Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2016
ProjectBonneville
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 (Jan 14 - Dec 20)
Total Number of Fish Observed2708
Percent of Total Run Analyzed [Number Observed]99.77 % [2702]1
Tailrace TDG Percent Exposure Index118.9 %
Percent of Fish Exposed [Number Exposed]99 % [2676]
Number of Days Fish Exposed89
Middle 80% of Run Period (Apr 24 - May 19)
Number of Fish Observed2221
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [2221]
Tailrace TDG Percent Exposure Index119.1 %
Percent of Fish Exposed [Number Exposed]100 % [2221]
Number of Days Fish Exposed26
Middle 50% of Run Period (Apr 29 - May 10)
Number of Fish Observed1465
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1465]
Tailrace TDG Percent Exposure Index118.7 %
Percent of Fish Exposed [Number Exposed]100 % [1465]
Number of Days Fish Exposed12
Run Dates
First Day of RunJan 14
5% of Run passedApr 21
10% of Run passedApr 24
50% of Run passedMay 4
90% of Run passedMay 19
95% of Run passedMay 28
Last Day of RunDec 20
Date(s) When Tailrace TDG Percent Crosses 115 %
Apr 10, Jul 4, Jul 5, Aug 4, Aug 5, Aug 10, Aug 11, Aug 14, Aug 19, Aug 21, Sep 14

1. Total Run Analyzed [2702] is less than total observed during the period [2708]. Only fish observed on days with River Parameter data are analyzed.