Island
Mahnomen County, Minnesota — DOW #44003800
195 Surveys
DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Island.
Green = above normal range. Red = below normal.
Black Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard trap nets | 0.3 (normal) | 0.3 – 2.8 | 0.82 lb | 4 |
| 1995-07-24 | Standard gill nets | 0.1 (below normal) | 0.6 – 9.5 | 0.17 lb | 1 |
| 2000-07-31 | Standard gill nets | 3.6 (normal) | 0.6 – 9.5 | 0.53 lb | 29 |
| 1981-07-16 | Standard gill nets | 23.8 (above normal) | 0.6 – 9.5 | 0.53 lb | 95 |
| 1981-07-16 | Standard trap nets | 0.5 (normal) | 0.3 – 2.8 | 0.60 lb | 4 |
| 1953-08-17 | Standard trap nets | 120.2 (above normal) | 0.3 – 2.8 | 0.46 lb | 721 |
| 2005-07-18 | Standard trap nets | 0.1 (below normal) | 0.3 – 2.8 | 0.13 lb | 1 |
| 2005-07-18 | Standard gill nets | 1.9 (normal) | 0.6 – 9.5 | 0.76 lb | 23 |
| 2020-07-27 | Standard gill nets | 0.1 (below normal) | 0.6 – 9.5 | 0.37 lb | 1 |
| 2010-07-26 | Standard gill nets | 0.6 (below normal) | 0.6 – 9.5 | 0.49 lb | 5 |
| 2010-07-26 | Backpack electrofishing | 10.9 | — | — | 7 |
| 1971-09-07 | Standard trap nets | 0.9 (normal) | 0.3 – 2.8 | 0.76 lb | 7 |
| 1971-09-07 | Standard gill nets | 15.5 (above normal) | 0.6 – 9.5 | 0.56 lb | 62 |
Brown Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard trap nets | 1.2 (normal) | 0.3 – 1.5 | 2.65 lb | 14 |
| 1995-07-24 | Standard gill nets | 0.1 (below normal) | 0.3 – 2.2 | 2.57 lb | 1 |
| 2000-07-31 | Standard trap nets | 3.9 (above normal) | 0.3 – 1.5 | 0.79 lb | 43 |
| 2000-07-31 | Standard gill nets | 1.0 (normal) | 0.3 – 2.2 | 1.00 lb | 8 |
| 1981-07-16 | Standard trap nets | 1.3 (normal) | 0.3 – 1.5 | 0.86 lb | 10 |
| 2022-07-27 | 50-ft beach seine | 0.1 | — | — | 1 |
| 2005-07-18 | Standard trap nets | 0.4 (normal) | 0.3 – 1.5 | 0.63 lb | 5 |
| 2005-07-18 | Standard gill nets | 1.6 (normal) | 0.3 – 2.2 | 1.18 lb | 19 |
| 2010-07-26 | Standard gill nets | 0.7 (normal) | 0.3 – 2.2 | 1.98 lb | 6 |
| 2010-07-26 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.5 | 1.89 lb | 3 |
| 1971-09-07 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.5 | 0.90 lb | 2 |
| 1971-09-07 | Standard gill nets | 0.5 (normal) | 0.3 – 2.2 | 1.35 lb | 2 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard trap nets | 3.3 (above normal) | 0.5 – 2.7 | 0.14 lb | 39 |
| 1995-07-24 | Standard gill nets | 74.4 (above normal) | 2.5 – 24.2 | 0.04 lb | 595 |
| 2000-07-31 | Standard trap nets | 3.1 (above normal) | 0.5 – 2.7 | 0.13 lb | 34 |
| 2000-07-31 | Survey seining | 8.8 | — | — | 35 |
| 2000-07-31 | Standard gill nets | 70.5 (above normal) | 2.5 – 24.2 | 0.06 lb | 564 |
| 1981-07-16 | Standard trap nets | 2.4 (normal) | 0.5 – 2.7 | 0.17 lb | 19 |
| 1981-07-16 | Standard gill nets | 75.5 (above normal) | 2.5 – 24.2 | 0.44 lb | 302 |
| 1953-08-17 | Standard gill nets | 198.2 (above normal) | 2.5 – 24.2 | 0.14 lb | 1189 |
| 2022-07-27 | Backpack electrofishing | 1.2 | — | — | 1 |
| 2022-07-27 | 50-ft beach seine | 4.4 | — | — | 57 |
| 2005-07-18 | Standard trap nets | 2.2 (normal) | 0.5 – 2.7 | 0.14 lb | 26 |
