Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2017
ProjectLower Granite
River ParameterTailrace TDG Percent
Critical Tailrace TDG Percent Value115 %
Calculate ExposureAbove Critical Value
River Parameter Data FillNo
Query Dates1/1 - 12/31
Total Run Period (Mar 20 - Jul 7)
Total Number of Fish Observed4963
Percent of Total Run Analyzed [Number Observed]100 % [4963]
Tailrace TDG Percent Exposure Index121.55 %
Percent of Fish Exposed [Number Exposed]92 % [4568]
Number of Days Fish Exposed84
Middle 80% of Run Period (Apr 20 - May 25)
Number of Fish Observed3988
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [3988]
Tailrace TDG Percent Exposure Index121.44 %
Percent of Fish Exposed [Number Exposed]91.3 % [3642]
Number of Days Fish Exposed32
Middle 50% of Run Period (Apr 29 - May 18)
Number of Fish Observed2615
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [2615]
Tailrace TDG Percent Exposure Index122.44 %
Percent of Fish Exposed [Number Exposed]89.7 % [2346]
Number of Days Fish Exposed17
Run Dates
First Day of RunMar 20
5% of Run passedApr 14
10% of Run passedApr 20
50% of Run passedMay 8
90% of Run passedMay 25
95% of Run passedMay 30
Last Day of RunJul 7
Date(s) When Tailrace TDG Percent Crosses 115 %
May 1, May 2, May 3, May 5, May 20, May 21, Jun 16, Jun 17, Jun 18, Jun 19, Jun 20, Jun 21, Jun 22