Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2018
ProjectLower Monumental
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value120 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 20 - Jun 17)
Total Number of Fish Observed6668
Percent of Total Run Analyzed [Number Observed]100 % [6668]
Tailrace TDG Percent Exposure Index117.94 %
Percent of Fish Exposed [Number Exposed]19.7 % [1314]
Number of Days Fish Exposed21
Middle 80% of Run Period (Apr 15 - May 18)
Number of Fish Observed5563
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [5563]
Tailrace TDG Percent Exposure Index117.63 %
Percent of Fish Exposed [Number Exposed]14 % [781]
Number of Days Fish Exposed7
Middle 50% of Run Period (Apr 18 - May 8)
Number of Fish Observed3619
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3619]
Tailrace TDG Percent Exposure Index117.05 %
Percent of Fish Exposed [Number Exposed]4.1 % [149]
Number of Days Fish Exposed1
Run Dates
First Day of RunMar 20
5% of Run passedApr 13
10% of Run passedApr 15
50% of Run passedApr 29
90% of Run passedMay 18
95% of Run passedMay 23
Last Day of RunJun 17
Date(s) When Tailrace TDG Percent Crosses 120 %
May 7, May 8, May 9, May 12, May 15, May 16, May 17, May 31, Jun 1, Jun 3