Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2024
ProjectBonneville
River ParameterTemperature Tailrace
Critical Temperature Tailrace Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Jan 1 - May 17)
Total Number of Fish Observed2622
Percent of Total Run Analyzed [Number Observed]39.93 % [1047]1
Temperature Tailrace Exposure Index11.57 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Jan 24 - May 12)
Number of Fish Observed2137
Percent of Middle 80% of Run Analyzed [Number Observed]37.52 % [802]
Temperature Tailrace Exposure Index10.9 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (Feb 20 - Apr 23)
Number of Fish Observed1340
Percent of Middle 50% of Run Analyzed [Number Observed]30.97 % [415]
Temperature Tailrace Exposure Index9.8 C
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunJan 1
5% of Run passedJan 11
10% of Run passedJan 24
50% of Run passedMar 20
90% of Run passedMay 12
95% of Run passedMay 15
Last Day of RunMay 17

1. Total Run Analyzed [1047] is less than total observed during the period [2622]. Only fish observed on days with River Parameter data are analyzed.