Columbia Basin Performance Measures

PIT Tag Exposure Results

graph

PIT-Tagged Wild Spring/Summer Chinook Query Parameters
Year2019
ProjectLower Granite
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 25 - Jul 2)
Total Number of Fish Observed7224
Percent of Total Run Analyzed [Number Observed]100 % [7224]
Tailrace TDG Percent Exposure Index118.61 %
Percent of Fish Exposed [Number Exposed]27.9 % [2018]
Number of Days Fish Exposed10
Middle 80% of Run Period (Apr 10 - May 19)
Number of Fish Observed6080
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [6080]
Tailrace TDG Percent Exposure Index119.39 %
Percent of Fish Exposed [Number Exposed]32.3 % [1966]
Number of Days Fish Exposed9
Middle 50% of Run Period (Apr 20 - May 11)
Number of Fish Observed3666
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [3666]
Tailrace TDG Percent Exposure Index119.54 %
Percent of Fish Exposed [Number Exposed]36.9 % [1356]
Number of Days Fish Exposed6
Run Dates
First Day of RunMar 25
5% of Run passedApr 8
10% of Run passedApr 10
50% of Run passedApr 28
90% of Run passedMay 19
95% of Run passedMay 30
Last Day of RunJul 2
Date(s) When Tailrace TDG Percent Crosses 120 %
Apr 10, Apr 12, Apr 21, Apr 27, May 18, May 19, Jun 2, Jun 3