Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2017
ProjectIce Harbor
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 - Jun 27)
Total Number of Fish Observed1651
Percent of Total Run Analyzed [Number Observed]95.63 % [1579]1
Tailrace TDG Percent Exposure Index120.94 %
Percent of Fish Exposed [Number Exposed]100 % [1579]
Number of Days Fish Exposed76
Middle 80% of Run Period (Apr 14 - May 18)
Number of Fish Observed1341
Percent of Middle 80% of Run Analyzed [Number Observed]94.63 % [1269]
Tailrace TDG Percent Exposure Index120.87 %
Percent of Fish Exposed [Number Exposed]100 % [1269]
Number of Days Fish Exposed34
Middle 50% of Run Period (Apr 18 - May 5)
Number of Fish Observed859
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [859]
Tailrace TDG Percent Exposure Index119.91 %
Percent of Fish Exposed [Number Exposed]100 % [859]
Number of Days Fish Exposed18
Run Dates
First Day of RunMar 22
5% of Run passedApr 12
10% of Run passedApr 14
50% of Run passedApr 24
90% of Run passedMay 18
95% of Run passedMay 25
Last Day of RunJun 27

1. Total Run Analyzed [1579] is less than total observed during the period [1651]. Only fish observed on days with River Parameter data are analyzed.