Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2018
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 2 - Jul 16)
Total Number of Fish Observed679
Percent of Total Run Analyzed [Number Observed]100 % [679]
Tailrace TDG Percent Exposure Index120.84 %
Percent of Fish Exposed [Number Exposed]59.2 % [402]
Number of Days Fish Exposed24
Middle 80% of Run Period (Apr 18 - May 24)
Number of Fish Observed558
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [558]
Tailrace TDG Percent Exposure Index120.73 %
Percent of Fish Exposed [Number Exposed]60.7 % [339]
Number of Days Fish Exposed14
Middle 50% of Run Period (May 2 - May 19)
Number of Fish Observed355
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [355]
Tailrace TDG Percent Exposure Index120.81 %
Percent of Fish Exposed [Number Exposed]69.5 % [247]
Number of Days Fish Exposed9
Run Dates
First Day of RunApr 2
5% of Run passedApr 15
10% of Run passedApr 18
50% of Run passedMay 11
90% of Run passedMay 24
95% of Run passedMay 29
Last Day of RunJul 16
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 11, Apr 12, Apr 15, Apr 16, May 7, May 8, May 9, May 12, May 15, Jun 3