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 - Jul 5)
Total Number of Fish Observed6687
Percent of Total Run Analyzed [Number Observed]100 % [6687]
Tailrace TDG Percent Exposure Index117.94 %
Percent of Fish Exposed [Number Exposed]19.7 % [1320]
Number of Days Fish Exposed21
Middle 80% of Run Period (Apr 15 - May 18)
Number of Fish Observed5564
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [5564]
Tailrace TDG Percent Exposure Index117.63 %
Percent of Fish Exposed [Number Exposed]14 % [782]
Number of Days Fish Exposed7
Middle 50% of Run Period (Apr 18 - May 9)
Number of Fish Observed3778
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3778]
Tailrace TDG Percent Exposure Index117.25 %
Percent of Fish Exposed [Number Exposed]8.1 % [309]
Number of Days Fish Exposed2
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 RunJul 5
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