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 - Jul 4)
Total Number of Fish Observed7320
Percent of Total Run Analyzed [Number Observed]98.75 % [7229]1
Tailrace TDG Percent Exposure Index122.47 %
Percent of Fish Exposed [Number Exposed]99.4 % [7192]
Number of Days Fish Exposed96
Middle 80% of Run Period (Apr 18 - May 29)
Number of Fish Observed6015
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [6015]
Tailrace TDG Percent Exposure Index122.65 %
Percent of Fish Exposed [Number Exposed]100 % [6015]
Number of Days Fish Exposed42
Middle 50% of Run Period (May 1 - May 22)
Number of Fish Observed3859
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3859]
Tailrace TDG Percent Exposure Index123.74 %
Percent of Fish Exposed [Number Exposed]100 % [3859]
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 RunJul 4
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 12, Jun 13, Jun 24, Jun 25, Jul 3, Jul 4

1. Total Run Analyzed [7229] is less than total observed during the period [7320]. Only fish observed on days with River Parameter data are analyzed.