North Union
Douglas County, Minnesota — DOW #21009500
123 Surveys
Invasive Species Alert
North Union has confirmed populations of:
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DNR Fish Surveys
Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on North Union.
Green = above normal range. Red = below normal.
Tullibee (Cisco)
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard gill nets | 0.5 (below normal) | 0.9 – 4.4 | 0.41 lb | 1 |
| 1992-07-29 | Standard gill nets | 1.0 (normal) | 0.9 – 4.4 | 2.25 lb | 2 |
| 1997-07-28 | Standard gill nets | 3.0 (normal) | 0.9 – 4.4 | 1.99 lb | 6 |
| 1987-07-27 | Standard gill nets | 4.5 (above normal) | 0.9 – 4.4 | 1.82 lb | 9 |
Black Crappie
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard gill nets | 0.5 (below normal) | 0.8 – 8.4 | 0.38 lb | 1 |
| 2018-08-08 | Standard trap nets | 1.3 (normal) | 0.9 – 8.0 | 0.38 lb | 5 |
| 2018-08-08 | Backpack electrofishing | 2.5 | — | — | 1 |
| 2008-08-04 | Standard gill nets | 1.5 (normal) | 0.8 – 8.4 | 0.25 lb | 3 |
| 2008-08-04 | Standard trap nets | 1.0 (normal) | 0.9 – 8.0 | 0.28 lb | 4 |
| 1997-07-28 | Standard gill nets | 0.5 (below normal) | 0.8 – 8.4 | 0.06 lb | 1 |
| 1997-07-28 | Standard trap nets | 1.6 (normal) | 0.9 – 8.0 | 0.24 lb | 13 |
| 2002-08-05 | Standard gill nets | 0.5 (below normal) | 0.8 – 8.4 | 0.36 lb | 1 |
| 2002-08-05 | Standard trap nets | 0.5 (below normal) | 0.9 – 8.0 | 0.45 lb | 4 |
| 1987-07-27 | Standard trap nets | 0.5 (below normal) | 0.9 – 8.0 | 0.20 lb | 2 |
Northern Pike
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard gill nets | 9.5 (above normal) | 2.3 – 9.2 | 1.70 lb | 19 |
| 2018-08-08 | Standard trap nets | 0.5 | — | 0.94 lb | 2 |
| 1992-07-29 | Standard gill nets | 7.0 (normal) | 2.3 – 9.2 | 1.98 lb | 14 |
| 2008-08-04 | Standard gill nets | 6.5 (normal) | 2.3 – 9.2 | 1.49 lb | 13 |
| 2008-08-04 | Standard trap nets | 1.0 | — | 0.69 lb | 4 |
| 1997-07-28 | Standard gill nets | 6.5 (normal) | 2.3 – 9.2 | 1.71 lb | 13 |
| 1997-07-28 | Standard trap nets | 0.8 | — | 0.77 lb | 6 |
| 2002-08-05 | Standard gill nets | 6.5 (normal) | 2.3 – 9.2 | 1.68 lb | 13 |
| 2002-08-05 | Standard trap nets | 0.1 | — | 0.72 lb | 1 |
| 1987-07-27 | Standard gill nets | 5.0 (normal) | 2.3 – 9.2 | 1.07 lb | 10 |
| 1987-07-27 | Standard trap nets | 0.8 | — | 0.93 lb | 3 |
Hybrid Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard trap nets | 0.3 | — | 0.22 lb | 1 |
| 2018-08-08 | 15-ft beach seine | 1.0 | — | — | 1 |
| 2018-08-08 | Backpack electrofishing | 5.0 | — | — | 2 |
| 2008-08-04 | Standard trap nets | 1.8 | — | 0.30 lb | 7 |
| 1997-07-28 | Standard trap nets | 2.4 | — | 0.49 lb | 19 |
| 2002-08-05 | Standard trap nets | 1.0 | — | 0.19 lb | 8 |
Bluegill
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard trap nets | 17.3 (normal) | 5.9 – 43.3 | 0.26 lb | 69 |
| 2018-08-08 | Standard gill nets | 2.0 | — | 0.14 lb | 4 |
| 1992-07-29 | Standard gill nets | 5.0 | — | 0.22 lb | 10 |
| 2018-08-08 | Backpack electrofishing | 27.7 | — | — | 11 |
| 2018-08-08 | 15-ft beach seine | 5.0 | — | — | 5 |
| 2018-08-08 | 50-ft beach seine | 1.0 | — | — | 1 |
| 2008-08-04 | Standard trap nets | 22.5 (normal) | 5.9 – 43.3 | 0.22 lb | 90 |
| 2008-08-04 | Standard gill nets | 16.5 | — | 0.31 lb | 33 |
| 1997-07-28 | Standard gill nets | 0.5 | — | 0.15 lb | 1 |
| 1997-07-28 | Standard trap nets | 50.3 (above normal) | 5.9 – 43.3 | 0.20 lb | 402 |
