Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2021
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 22 - Jul 14)
Total Number of Fish Observed412
Percent of Total Run Analyzed [Number Observed]100 % [412]
Tailrace TDG Percent Exposure Index118.53 %
Percent of Fish Exposed [Number Exposed]19.6 % [81]
Number of Days Fish Exposed10
Middle 80% of Run Period (Apr 12 - May 23)
Number of Fish Observed344
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [344]
Tailrace TDG Percent Exposure Index118.96 %
Percent of Fish Exposed [Number Exposed]21.5 % [74]
Number of Days Fish Exposed7
Middle 50% of Run Period (Apr 29 - May 16)
Number of Fish Observed219
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [219]
Tailrace TDG Percent Exposure Index119.24 %
Percent of Fish Exposed [Number Exposed]16.8 % [37]
Number of Days Fish Exposed3
Run Dates
First Day of RunMar 22
5% of Run passedApr 11
10% of Run passedApr 12
50% of Run passedMay 7
90% of Run passedMay 23
95% of Run passedMay 28
Last Day of RunJul 14
Date(s) When Tailrace TDG Percent Crosses 120 %
May 2, May 4, May 16, May 21, Jun 2, Jun 8