Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook 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 22 - Jul 7)
Total Number of Fish Observed7433
Percent of Total Run Analyzed [Number Observed]96.95 % [7207]1
Tailrace TDG Percent Exposure Index120.68 %
Percent of Fish Exposed [Number Exposed]99.9 % [7204]
Number of Days Fish Exposed91
Middle 80% of Run Period (Apr 15 - May 14)
Number of Fish Observed6187
Percent of Middle 80% of Run Analyzed [Number Observed]96.34 % [5961]
Tailrace TDG Percent Exposure Index120.46 %
Percent of Fish Exposed [Number Exposed]100 % [5961]
Number of Days Fish Exposed29
Middle 50% of Run Period (Apr 19 - May 3)
Number of Fish Observed3822
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3822]
Tailrace TDG Percent Exposure Index119.59 %
Percent of Fish Exposed [Number Exposed]100 % [3822]
Number of Days Fish Exposed15
Run Dates
First Day of RunMar 22
5% of Run passedApr 14
10% of Run passedApr 15
50% of Run passedApr 25
90% of Run passedMay 14
95% of Run passedMay 25
Last Day of RunJul 7
Date(s) When Tailrace TDG Percent Crosses 115 %
Jun 12, Jun 13, Jun 24, Jun 25, Jul 3, Jul 4

1. Total Run Analyzed [7207] is less than total observed during the period [7433]. Only fish observed on days with River Parameter data are analyzed.