Roy
Mahnomen County, Minnesota — DOW #44000100
211 Surveys
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Roy.
Green = above normal range. Red = below normal.
Black Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard trap nets | 0.1 (below normal) | 1.1 – 17.4 | 0.17 lb | 1 |
| 2002-07-15 | Standard gill nets | 0.1 (below normal) | 1.9 – 57.5 | 0.73 lb | 1 |
| 1992-07-13 | Standard trap nets | 0.4 (below normal) | 1.1 – 17.4 | 0.50 lb | 4 |
| 1992-07-13 | Standard gill nets | 0.8 (below normal) | 1.9 – 57.5 | 0.70 lb | 5 |
| 2012-07-23 | Standard gill nets | 0.3 (below normal) | 1.9 – 57.5 | 0.60 lb | 2 |
| 2007-07-02 | Standard gill nets | 0.1 (below normal) | 1.9 – 57.5 | 0.40 lb | 1 |
| 1987-07-13 | Standard trap nets | 0.3 (below normal) | 1.1 – 17.4 | 0.30 lb | 4 |
| 1987-07-13 | Standard gill nets | 0.5 (below normal) | 1.9 – 57.5 | 3.67 lb | 3 |
| 1974-07-22 | Standard trap nets | 3.7 (normal) | 1.1 – 17.4 | 0.18 lb | 33 |
| 1974-07-22 | Standard gill nets | 5.7 (normal) | 1.9 – 57.5 | 0.13 lb | 17 |
Brown Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard trap nets | 6.6 (normal) | 1.5 – 9.8 | 0.33 lb | 73 |
| 2002-07-15 | Standard gill nets | 25.2 (above normal) | 1.5 – 9.9 | 0.36 lb | 302 |
| 2022-07-18 | Standard trap nets | 0.5 (below normal) | 1.5 – 9.8 | 0.66 lb | 5 |
| 2022-07-18 | Standard gill nets | 1.1 (below normal) | 1.5 – 9.9 | 0.97 lb | 10 |
| 1954-08-05 | Standard gill nets | 34.8 (above normal) | 1.5 – 9.9 | 0.27 lb | 209 |
| 1954-08-05 | Standard trap nets | 11.5 (above normal) | 1.5 – 9.8 | 0.30 lb | 69 |
| 1992-07-13 | Standard trap nets | 0.1 (below normal) | 1.5 – 9.8 | 0.50 lb | 1 |
| 1992-07-13 | Standard gill nets | 1.5 (normal) | 1.5 – 9.9 | 0.64 lb | 9 |
| 2012-07-23 | Standard gill nets | 6.4 (normal) | 1.5 – 9.9 | 0.62 lb | 51 |
| 2017-07-17 | Standard gill nets | 2.8 (normal) | 1.5 – 9.9 | 0.75 lb | 25 |
| 2007-07-02 | Standard trap nets | 2.2 (normal) | 1.5 – 9.8 | 0.50 lb | 26 |
| 2007-07-02 | Standard gill nets | 6.4 (normal) | 1.5 – 9.9 | 0.47 lb | 77 |
| 1987-07-13 | Standard trap nets | 4.8 (normal) | 1.5 – 9.8 | 0.29 lb | 57 |
| 1987-07-13 | Standard gill nets | 2.0 (normal) | 1.5 – 9.9 | 0.33 lb | 12 |
| 1974-07-22 | Standard trap nets | 258.7 (above normal) | 1.5 – 9.8 | 0.15 lb | 2328 |
| 1974-07-22 | Standard gill nets | 46.3 (above normal) | 1.5 – 9.9 | 0.14 lb | 139 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard trap nets | 2.5 (normal) | 0.8 – 4.5 | 0.24 lb | 27 |
| 2002-07-15 | Standard gill nets | 43.8 (above normal) | 8.0 – 40.3 | 0.25 lb | 525 |
| 2022-07-18 | Standard trap nets | 0.4 (below normal) | 0.8 – 4.5 | 0.28 lb | 4 |
| 2022-07-18 | Standard gill nets | 5.2 (below normal) | 8.0 – 40.3 | 0.21 lb | 47 |
| 1954-08-05 | Standard trap nets | 6.3 (above normal) | 0.8 – 4.5 | 0.21 lb | 38 |
| 1954-08-05 | Standard gill nets | 20.8 (normal) | 8.0 – 40.3 | 0.16 lb | 125 |