| 2005-07-18 | Standard gill nets | 31.2 (above normal) | 2.5 – 24.2 | 0.17 lb | 374 |
| 2020-07-27 | Standard trap nets | 1.3 (normal) | 0.5 – 2.7 | 0.20 lb | 15 |
| 2020-07-27 | Standard gill nets | 55.7 (above normal) | 2.5 – 24.2 | 0.20 lb | 501 |
| 2010-07-26 | 15-ft beach seine | 5.0 | — | — | 20 |
| 2010-07-26 | Standard gill nets | 28.9 (above normal) | 2.5 – 24.2 | 0.17 lb | 260 |
| 2010-07-26 | Backpack electrofishing | 3.1 | — | — | 2 |
| 2010-07-26 | Standard trap nets | 0.8 (normal) | 0.5 – 2.7 | 0.13 lb | 9 |
| 1971-09-07 | Standard trap nets | 15.0 (above normal) | 0.5 – 2.7 | 0.15 lb | 120 |
| 1971-09-07 | Standard gill nets | 71.5 (above normal) | 2.5 – 24.2 | 0.29 lb | 286 |
| 2015-07-20 | Standard trap nets | 1.2 (normal) | 0.5 – 2.7 | 0.16 lb | 14 |
| 2015-07-20 | Standard gill nets | 44.4 (above normal) | 2.5 – 24.2 | 0.15 lb | 400 |
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard gill nets | 5.1 (normal) | 3.1 – 8.5 | 2.37 lb | 41 |
| 1995-07-24 | Standard trap nets | 0.5 | — | 2.97 lb | 6 |
| 2000-07-31 | Standard gill nets | 14.3 (above normal) | 3.1 – 8.5 | 3.01 lb | 114 |
| 2000-07-31 | Standard trap nets | 0.7 | — | 2.19 lb | 8 |
| 1981-07-16 | Standard gill nets | 1.5 (below normal) | 3.1 – 8.5 | 0.83 lb | 6 |
| 1981-07-16 | Standard trap nets | 0.1 | — | 0.80 lb | 1 |
| 1953-08-17 | Standard gill nets | 4.2 (normal) | 3.1 – 8.5 | 2.58 lb | 25 |
| 2022-07-27 | 50-ft beach seine | 0.1 | — | — | 1 |
| 2022-07-27 | Backpack electrofishing | 1.2 | — | — | 1 |
| 2005-07-18 | Standard gill nets | 4.0 (normal) | 3.1 – 8.5 | 3.13 lb | 48 |
| 2020-07-27 | Standard gill nets | 8.1 (normal) | 3.1 – 8.5 | 2.80 lb | 73 |
| 2020-07-27 | Standard trap nets | 0.9 | — | 2.54 lb | 11 |
| 2010-07-26 | 15-ft beach seine | 0.3 | — | — | 1 |
| 2010-07-26 | Standard gill nets | 13.2 (above normal) | 3.1 – 8.5 | 2.42 lb | 119 |
| 2010-07-26 | Standard trap nets | 0.7 | — | 1.27 lb | 8 |
| 1971-09-07 | Standard gill nets | 4.5 (normal) | 3.1 – 8.5 | 2.12 lb | 18 |
| 1971-09-07 | Standard trap nets | 0.8 | — | 1.75 lb | 6 |
| 2015-07-20 | Standard gill nets | 11.6 (above normal) | 3.1 – 8.5 | 2.57 lb | 104 |
| 2015-07-20 | Standard trap nets | 0.4 | — | 3.71 lb | 5 |
Rock Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard trap nets | 1.5 (normal) | 0.6 – 2.5 | 0.48 lb | 18 |
| 2000-07-31 | Survey seining | 0.3 | — | — | 1 |
| 2000-07-31 | Standard gill nets | 0.1 (below normal) | 0.3 – 2.0 | 0.57 lb | 1 |
| 2000-07-31 | Standard trap nets | 1.6 (normal) | 0.6 – 2.5 | 0.27 lb | 17 |
| 1981-07-16 | Standard trap nets | 4.3 (above normal) | 0.6 – 2.5 | 0.39 lb | 34 |
| 2022-07-27 | 50-ft beach seine | 0.8 | — | — | 10 |
| 2022-07-27 | Backpack electrofishing | 15.6 | — | — | 13 |
| 2005-07-18 | Standard gill nets | 0.3 (normal) | 0.3 – 2.0 | 0.30 lb | 4 |
| 2005-07-18 | Standard trap nets | 0.5 (below normal) | 0.6 – 2.5 | 0.17 lb | 6 |
| 2020-07-27 | Standard trap nets | 0.4 (below normal) | 0.6 – 2.5 | 0.34 lb | 5 |
| 2020-07-27 | Standard gill nets | 0.4 (normal) | 0.3 – 2.0 | 0.46 lb | 4 |
