Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2020
ProjectLittle Goose
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 16 - Jun 25)
Total Number of Fish Observed938
Percent of Total Run Analyzed [Number Observed]100 % [938]
Tailrace TDG Percent Exposure Index121.42 %
Percent of Fish Exposed [Number Exposed]90.4 % [848]
Number of Days Fish Exposed42
Middle 80% of Run Period (Apr 27 - May 24)
Number of Fish Observed764
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [764]
Tailrace TDG Percent Exposure Index121.84 %
Percent of Fish Exposed [Number Exposed]100 % [764]
Number of Days Fish Exposed28
Middle 50% of Run Period (Apr 30 - May 21)
Number of Fish Observed585
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [585]
Tailrace TDG Percent Exposure Index121.88 %
Percent of Fish Exposed [Number Exposed]100 % [585]
Number of Days Fish Exposed22
Run Dates
First Day of RunMar 16
5% of Run passedApr 21
10% of Run passedApr 27
50% of Run passedMay 13
90% of Run passedMay 24
95% of Run passedMay 28
Last Day of RunJun 25
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 26, Jun 10, Jun 11, Jun 21