Columbia Basin Performance Measures

Adult Passage Exposure Results

graph

Adult Steelhead Query Parameters
Year2017
ProjectThe Dalles
River ParameterTemperature
Critical Temperature Value15 C
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 1 - Nov 17)
Total Number of Fish Observed96823
Percent of Total Run Analyzed [Number Observed]81.38 % [78800]1
Temperature Exposure Index20.62 C
Percent of Fish Exposed [Number Exposed]98.8 % [77907]
Number of Days Fish Exposed104
Middle 80% of Run Period (Aug 19 - Oct 4)
Number of Fish Observed77810
Percent of Middle 80% of Run Analyzed [Number Observed]89.72 % [69817]
Temperature Exposure Index20.68 C
Percent of Fish Exposed [Number Exposed]100 % [69817]
Number of Days Fish Exposed40
Middle 50% of Run Period (Sep 7 - Sep 24)
Number of Fish Observed49560
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [49560]
Temperature Exposure Index20.47 C
Percent of Fish Exposed [Number Exposed]100 % [49560]
Number of Days Fish Exposed18
Run Dates
First Day of RunMar 1
5% of Run passedJul 24
10% of Run passedAug 19
50% of Run passedSep 18
90% of Run passedOct 4
95% of Run passedOct 11
Last Day of RunNov 17
Date(s) When Temperature Crosses 15 C
Jun 16

1. Total Run Analyzed [78800] is less than total observed during the period [96823]. Only fish observed on days with River Parameter data are analyzed.