| 2010-07-26 | 15-ft beach seine | 0.5 | — | — | 2 |
| 2010-07-26 | Standard gill nets | 0.3 (normal) | 0.3 – 2.0 | 0.53 lb | 3 |
| 2010-07-26 | Backpack electrofishing | 3.1 | — | — | 2 |
| 2010-07-26 | Standard trap nets | 1.0 (normal) | 0.6 – 2.5 | 0.33 lb | 11 |
| 1971-09-07 | Standard gill nets | 1.3 (normal) | 0.3 – 2.0 | 0.64 lb | 5 |
| 1971-09-07 | Standard trap nets | 0.3 (below normal) | 0.6 – 2.5 | 0.30 lb | 2 |
| 2015-07-20 | Standard trap nets | 0.9 (normal) | 0.6 – 2.5 | 0.59 lb | 11 |
| 2015-07-20 | Standard gill nets | 0.2 (below normal) | 0.3 – 2.0 | 0.63 lb | 2 |
Walleye
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard gill nets | 2.3 (normal) | 1.3 – 5.5 | 2.58 lb | 18 |
| 1995-07-24 | Standard trap nets | 0.5 (normal) | 0.2 – 0.7 | 5.20 lb | 6 |
| 2000-07-31 | Standard gill nets | 4.3 (normal) | 1.3 – 5.5 | 2.34 lb | 34 |
| 2000-07-31 | Standard trap nets | 0.3 (normal) | 0.2 – 0.7 | 2.10 lb | 3 |
| 1981-07-16 | Standard gill nets | 3.5 (normal) | 1.3 – 5.5 | 1.59 lb | 14 |
| 1981-07-16 | Standard trap nets | 0.4 (normal) | 0.2 – 0.7 | 1.41 lb | 3 |
| 2005-07-18 | Standard gill nets | 6.0 (above normal) | 1.3 – 5.5 | 1.71 lb | 72 |
| 2020-07-27 | Standard gill nets | 3.6 (normal) | 1.3 – 5.5 | 2.69 lb | 32 |
| 2020-07-27 | Standard trap nets | 0.3 (normal) | 0.2 – 0.7 | 2.72 lb | 4 |
| 2010-07-26 | Standard gill nets | 5.9 (above normal) | 1.3 – 5.5 | 2.05 lb | 53 |
| 2010-07-26 | Standard trap nets | 0.5 (normal) | 0.2 – 0.7 | 1.04 lb | 5 |
| 1971-09-07 | Standard gill nets | 11.5 (above normal) | 1.3 – 5.5 | 1.24 lb | 46 |
| 1971-09-07 | Standard trap nets | 1.1 (above normal) | 0.2 – 0.7 | 2.32 lb | 9 |
| 2015-07-20 | Standard gill nets | 7.7 (above normal) | 1.3 – 5.5 | 1.65 lb | 69 |
| 2015-07-20 | Standard trap nets | 0.2 (below normal) | 0.2 – 0.7 | 0.40 lb | 2 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard gill nets | 2.0 | — | 0.25 lb | 16 |
| 1995-07-24 | Standard trap nets | 18.5 (normal) | 5.6 – 42.3 | 0.15 lb | 222 |
| 2000-07-31 | Survey seining | 30.3 | — | — | 121 |
| 2000-07-31 | Standard gill nets | 6.6 | — | 0.13 lb | 53 |
| 2000-07-31 | Standard trap nets | 47.4 (above normal) | 5.6 – 42.3 | 0.05 lb | 521 |
| 1981-07-16 | Standard trap nets | 9.5 (normal) | 5.6 – 42.3 | 0.05 lb | 76 |
| 2022-07-27 | Backpack electrofishing | 10.8 | — | — | 9 |
| 2022-07-27 | 50-ft beach seine | 14.8 | — | — | 192 |
| 2005-07-18 | Standard gill nets | 8.7 | — | 0.11 lb | 104 |
| 2005-07-18 | Standard trap nets | 22.9 (normal) | 5.6 – 42.3 | 0.08 lb | 275 |
| 2020-07-27 | Standard trap nets | 33.9 (normal) | 5.6 – 42.3 | 0.15 lb | 407 |
| 2020-07-27 | Standard gill nets | 13.3 | — | 0.19 lb | 120 |
| 2010-07-26 | Standard gill nets | 23.9 | — | 0.24 lb | 215 |
| 2010-07-26 | Backpack electrofishing | 84.4 | — | — | 54 |
| 2010-07-26 | Standard trap nets | 44.2 (above normal) | 5.6 – 42.3 | 0.10 lb | 486 |
| 2010-07-26 | 15-ft beach seine | 77.0 | — | — | 308 |
| 1971-09-07 | Standard trap nets | 4.3 (below normal) | 5.6 – 42.3 | 0.16 lb | 34 |
| 2015-07-20 | Standard trap nets | 20.5 (normal) | 5.6 – 42.3 | 0.17 lb | 246 |
