Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2024
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 21 - May 17)
Total Number of Fish Observed100
Percent of Total Run Analyzed [Number Observed]100 % [100]
Tailrace TDG Percent Exposure Index119.34 %
Percent of Fish Exposed [Number Exposed]48 % [48]
Number of Days Fish Exposed10
Middle 80% of Run Period (Apr 17 - May 16)
Number of Fish Observed82
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [82]
Tailrace TDG Percent Exposure Index119.54 %
Percent of Fish Exposed [Number Exposed]45.1 % [37]
Number of Days Fish Exposed8
Middle 50% of Run Period (Apr 21 - May 10)
Number of Fish Observed54
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [54]
Tailrace TDG Percent Exposure Index119.18 %
Percent of Fish Exposed [Number Exposed]37 % [20]
Number of Days Fish Exposed3
Run Dates
First Day of RunMar 21
5% of Run passedApr 1
10% of Run passedApr 17
50% of Run passedApr 28
90% of Run passedMay 16
95% of Run passedMay 17
Last Day of RunMay 17
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 16, Apr 18, Apr 27, May 1, May 13