| 1992-07-13 | Standard trap nets | 2.8 (normal) | 0.8 – 4.5 | 0.08 lb | 31 |
| 1992-07-13 | Standard gill nets | 25.7 (normal) | 8.0 – 40.3 | 0.11 lb | 154 |
| 2012-07-23 | Standard gill nets | 0.4 (below normal) | 8.0 – 40.3 | 0.10 lb | 3 |
| 2023-07-17 | Backpack electrofishing | 2.3 | — | — | 4 |
| 2023-07-17 | 15-ft beach seine | 0.5 | — | — | 1 |
| 2023-07-17 | 50-ft beach seine | 30.5 | — | — | 244 |
| 2017-07-17 | Standard trap nets | 1.1 (normal) | 0.8 – 4.5 | 0.07 lb | 11 |
| 2017-07-17 | Standard gill nets | 10.4 (normal) | 8.0 – 40.3 | 0.08 lb | 94 |
| 2007-07-02 | Standard trap nets | 0.2 (below normal) | 0.8 – 4.5 | 0.21 lb | 2 |
| 2007-07-02 | Standard gill nets | 2.3 (below normal) | 8.0 – 40.3 | 0.16 lb | 28 |
| 1987-07-13 | Standard trap nets | 3.8 (normal) | 0.8 – 4.5 | 0.11 lb | 46 |
| 1987-07-13 | Standard gill nets | 8.0 (normal) | 8.0 – 40.3 | 0.19 lb | 48 |
| 1974-07-22 | Standard trap nets | 1.9 (normal) | 0.8 – 4.5 | 0.22 lb | 17 |
| 1974-07-22 | Standard gill nets | 1.7 (below normal) | 8.0 – 40.3 | 0.33 lb | 5 |
Yellow Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 5.8 (above normal) | 0.6 – 5.0 | 0.42 lb | 70 |
| 2002-07-15 | Standard trap nets | 5.0 (normal) | 1.8 – 7.2 | 0.54 lb | 55 |
| 2022-07-18 | Standard gill nets | 6.9 (above normal) | 0.6 – 5.0 | 0.73 lb | 62 |
| 2022-07-18 | Standard trap nets | 4.6 (normal) | 1.8 – 7.2 | 0.67 lb | 51 |
| 1992-07-13 | Standard gill nets | 66.0 (above normal) | 0.6 – 5.0 | 0.39 lb | 396 |
| 1992-07-13 | Standard trap nets | 29.1 (above normal) | 1.8 – 7.2 | 0.37 lb | 320 |
| 2012-07-23 | Standard gill nets | 8.1 (above normal) | 0.6 – 5.0 | 0.55 lb | 65 |
| 2023-07-17 | 50-ft beach seine | 4.3 | — | — | 34 |
| 2017-07-17 | Standard gill nets | 10.4 (above normal) | 0.6 – 5.0 | 0.58 lb | 94 |
| 2017-07-17 | Standard trap nets | 8.1 (above normal) | 1.8 – 7.2 | 0.54 lb | 81 |
| 2007-07-02 | Standard gill nets | 44.2 (above normal) | 0.6 – 5.0 | 0.45 lb | 530 |
| 2007-07-02 | Standard trap nets | 11.3 (above normal) | 1.8 – 7.2 | 0.39 lb | 135 |
| 1987-07-13 | Standard gill nets | 12.2 (above normal) | 0.6 – 5.0 | 0.48 lb | 73 |
| 1987-07-13 | Standard trap nets | 24.8 (above normal) | 1.8 – 7.2 | 0.41 lb | 298 |
| 1974-07-22 | Standard trap nets | 2.3 (normal) | 1.8 – 7.2 | 1.04 lb | 21 |
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 8.0 (normal) | 4.6 – 11.6 | 2.03 lb | 96 |
| 2002-07-15 | Standard trap nets | 0.6 | — | 0.69 lb | 6 |
| 2022-07-18 | Standard gill nets | 16.3 (above normal) | 4.6 – 11.6 | 2.87 lb | 147 |
| 2022-07-18 | Standard trap nets | 1.1 | — | 3.50 lb | 12 |
| 1954-08-05 | Standard gill nets | 2.0 (below normal) | 4.6 – 11.6 | 2.65 lb | 12 |
| 1954-08-05 | Standard trap nets | 0.2 | — | 1.20 lb | 1 |
| 1992-07-13 | Standard gill nets | 7.8 (normal) | 4.6 – 11.6 | 3.34 lb | 47 |
