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 - Dec 13)
Total Number of Fish Observed7487
Percent of Total Run Analyzed [Number Observed]96.96 % [7260]1
Tailrace TDG Percent Exposure Index120.67 %
Percent of Fish Exposed [Number Exposed]99.9 % [7255]
Number of Days Fish Exposed91
Middle 80% of Run Period (Apr 15 - May 14)
Number of Fish Observed6230
Percent of Middle 80% of Run Analyzed [Number Observed]96.35 % [6003]
Tailrace TDG Percent Exposure Index120.46 %
Percent of Fish Exposed [Number Exposed]100 % [6003]
Number of Days Fish Exposed29
Middle 50% of Run Period (Apr 19 - May 3)
Number of Fish Observed3857
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3857]
Tailrace TDG Percent Exposure Index119.59 %
Percent of Fish Exposed [Number Exposed]100 % [3857]
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 RunDec 13
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 [7260] is less than total observed during the period [7487]. Only fish observed on days with River Parameter data are analyzed.