - May 1)
Number of Fish Observed20974
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [20974]
Temperature Tailrace Exposure Index11.54 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Apr 22 - Apr 29)
Number of Fish Observed14567
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [14567]
Temperature Tailrace Exposure Index11.59 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunMar 17
5% of Run passedApr 17
10% of Run passedApr 19
50% of Run passedApr 26
90% of Run passedMay 1
95% of Run passedMay 1
Last Day of RunMay 1

1. Total Run Analyzed [23099] is less than total observed during the period [23151]. Only fish observed on days with River Parameter data are analyzed.