Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2024
ProjectIce Harbor
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 (Apr 3 - Dec 31)
Total Number of Fish Observed301
Percent of Total Run Analyzed [Number Observed]100 % [301]
Tailrace TDG Percent Exposure Index116.62 %
Percent of Fish Exposed [Number Exposed]10.6 % [32]
Number of Days Fish Exposed7
Middle 80% of Run Period (Apr 24 - Jun 7)
Number of Fish Observed242
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [242]
Tailrace TDG Percent Exposure Index116.94 %
Percent of Fish Exposed [Number Exposed]9.9 % [24]
Number of Days Fish Exposed6
Middle 50% of Run Period (May 4 - May 25)
Number of Fish Observed153
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [153]
Tailrace TDG Percent Exposure Index117.18 %
Percent of Fish Exposed [Number Exposed]13 % [20]
Number of Days Fish Exposed4
Run Dates
First Day of RunApr 3
5% of Run passedApr 18
10% of Run passedApr 24
50% of Run passedMay 18
90% of Run passedJun 7
95% of Run passedJun 10
Last Day of RunDec 31
Date(s) When Tailrace TDG Percent Crosses 120 %
May 15, May 19, Jun 4, Jun 5, Jun 7, Jun 8, Jun 9, Jun 10