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Upsilon Lake
Rolette County

June 2026
Percent of the total catch for each length category (inches)
 
2025
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 66.2 55 43 2 - - - - - - - - -
Northern Pike 20.9 - - - - 7 7 31 45 10 - - -
Bluegill 9.4 38 62 - - - - - - - - - -
Walleye 3.6 - - - 20 20 20 40 - - - - -
 
 
2024
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 60.3 41 55 4 - - - - - - - - -
Northern Pike 22.8 - - 6 3 - 6 55 29 - - - -
Walleye 12.5 - - - 6 6 41 41 6 - - - -
Bluegill 4.4 83 17 - - - - - - - - - -
 
 
2023
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 54.7 70 28 2 - - - - - - - - -
Northern Pike 22.1 - - - - - 16 42 32 11 - - -
Walleye 16.3 - - - - - 71 29 - - - - -
Bluegill 7.0 100 - - - - - - - - - - -
 
 
2022
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 49.3 47 53 - - - - - - - - - -
Northern Pike 41.1 - - - - 3 17 47 20 13 - - -
Walleye 5.5 - - - - 50 - 50 - - - - -
Black Crappie 1.4 100 - - - - - - - - - - -
Bluegill 1.4 - 100 - - - - - - - - - -
Fathead Minnow 1.4 - - - - - - - - - - - -
 
 
2021
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 61.6 51 48 2 - - - - - - - - -
Northern Pike 31.3 - - - - - 10 55 32 3 - - -
Bluegill 5.1 - 100 - - - - - - - - - -
Walleye 2.0 - - - - - 100 - - - - - -
 
 
2020
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 72.7 82 18 - - - - - - - - - -
Northern Pike 14.7 - - - - - 14 57 19 5 5 - -
Bluegill 9.1 77 23 - - - - - - - - - -
Walleye 2.8 - - - - 25 25 50 - - - - -
Black Crappie 0.7 - - - 100 - - - - - - - -
 
 
2019
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 51.7 87 13 - - - - - - - - - -
Northern Pike 36.2 - - - - - 24 48 14 10 5 - -
Bluegill 6.9 100 - - - - - - - - - - -
Walleye 5.2 - - - - - 100 - - - - - -
 
 
2018
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 45.7 54 39 5 2 - - - - - - - -
Walleye 20.2 - - - - 8 42 42 8 - - - -
Northern Pike 18.6 - - - - - 33 46 17 - - 4 -
Bluegill 15.5 75 20 - 5 - - - - - - - -
 
 
2017
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 56.8 57 28 13 2 - - - - - - - -
Northern Pike 18.5 - - - - 7 27 27 20 7 13 - -
Walleye 13.6 - - - - 18 27 55 - - - - -
Bluegill 11.1 44 - 56 - - - - - - - - -
 
 
2016
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 59.5 62 9 30 - - - - - - - - -
Northern Pike 26.6 - - - - 5 24 29 14 29 - - -
Walleye 11.4 - - - 11 11 44 22 11 - - - -
Bluegill 2.5 - - 100 - - - - - - - - -
 
 
2015
Survey Year
Percent
Catch
1-6 7-8 9-10 11-12 13-15 16-20 21-25 26-30 31-35 36-40 41-45 > 45
Yellow Perch 49.2 7 41 45 7 - - - - - - - -
Northern Pike 23.7 - - - - - 36 7 43 14 - - -
Walleye 18.6 - - - - 9 64 27 - - - - -
Bluegill 8.5 - 60 40 - - - - - - - - -
 
 
 
 
Length of Species Sampled - All Gears Combined
** May Contain Fish Not Measured