Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2021
ProjectLower Monumental
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Apr 1 - Nov 27)
Total Number of Fish Observed288
Percent of Total Run Analyzed [Number Observed]98.95 % [285]1
Tailrace TDG Percent Exposure Index116.48 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 80% of Run Period (Apr 20 - May 28)
Number of Fish Observed236
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [236]
Tailrace TDG Percent Exposure Index117.05 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Middle 50% of Run Period (May 7 - May 21)
Number of Fish Observed158
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [158]
Tailrace TDG Percent Exposure Index117.52 %
Percent of Fish Exposed [Number Exposed]0 % [0]
Number of Days Fish Exposed0
Run Dates
First Day of RunApr 1
5% of Run passedApr 16
10% of Run passedApr 20
50% of Run passedMay 13
90% of Run passedMay 28
95% of Run passedJun 7
Last Day of RunNov 27

1. Total Run Analyzed [285] is less than total observed during the period [288]. Only fish observed on days with River Parameter data are analyzed.