| 2015-07-20 | Standard gill nets | 7.9 | — | 0.40 lb | 71 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard gill nets | 2.3 | — | 0.29 lb | 18 |
| 1995-07-24 | Standard trap nets | 5.4 (normal) | 1.7 – 8.2 | 0.23 lb | 65 |
| 2000-07-31 | Survey seining | 5.3 | — | — | 21 |
| 2000-07-31 | Standard gill nets | 13.9 | — | 0.13 lb | 111 |
| 2000-07-31 | Standard trap nets | 7.5 (normal) | 1.7 – 8.2 | 0.11 lb | 82 |
| 1981-07-16 | Standard gill nets | 1.3 | — | 0.06 lb | 5 |
| 1981-07-16 | Standard trap nets | 28.0 (above normal) | 1.7 – 8.2 | 0.05 lb | 224 |
| 2022-07-27 | Backpack electrofishing | 9.6 | — | — | 8 |
| 2022-07-27 | 50-ft beach seine | 10.5 | — | — | 136 |
| 2005-07-18 | Standard gill nets | 6.5 | — | 0.07 lb | 78 |
| 2005-07-18 | Standard trap nets | 1.3 (below normal) | 1.7 – 8.2 | 0.07 lb | 15 |
| 2020-07-27 | Standard gill nets | 19.2 | — | 0.11 lb | 173 |
| 2020-07-27 | Standard trap nets | 2.9 (normal) | 1.7 – 8.2 | 0.10 lb | 35 |
| 2010-07-26 | Standard gill nets | 9.8 | — | 0.13 lb | 88 |
| 2010-07-26 | Backpack electrofishing | 1.6 | — | — | 1 |
| 2010-07-26 | Standard trap nets | 2.6 (normal) | 1.7 – 8.2 | 0.07 lb | 29 |
| 2010-07-26 | 15-ft beach seine | 3.3 | — | — | 13 |
| 1971-09-07 | Standard gill nets | 1.0 | — | 0.17 lb | 4 |
| 1971-09-07 | Standard trap nets | 22.6 (above normal) | 1.7 – 8.2 | 0.10 lb | 181 |
| 2015-07-20 | Standard gill nets | 5.2 | — | 0.11 lb | 47 |
| 2015-07-20 | Standard trap nets | 3.0 (normal) | 1.7 – 8.2 | 0.09 lb | 36 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard gill nets | 0.4 (below normal) | 0.5 – 3.5 | 5.12 lb | 3 |
| 2000-07-31 | Standard gill nets | 0.3 (below normal) | 0.5 – 3.5 | 1.34 lb | 2 |
| 1981-07-16 | Standard gill nets | 0.5 (normal) | 0.5 – 3.5 | 2.00 lb | 2 |
| 1953-08-17 | Standard gill nets | 0.2 (below normal) | 0.5 – 3.5 | 2.10 lb | 1 |
| 2005-07-18 | Standard gill nets | 0.3 (below normal) | 0.5 – 3.5 | 2.89 lb | 4 |
| 2010-07-26 | Standard trap nets | 0.1 (below normal) | 0.2 – 1.0 | 3.53 lb | 1 |
| 1971-09-07 | Standard gill nets | 0.3 (below normal) | 0.5 – 3.5 | 2.90 lb | 1 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard gill nets | 0.1 (below normal) | 0.5 – 2.7 | 0.06 lb | 1 |
| 1995-07-24 | Standard trap nets | 0.5 (below normal) | 0.7 – 3.2 | 0.57 lb | 6 |
| 2000-07-31 | Standard gill nets | 3.9 (above normal) | 0.5 – 2.7 | 0.17 lb | 31 |
| 2000-07-31 | Standard trap nets | 7.1 (above normal) | 0.7 – 3.2 | 0.17 lb | 78 |
| 2005-07-18 | Standard gill nets | 3.0 (above normal) | 0.5 – 2.7 | 0.10 lb | 36 |
| 2005-07-18 | Standard trap nets | 0.8 (normal) | 0.7 – 3.2 | 0.12 lb | 10 |
| 2020-07-27 | Standard gill nets | 41.2 (above normal) | 0.5 – 2.7 | 0.32 lb | 371 |
| 2020-07-27 | Standard trap nets | 9.5 (above normal) | 0.7 – 3.2 | 0.32 lb | 114 |
| 2010-07-26 | Standard gill nets | 1.0 (normal) | 0.5 – 2.7 | 0.48 lb | 9 |
| 2010-07-26 | Standard trap nets | 2.4 (normal) | 0.7 – 3.2 | 0.48 lb | 26 |
| 2010-07-26 | 15-ft beach seine | 0.8 | — | — | 3 |
| 1971-09-07 | Standard trap nets | 0.1 (below normal) | 0.7 – 3.2 | 0.40 lb | 1 |