| 2002-08-05 | Standard gill nets | 17.0 | — | 0.25 lb | 34 |
| 2002-08-05 | Standard trap nets | 14.3 (normal) | 5.9 – 43.3 | 0.13 lb | 114 |
| 1987-07-27 | Standard trap nets | 99.3 (above normal) | 5.9 – 43.3 | 0.17 lb | 397 |
Largemouth Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard trap nets | 0.5 (normal) | 0.3 – 1.0 | 1.56 lb | 2 |
| 2018-08-08 | Standard gill nets | 1.0 (normal) | 0.3 – 1.5 | 0.80 lb | 2 |
| 1992-07-29 | Standard gill nets | 0.5 (normal) | 0.3 – 1.5 | 0.20 lb | 1 |
| 2018-08-08 | Backpack electrofishing | 2.5 | — | — | 1 |
| 2018-08-08 | 15-ft beach seine | 9.0 | — | — | 9 |
| 2008-08-04 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.0 | 0.37 lb | 1 |
| 1997-07-28 | Standard trap nets | 1.4 (above normal) | 0.3 – 1.0 | 0.44 lb | 11 |
| 2002-08-05 | Standard gill nets | 1.0 (normal) | 0.3 – 1.5 | 1.02 lb | 2 |
| 2002-08-05 | Standard trap nets | 0.8 (normal) | 0.3 – 1.0 | 0.72 lb | 6 |
| 1987-07-27 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.0 | 0.50 lb | 1 |
Walleye
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard gill nets | 1.0 (below normal) | 1.2 – 5.3 | 2.06 lb | 2 |
| 1992-07-29 | Standard gill nets | 4.0 (normal) | 1.2 – 5.3 | 2.56 lb | 8 |
| 2008-08-04 | Standard gill nets | 0.5 (below normal) | 1.2 – 5.3 | 4.08 lb | 1 |
| 1997-07-28 | Standard gill nets | 2.5 (normal) | 1.2 – 5.3 | 3.76 lb | 5 |
| 1997-07-28 | Standard trap nets | 0.3 (below normal) | 0.3 – 0.8 | 2.45 lb | 2 |
| 2002-08-05 | Standard gill nets | 1.5 (normal) | 1.2 – 5.3 | 2.90 lb | 3 |
Brown Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard trap nets | 0.5 (below normal) | 0.6 – 5.2 | 0.99 lb | 2 |
| 1992-07-29 | Standard gill nets | 0.5 (normal) | 0.5 – 5.5 | 0.80 lb | 1 |
| 2008-08-04 | Standard gill nets | 0.5 (normal) | 0.5 – 5.5 | 1.20 lb | 1 |
| 1997-07-28 | Standard trap nets | 1.6 (normal) | 0.6 – 5.2 | 0.86 lb | 13 |
| 1997-07-28 | Standard gill nets | 5.0 (normal) | 0.5 – 5.5 | 0.80 lb | 10 |
| 2002-08-05 | Standard trap nets | 0.5 (below normal) | 0.6 – 5.2 | 0.75 lb | 4 |
| 2002-08-05 | Standard gill nets | 1.5 (normal) | 0.5 – 5.5 | 1.18 lb | 3 |
Yellow Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard gill nets | 2.0 (normal) | 1.0 – 8.0 | 0.71 lb | 4 |
| 2018-08-08 | Standard trap nets | 2.8 (normal) | 2.4 – 9.1 | 0.72 lb | 11 |
| 1992-07-29 | Standard gill nets | 21.5 (above normal) | 1.0 – 8.0 | 0.70 lb | 43 |
| 2008-08-04 | Standard gill nets | 1.0 (normal) | 1.0 – 8.0 | 0.65 lb | 2 |
| 2008-08-04 | Standard trap nets | 1.3 (below normal) | 2.4 – 9.1 | 0.85 lb | 5 |
| 1997-07-28 | Standard gill nets | 1.0 (normal) | 1.0 – 8.0 | 0.90 lb | 2 |
| 1997-07-28 | Standard trap nets | 6.4 (normal) | 2.4 – 9.1 | 0.64 lb | 51 |
| 2002-08-05 | Standard gill nets | 12.5 (above normal) | 1.0 – 8.0 | 0.64 lb | 25 |
| 2002-08-05 | Standard trap nets | 18.9 (above normal) | 2.4 – 9.1 | 0.50 lb | 151 |
| 1987-07-27 | Standard gill nets | 2.0 (normal) | 1.0 – 8.0 | 0.50 lb | 4 |
| 1987-07-27 | Standard trap nets | 16.3 (above normal) | 2.4 – 9.1 | 0.52 lb | 65 |
Pumpkinseed
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard trap nets | 3.0 (normal) | 1.5 – 9.1 | 0.29 lb | 12 |
| 1992-07-29 | Standard gill nets | 0.5 | — | 0.40 lb | 1 |
| 2018-08-08 | Backpack electrofishing | 7.6 | — | — | 3 |
| 2018-08-08 | 50-ft beach seine | 4.0 | — | — | 4 |
