Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2019
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 26 - Jul 29)
Total Number of Fish Observed5652
Percent of Total Run Analyzed [Number Observed]100 % [5652]
Tailrace TDG Percent Exposure Index119.84 %
Percent of Fish Exposed [Number Exposed]35.1 % [1988]
Number of Days Fish Exposed17
Middle 80% of Run Period (Apr 15 - May 18)
Number of Fish Observed4593
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [4593]
Tailrace TDG Percent Exposure Index119.98 %
Percent of Fish Exposed [Number Exposed]36.5 % [1677]
Number of Days Fish Exposed8
Middle 50% of Run Period (Apr 21 - May 8)
Number of Fish Observed2877
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [2877]
Tailrace TDG Percent Exposure Index120.44 %
Percent of Fish Exposed [Number Exposed]53.5 % [1541]
Number of Days Fish Exposed7
Run Dates
First Day of RunMar 26
5% of Run passedApr 12
10% of Run passedApr 15
50% of Run passedApr 27
90% of Run passedMay 18
95% of Run passedMay 22
Last Day of RunJul 29
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 9, Apr 12, Apr 21, Apr 28, May 18, May 20, Jun 1, Jun 6