Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2017
ProjectLower Monumental
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 (Mar 21 - Dec 15)
Total Number of Fish Observed7333
Percent of Total Run Analyzed [Number Observed]98.75 % [7242]1
Tailrace TDG Percent Exposure Index122.47 %
Percent of Fish Exposed [Number Exposed]99.4 % [7204]
Number of Days Fish Exposed96
Middle 80% of Run Period (Apr 18 - May 29)
Number of Fish Observed6028
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [6028]
Tailrace TDG Percent Exposure Index122.65 %
Percent of Fish Exposed [Number Exposed]100 % [6028]
Number of Days Fish Exposed42
Middle 50% of Run Period (May 1 - May 22)
Number of Fish Observed3870
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3870]
Tailrace TDG Percent Exposure Index123.74 %
Percent of Fish Exposed [Number Exposed]100 % [3870]
Number of Days Fish Exposed22
Run Dates
First Day of RunMar 21
5% of Run passedApr 13
10% of Run passedApr 18
50% of Run passedMay 13
90% of Run passedMay 29
95% of Run passedJun 4
Last Day of RunDec 15
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 12, Jun 13, Jun 24, Jun 25, Jul 3, Jul 4, Jul 9, Jul 11, Jul 31, Aug 1, Aug 2, Aug 3, Aug 14, Aug 16, Aug 17

1. Total Run Analyzed [7242] is less than total observed during the period [7333]. Only fish observed on days with River Parameter data are analyzed.