Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2017
ProjectLower Granite
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 20)
Total Number of Fish Observed9275
Percent of Total Run Analyzed [Number Observed]100 % [9275]
Tailrace TDG Percent Exposure Index120.69 %
Percent of Fish Exposed [Number Exposed]89.6 % [8316]
Number of Days Fish Exposed85
Middle 80% of Run Period (Apr 12 - May 23)
Number of Fish Observed7561
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [7561]
Tailrace TDG Percent Exposure Index120.22 %
Percent of Fish Exposed [Number Exposed]88.7 % [6713]
Number of Days Fish Exposed37
Middle 50% of Run Period (Apr 16 - May 7)
Number of Fish Observed4851
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [4851]
Tailrace TDG Percent Exposure Index119.35 %
Percent of Fish Exposed [Number Exposed]94.1 % [4566]
Number of Days Fish Exposed19
Run Dates
First Day of RunMar 21
5% of Run passedApr 9
10% of Run passedApr 12
50% of Run passedApr 24
90% of Run passedMay 23
95% of Run passedMay 28
Last Day of RunJul 20
Date(s) When Tailrace TDG Percent Crosses 115 %
May 1, May 2, May 3, May 5, May 20, May 21, Jun 16, Jun 17, Jun 18, Jun 19, Jun 20, Jun 21, Jun 22