| 1992-07-13 | Standard trap nets | 0.3 | — | 1.37 lb | 3 |
| 2012-07-23 | Standard gill nets | 12.8 (above normal) | 4.6 – 11.6 | 1.97 lb | 102 |
| 2017-07-17 | Standard gill nets | 13.0 (above normal) | 4.6 – 11.6 | 3.04 lb | 117 |
| 2017-07-17 | Standard trap nets | 0.7 | — | 2.77 lb | 7 |
| 2007-07-02 | Standard gill nets | 19.9 (above normal) | 4.6 – 11.6 | 2.22 lb | 239 |
| 2007-07-02 | Standard trap nets | 1.3 | — | 2.38 lb | 15 |
| 1987-07-13 | Standard gill nets | 8.7 (normal) | 4.6 – 11.6 | 2.36 lb | 52 |
| 1987-07-13 | Standard trap nets | 0.2 | — | 2.60 lb | 2 |
| 1974-07-22 | Standard gill nets | 4.7 (normal) | 4.6 – 11.6 | 1.22 lb | 14 |
| 1974-07-22 | Standard trap nets | 0.7 | — | 1.25 lb | 6 |
Common Carp
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.4 | 7.99 lb | 3 |
| 2022-07-18 | Standard gill nets | 0.8 (normal) | 0.3 – 1.3 | 2.68 lb | 7 |
| 2022-07-18 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.4 | 0.77 lb | 3 |
| 1992-07-13 | Standard gill nets | 0.3 (normal) | 0.3 – 1.3 | 2.80 lb | 2 |
| 1992-07-13 | Standard trap nets | 0.7 (normal) | 0.3 – 1.4 | 4.00 lb | 8 |
| 2017-07-17 | Standard trap nets | 0.4 (normal) | 0.3 – 1.4 | 11.26 lb | 4 |
| 2007-07-02 | Standard gill nets | 0.1 (below normal) | 0.3 – 1.3 | 2.16 lb | 1 |
| 2007-07-02 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.4 | 5.25 lb | 1 |
Walleye
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 7.9 (above normal) | 1.5 – 5.8 | 1.65 lb | 95 |
| 2002-07-15 | Standard trap nets | 0.6 (normal) | 0.3 – 0.8 | 2.26 lb | 6 |
| 2022-07-18 | Standard gill nets | 4.7 (normal) | 1.5 – 5.8 | 1.76 lb | 42 |
| 2022-07-18 | Standard trap nets | 0.1 (below normal) | 0.3 – 0.8 | 0.60 lb | 1 |
| 1954-08-05 | Standard gill nets | 14.2 (above normal) | 1.5 – 5.8 | 1.20 lb | 85 |
| 1954-08-05 | Standard trap nets | 2.7 (above normal) | 0.3 – 0.8 | 2.10 lb | 16 |
| 1992-07-13 | Standard gill nets | 0.5 (below normal) | 1.5 – 5.8 | 18.87 lb | 3 |
| 1992-07-13 | Standard trap nets | 0.3 (below normal) | 0.3 – 0.8 | 0.27 lb | 3 |
| 2012-07-23 | Standard gill nets | 7.5 (above normal) | 1.5 – 5.8 | 1.58 lb | 60 |
| 2017-07-17 | Standard gill nets | 4.2 (normal) | 1.5 – 5.8 | 1.64 lb | 38 |
| 2017-07-17 | Standard trap nets | 0.1 (below normal) | 0.3 – 0.8 | 7.64 lb | 1 |
| 2007-07-02 | Standard gill nets | 7.8 (above normal) | 1.5 – 5.8 | 1.86 lb | 93 |
| 1987-07-13 | Standard gill nets | 6.8 (above normal) | 1.5 – 5.8 | 2.05 lb | 41 |
| 1987-07-13 | Standard trap nets | 0.2 (below normal) | 0.3 – 0.8 | 0.10 lb | 2 |
| 1974-07-22 | Standard gill nets | 7.7 (above normal) | 1.5 – 5.8 | 0.66 lb | 23 |
| 1974-07-22 | Standard trap nets | 0.6 (normal) | 0.3 – 0.8 | 1.20 lb | 5 |
Hybrid Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard trap nets | 0.3 | — | 0.27 lb | 3 |
| 2022-07-18 | Standard gill nets | 1.0 | — | 0.19 lb | 9 |