| 2015-07-20 | Standard gill nets | 10.1 (above normal) | 0.5 – 2.7 | 0.15 lb | 91 |
| 2015-07-20 | Standard trap nets | 23.4 (above normal) | 0.7 – 3.2 | 0.13 lb | 281 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1995-07-24 | Standard trap nets | 0.4 (normal) | 0.3 – 1.1 | 1.18 lb | 5 |
| 2000-07-31 | Survey seining | 0.3 | — | — | 1 |
| 2000-07-31 | Standard gill nets | 0.1 (below normal) | 0.3 – 1.2 | 0.08 lb | 1 |
| 2000-07-31 | Standard trap nets | 0.2 (below normal) | 0.3 – 1.1 | 0.96 lb | 2 |
| 2022-07-27 | Backpack electrofishing | 14.4 | — | — | 12 |
| 2022-07-27 | 50-ft beach seine | 5.7 | — | — | 74 |
| 2005-07-18 | Standard gill nets | 0.6 (normal) | 0.3 – 1.2 | 1.75 lb | 7 |
| 2005-07-18 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.1 | 1.85 lb | 3 |
| 2020-07-27 | Standard trap nets | 0.2 (below normal) | 0.3 – 1.1 | 0.10 lb | 2 |
| 2020-07-27 | Standard gill nets | 0.2 (below normal) | 0.3 – 1.2 | 1.26 lb | 2 |
| 2010-07-26 | 15-ft beach seine | 6.3 | — | — | 25 |
| 2010-07-26 | Standard gill nets | 0.3 (normal) | 0.3 – 1.2 | 2.05 lb | 3 |
| 2010-07-26 | Backpack electrofishing | 1.6 | — | — | 1 |
| 2010-07-26 | Standard trap nets | 0.2 (below normal) | 0.3 – 1.1 | 2.92 lb | 2 |
| 1971-09-07 | Standard trap nets | 2.1 (above normal) | 0.3 – 1.1 | 0.07 lb | 17 |
| 2015-07-20 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.1 | 2.22 lb | 3 |
Golden Shiner
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2000-07-31 | Standard trap nets | 0.2 (normal) | 0.1 – 0.7 | 0.04 lb | 2 |
CNM
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2022-07-27 | Backpack electrofishing | 18.0 | — | 15 |
| 2022-07-27 | 50-ft beach seine | 0.5 | — | 6 |
| 2010-07-26 | Backpack electrofishing | 1.6 | — | 1 |
Johnny Darter
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2022-07-27 | Backpack electrofishing | 6.0 | — | 5 |
| 2022-07-27 | 50-ft beach seine | 0.1 | — | 2 |
| 2010-07-26 | 15-ft beach seine | 1.5 | — | 6 |
| 2010-07-26 | Backpack electrofishing | 15.6 | — | 10 |
Tadpole Madtom
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2022-07-27 | Backpack electrofishing | 2.4 | — | 2 |
| 2022-07-27 | 50-ft beach seine | 0.5 | — | 7 |
| 2010-07-26 | Backpack electrofishing | 7.8 | — | 5 |
Iowa Darter
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2022-07-27 | 50-ft beach seine | 0.5 | — | 6 |
| 2010-07-26 | 15-ft beach seine | 1.5 | — | 6 |
| 2010-07-26 | Backpack electrofishing | 28.1 | — | 18 |
BST
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2022-07-27 | 50-ft beach seine | 0.1 | — | 1 |
BNS
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2010-07-26 | 15-ft beach seine | 22.3 | — | 89 |
Hybrid Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2010-07-26 | Standard trap nets | 0.2 | — | 0.30 lb | 2 |
| 2015-07-20 | Standard trap nets | 0.2 | — | 0.36 lb | 2 |
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Fish Species
Species known to inhabit Island. 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.
Learn how we maintain this data.