Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead 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 19 - Jun 18)
Total Number of Fish Observed8089
Percent of Total Run Analyzed [Number Observed]100 % [8089]
Tailrace TDG Percent Exposure Index119.81 %
Percent of Fish Exposed [Number Exposed]31.4 % [2546]
Number of Days Fish Exposed20
Middle 80% of Run Period (Apr 19 - May 24)
Number of Fish Observed6567
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [6567]
Tailrace TDG Percent Exposure Index119.78 %
Percent of Fish Exposed [Number Exposed]29.5 % [1943]
Number of Days Fish Exposed7
Middle 50% of Run Period (Apr 25 - May 17)
Number of Fish Observed4414
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [4414]
Tailrace TDG Percent Exposure Index119.73 %
Percent of Fish Exposed [Number Exposed]25.5 % [1127]
Number of Days Fish Exposed3
Run Dates
First Day of RunMar 19
5% of Run passedApr 13
10% of Run passedApr 19
50% of Run passedMay 3
90% of Run passedMay 24
95% of Run passedMay 29
Last Day of RunJun 18
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