| 2022-07-18 | Standard trap nets | 5.9 | — | 0.23 lb | 65 |
| 1992-07-13 | Standard trap nets | 1.8 | — | 0.22 lb | 20 |
| 2023-07-17 | 15-ft beach seine | 1.0 | — | — | 2 |
| 2023-07-17 | 50-ft beach seine | 1.0 | — | — | 8 |
| 2023-07-17 | Backpack electrofishing | 4.6 | — | — | 8 |
| 2017-07-17 | Standard gill nets | 1.0 | — | 0.19 lb | 9 |
| 2017-07-17 | Standard trap nets | 3.2 | — | 0.13 lb | 32 |
| 2007-07-02 | Standard gill nets | 0.1 | — | 0.33 lb | 1 |
| 2007-07-02 | Standard trap nets | 0.4 | — | 0.25 lb | 5 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 0.1 (below normal) | 0.3 – 1.3 | 0.11 lb | 1 |
| 2002-07-15 | Standard trap nets | 1.3 (above normal) | 0.3 – 0.9 | 0.28 lb | 14 |
| 2022-07-18 | Standard gill nets | 2.6 (above normal) | 0.3 – 1.3 | 1.48 lb | 23 |
| 2022-07-18 | Standard trap nets | 0.9 (above normal) | 0.3 – 0.9 | 1.01 lb | 10 |
| 1954-08-05 | Standard trap nets | 0.2 (below normal) | 0.3 – 0.9 | 1.20 lb | 1 |
| 1992-07-13 | Standard gill nets | 6.7 (above normal) | 0.3 – 1.3 | 1.09 lb | 40 |
| 1992-07-13 | Standard trap nets | 3.2 (above normal) | 0.3 – 0.9 | 0.36 lb | 35 |
| 2012-07-23 | Standard electrofishing | 18.6 | — | 1.18 lb | 25 |
| 2012-07-23 | Standard gill nets | 7.5 (above normal) | 0.3 – 1.3 | 1.34 lb | 60 |
| 2023-07-17 | Backpack electrofishing | 53.7 | — | — | 94 |
| 2023-07-17 | 15-ft beach seine | 28.0 | — | — | 56 |
| 2023-07-17 | 50-ft beach seine | 26.9 | — | — | 215 |
| 2017-07-17 | Standard gill nets | 6.2 (above normal) | 0.3 – 1.3 | 1.55 lb | 56 |
| 2017-07-17 | Standard trap nets | 2.5 (above normal) | 0.3 – 0.9 | 0.78 lb | 25 |
| 2007-07-02 | Standard gill nets | 7.4 (above normal) | 0.3 – 1.3 | 1.06 lb | 89 |
| 2007-07-02 | Standard trap nets | 1.7 (above normal) | 0.3 – 0.9 | 0.65 lb | 20 |
| 1987-07-13 | Standard gill nets | 8.3 (above normal) | 0.3 – 1.3 | 0.99 lb | 50 |
| 1987-07-13 | Standard trap nets | 7.8 (above normal) | 0.3 – 0.9 | 0.26 lb | 94 |
| 1974-07-22 | Standard trap nets | 0.9 (normal) | 0.3 – 0.9 | 0.57 lb | 8 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 5.0 | — | 0.20 lb | 60 |
| 2002-07-15 | Standard trap nets | 43.5 (above normal) | 2.5 – 25.0 | 0.09 lb | 478 |
| 2022-07-18 | Standard gill nets | 78.7 | — | 0.17 lb | 708 |
| 2022-07-18 | Standard trap nets | 102.8 (above normal) | 2.5 – 25.0 | 0.05 lb | 1131 |
| 1992-07-13 | Standard gill nets | 125.0 | — | 0.15 lb | 750 |
| 1992-07-13 | Standard trap nets | 92.3 (above normal) | 2.5 – 25.0 | 0.15 lb | 1015 |
| 2012-07-23 | Standard gill nets | 35.9 | — | 0.09 lb | 287 |
| 2023-07-17 | Backpack electrofishing | 8.6 | — | — | 15 |
| 2023-07-17 | 15-ft beach seine | 2.5 | — | — | 5 |
| 2023-07-17 | 50-ft beach seine | 6.8 | — | — | 54 |
| 2017-07-17 | Standard gill nets | 39.2 | — | 0.08 lb | 353 |
| 2017-07-17 | Standard trap nets | 51.6 (above normal) | 2.5 – 25.0 | 0.05 lb | 516 |
