Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2019
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 12 - Dec 14)
Total Number of Fish Observed5039
Percent of Total Run Analyzed [Number Observed]100 % [5039]
Tailrace TDG Percent Exposure Index119.73 %
Percent of Fish Exposed [Number Exposed]30.7 % [1549]
Number of Days Fish Exposed19
Middle 80% of Run Period (Apr 18 - May 19)
Number of Fish Observed4086
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [4086]
Tailrace TDG Percent Exposure Index119.75 %
Percent of Fish Exposed [Number Exposed]32.3 % [1322]
Number of Days Fish Exposed7
Middle 50% of Run Period (Apr 23 - May 13)
Number of Fish Observed2623
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [2623]
Tailrace TDG Percent Exposure Index119.71 %
Percent of Fish Exposed [Number Exposed]31.6 % [829]
Number of Days Fish Exposed4
Run Dates
First Day of RunMar 12
5% of Run passedApr 14
10% of Run passedApr 18
50% of Run passedApr 29
90% of Run passedMay 19
95% of Run passedMay 23
Last Day of RunDec 14
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 6, Apr 7, Apr 9, Apr 13, Apr 21, Apr 24, Apr 25, Apr 28, May 18, May 19, May 31, Jun 8