Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook 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 (Apr 6 - Nov 23)
Total Number of Fish Observed6419
Percent of Total Run Analyzed [Number Observed]100 % [6419]
Tailrace TDG Percent Exposure Index117.35 %
Percent of Fish Exposed [Number Exposed]93.1 % [5982]
Number of Days Fish Exposed39
Middle 80% of Run Period (Apr 22 - May 11)
Number of Fish Observed5252
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [5252]
Tailrace TDG Percent Exposure Index117.68 %
Percent of Fish Exposed [Number Exposed]100 % [5252]
Number of Days Fish Exposed20
Middle 50% of Run Period (Apr 24 - May 2)
Number of Fish Observed3460
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3460]
Tailrace TDG Percent Exposure Index117.67 %
Percent of Fish Exposed [Number Exposed]100 % [3460]
Number of Days Fish Exposed9
Run Dates
First Day of RunApr 6
5% of Run passedApr 19
10% of Run passedApr 22
50% of Run passedApr 27
90% of Run passedMay 11
95% of Run passedMay 19
Last Day of RunNov 23
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