| 2007-07-02 | Standard gill nets | 33.0 | — | 0.09 lb | 396 |
| 2007-07-02 | Standard trap nets | 30.7 (above normal) | 2.5 – 25.0 | 0.08 lb | 368 |
| 1987-07-13 | Standard gill nets | 20.3 | — | 0.10 lb | 122 |
| 1987-07-13 | Standard trap nets | 57.5 (above normal) | 2.5 – 25.0 | 0.09 lb | 690 |
| 1974-07-22 | Standard trap nets | 1.3 (below normal) | 2.5 – 25.0 | 0.35 lb | 12 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 37.5 | — | 0.15 lb | 450 |
| 2002-07-15 | Standard trap nets | 47.3 (above normal) | 1.4 – 8.6 | 0.06 lb | 520 |
| 2022-07-18 | Standard gill nets | 12.1 | — | 0.18 lb | 109 |
| 2022-07-18 | Standard trap nets | 10.0 (above normal) | 1.4 – 8.6 | 0.21 lb | 110 |
| 1992-07-13 | Standard gill nets | 11.7 | — | 0.12 lb | 70 |
| 1992-07-13 | Standard trap nets | 41.0 (above normal) | 1.4 – 8.6 | 0.11 lb | 451 |
| 2012-07-23 | Standard gill nets | 8.3 | — | 0.11 lb | 66 |
| 2023-07-17 | Backpack electrofishing | 5.7 | — | — | 10 |
| 2023-07-17 | 50-ft beach seine | 0.8 | — | — | 6 |
| 2017-07-17 | Standard gill nets | 5.7 | — | 0.11 lb | 51 |
| 2017-07-17 | Standard trap nets | 2.5 (normal) | 1.4 – 8.6 | 0.10 lb | 25 |
| 2007-07-02 | Standard gill nets | 44.6 | — | 0.13 lb | 535 |
| 2007-07-02 | Standard trap nets | 10.7 (above normal) | 1.4 – 8.6 | 0.14 lb | 128 |
| 1987-07-13 | Standard gill nets | 43.8 | — | 0.13 lb | 263 |
| 1987-07-13 | Standard trap nets | 23.4 (above normal) | 1.4 – 8.6 | 0.13 lb | 281 |
| 1974-07-22 | Standard trap nets | 20.6 (above normal) | 1.4 – 8.6 | 0.19 lb | 185 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 2.1 (normal) | 1.0 – 5.5 | 1.60 lb | 25 |
| 2002-07-15 | Standard trap nets | 0.1 (below normal) | 0.4 – 1.5 | 3.97 lb | 1 |
| 2022-07-18 | Standard gill nets | 0.3 (below normal) | 1.0 – 5.5 | 2.53 lb | 3 |
| 1954-08-05 | Standard gill nets | 0.8 (below normal) | 1.0 – 5.5 | 1.08 lb | 5 |
| 1992-07-13 | Standard gill nets | 1.2 (normal) | 1.0 – 5.5 | 2.76 lb | 7 |
| 2012-07-23 | Standard gill nets | 1.4 (normal) | 1.0 – 5.5 | 2.78 lb | 11 |
| 2017-07-17 | Standard gill nets | 1.3 (normal) | 1.0 – 5.5 | 2.87 lb | 12 |
| 2007-07-02 | Standard gill nets | 1.9 (normal) | 1.0 – 5.5 | 2.41 lb | 23 |
| 2007-07-02 | Standard trap nets | 0.1 (below normal) | 0.4 – 1.5 | 2.09 lb | 1 |
| 1987-07-13 | Standard gill nets | 2.7 (normal) | 1.0 – 5.5 | 2.20 lb | 16 |
| 1974-07-22 | Standard gill nets | 0.3 (below normal) | 1.0 – 5.5 | 2.50 lb | 1 |
| 1974-07-22 | Standard trap nets | 1.0 (normal) | 0.4 – 1.5 | 3.17 lb | 9 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-07-15 | Standard gill nets | 0.3 (below normal) | 1.0 – 7.3 | 1.02 lb | 3 |
| 2022-07-18 | Standard gill nets | 10.9 (above normal) | 1.0 – 7.3 | 0.25 lb | 98 |
| 2022-07-18 | Standard trap nets | 8.1 (above normal) | 0.8 – 6.5 | 0.32 lb | 89 |
