Columbia Basin Performance Measures

PIT Tag Exposure Results

graph
PIT-Tagged Wild Summer Steelhead Query Parameters
Year2024
ProjectBonneville
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 ( - )
Total Number of Fish Observed2211
Percent of Total Run Analyzed [Number Observed]99.77 % [2206]1
Tailrace TDG Percent Exposure Index119.26 %
Percent of Fish Exposed [Number Exposed]46.1 % [1019]
Number of Days Fish Exposed21
Middle 80% of Run Period ( - )
Number of Fish Observed1814
Percent of Middle 80% of Run Analyzed [Number Observed]100 % [1814]
Tailrace TDG Percent Exposure Index119.39 %
Percent of Fish Exposed [Number Exposed]48.3 % [877]
Number of Days Fish Exposed14
Middle 50% of Run Period ( - )
Number of Fish Observed1139
Percent of Middle 50% of Run Analyzed [Number Observed]100 % [1139]
Tailrace TDG Percent Exposure Index119.93 %
Percent of Fish Exposed [Number Exposed]64.3 % [733]
Number of Days Fish Exposed9
Run Dates
First Day of Run
5% of Run passed
10% of Run passed
50% of Run passed
90% of Run passed
95% of Run passed
Last Day of Run
Date(s) When Tailrace TDG Percent Crosses 120 %
1. Total Run Analyzed [2206] is less than total observed during the period [2211]. Only fish observed on days with River Parameter data are analyzed.