Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Summer Steelhead Query Parameters
Year2016
ProjectJohn Day
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 22 - Jun 17)
Total Number of Fish Observed3355
Percent of Total Run Analyzed [Number Observed]100 % [3355]
Tailrace TDG Percent Exposure Index116.86 %
Percent of Fish Exposed [Number Exposed]86.2 % [2893]
Number of Days Fish Exposed39
Middle 80% of Run Period (Apr 18 - May 17)
Number of Fish Observed2742
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [2742]
Tailrace TDG Percent Exposure Index117.59 %
Percent of Fish Exposed [Number Exposed]98 % [2689]
Number of Days Fish Exposed28
Middle 50% of Run Period (Apr 23 - May 8)
Number of Fish Observed1835
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1835]
Tailrace TDG Percent Exposure Index117.66 %
Percent of Fish Exposed [Number Exposed]100 % [1835]
Number of Days Fish Exposed16
Run Dates
First Day of RunMar 22
5% of Run passedApr 13
10% of Run passedApr 18
50% of Run passedApr 28
90% of Run passedMay 17
95% of Run passedMay 23
Last Day of RunJun 17
Date(s) When Tailrace TDG Percent Crosses 115 %
Apr 14, May 14, May 16, May 18, May 20, May 22, May 24, May 26, Jun 5, Jun 7, Jun 8, Jun 10