| 1954-08-05 | Standard gill nets | 0.2 (below normal) | 1.0 – 7.3 | 0.12 lb | 1 |
| 1954-08-05 | Standard trap nets | 1.0 (normal) | 0.8 – 6.5 | 0.80 lb | 6 |
| 1992-07-13 | Standard gill nets | 5.7 (normal) | 1.0 – 7.3 | 0.15 lb | 34 |
| 1992-07-13 | Standard trap nets | 0.4 (below normal) | 0.8 – 6.5 | 0.20 lb | 4 |
| 2012-07-23 | Standard gill nets | 9.6 (above normal) | 1.0 – 7.3 | 0.12 lb | 77 |
| 2012-07-23 | Standard electrofishing | 23.7 | — | 0.30 lb | 32 |
| 2023-07-17 | Backpack electrofishing | 2.9 | — | — | 5 |
| 2023-07-17 | 15-ft beach seine | 15.5 | — | — | 31 |
| 2023-07-17 | 50-ft beach seine | 28.6 | — | — | 229 |
| 2017-07-17 | Standard gill nets | 4.2 (normal) | 1.0 – 7.3 | 0.14 lb | 38 |
| 2017-07-17 | Standard trap nets | 1.2 (normal) | 0.8 – 6.5 | 0.29 lb | 12 |
| 2007-07-02 | Standard gill nets | 7.0 (normal) | 1.0 – 7.3 | 0.12 lb | 84 |
| 2007-07-02 | Standard trap nets | 11.8 (above normal) | 0.8 – 6.5 | 0.14 lb | 141 |
| 1987-07-13 | Standard gill nets | 1.8 (normal) | 1.0 – 7.3 | 0.18 lb | 11 |
| 1987-07-13 | Standard trap nets | 1.8 (normal) | 0.8 – 6.5 | 0.13 lb | 22 |
| 1974-07-22 | Standard gill nets | 1.3 (normal) | 1.0 – 7.3 | 0.46 lb | 4 |
| 1974-07-22 | Standard trap nets | 1.0 (normal) | 0.8 – 6.5 | 0.32 lb | 9 |
Rock Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1954-08-05 | Standard trap nets | 0.2 (below normal) | 0.3 – 1.4 | 0.60 lb | 1 |
Smallmouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1954-08-05 | Standard trap nets | 0.2 | — | 3.00 lb | 1 |
CNM
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2023-07-17 | Backpack electrofishing | 5.1 | — | 9 |
BNS
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2023-07-17 | 50-ft beach seine | 1.6 | — | 13 |
Green Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2023-07-17 | Backpack electrofishing | 6.9 | — | — | 12 |
| 2023-07-17 | 50-ft beach seine | 0.1 | — | — | 1 |
| 1974-07-22 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.5 | 0.80 lb | 1 |
Tadpole Madtom
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2023-07-17 | Backpack electrofishing | 0.6 | — | 1 |
| 2023-07-17 | 50-ft beach seine | 0.3 | — | 2 |
Iowa Darter
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2023-07-17 | 15-ft beach seine | 3.0 | — | 6 |
| 2023-07-17 | 50-ft beach seine | 5.8 | — | 46 |
| 2023-07-17 | Backpack electrofishing | 26.9 | — | 47 |
Bluntnose Minnow
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2023-07-17 | 50-ft beach seine | 0.1 | — | 1 |
BST
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2023-07-17 | 15-ft beach seine | 0.5 | — | 1 |
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Fish Species
Species known to inhabit Roy. Click any species for a full fishing guide.
Other Lakes in Mahnomen County
Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026.
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