| 2008-08-04 | Standard gill nets | 1.0 | — | 0.25 lb | 2 |
| 2008-08-04 | Standard trap nets | 1.8 (normal) | 1.5 – 9.1 | 0.23 lb | 7 |
| 1997-07-28 | Standard gill nets | 1.0 | — | 0.41 lb | 2 |
| 1997-07-28 | Standard trap nets | 17.0 (above normal) | 1.5 – 9.1 | 0.32 lb | 136 |
| 2002-08-05 | Standard gill nets | 0.5 | — | 0.25 lb | 1 |
| 2002-08-05 | Standard trap nets | 8.5 (normal) | 1.5 – 9.1 | 0.22 lb | 68 |
| 1987-07-27 | Standard trap nets | 21.0 (above normal) | 1.5 – 9.1 | 0.20 lb | 84 |
Common Carp
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.5 | 12.32 lb | 1 |
| 1992-07-29 | Standard gill nets | 0.5 (normal) | 0.3 – 2.5 | 6.60 lb | 1 |
| 1997-07-28 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.5 | 11.90 lb | 1 |
| 2002-08-05 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.5 | 11.81 lb | 1 |
Rock Bass
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | Standard gill nets | 0.5 (normal) | 0.3 – 1.1 | 0.51 lb | 1 |
| 2002-08-05 | Standard gill nets | 0.5 (normal) | 0.3 – 1.1 | 0.32 lb | 1 |
| 2002-08-05 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.0 | 0.79 lb | 1 |
Black Bullhead
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1992-07-29 | Standard gill nets | 9.0 (normal) | 3.1 – 47.6 | 1.07 lb | 18 |
| 1997-07-28 | Standard gill nets | 28.5 (normal) | 3.1 – 47.6 | 0.90 lb | 57 |
| 2002-08-05 | Standard trap nets | 0.1 (below normal) | 1.0 – 29.9 | 1.06 lb | 1 |
| 2002-08-05 | Standard gill nets | 1.0 (below normal) | 3.1 – 47.6 | 1.04 lb | 2 |
| 1987-07-27 | Standard gill nets | 2.0 (below normal) | 3.1 – 47.6 | 0.93 lb | 4 |
Bowfin
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1992-07-29 | Standard gill nets | 1.0 (normal) | 0.3 – 1.5 | 2.80 lb | 2 |
| 1997-07-28 | Standard trap nets | 1.1 (above normal) | 0.3 – 1.1 | 3.33 lb | 9 |
| 2002-08-05 | Standard trap nets | 0.3 (below normal) | 0.3 – 1.1 | 4.70 lb | 2 |
Brook Trout
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | 50-ft beach seine | 18.0 | — | 18 |
| 2018-08-08 | Backpack electrofishing | 2.5 | — | 1 |
CNM
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | Backpack electrofishing | 2.5 | — | 1 |
Bluntnose Minnow
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | 50-ft beach seine | 2.0 | — | 2 |
BKF
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | 50-ft beach seine | 2.0 | — | 2 |
Yellow Perch
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2018-08-08 | 15-ft beach seine | 2.0 | — | — | 2 |
| 2018-08-08 | 50-ft beach seine | 9.0 | — | — | 9 |
| 2008-08-04 | Standard trap nets | 0.8 (normal) | 0.5 – 3.7 | 0.12 lb | 3 |
| 1997-07-28 | Standard trap nets | 0.1 (below normal) | 0.5 – 3.7 | 0.19 lb | 1 |
| 2002-08-05 | Standard trap nets | 0.8 (normal) | 0.5 – 3.7 | 0.12 lb | 6 |
| 1987-07-27 | Standard trap nets | 0.5 (normal) | 0.5 – 3.7 | 0.35 lb | 2 |
BNS
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | Backpack electrofishing | 2.5 | — | 1 |
Golden Shiner
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | Backpack electrofishing | 15.1 | — | 6 |
Iowa Darter
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | 50-ft beach seine | 1.0 | — | 1 |
Johnny Darter
| Date | Gear | CPUE | Normal Range | Total Catch |
| 2018-08-08 | 50-ft beach seine | 5.0 | — | 5 |
White Sucker
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 1997-07-28 | Standard gill nets | 1.5 (normal) | 0.5 – 3.3 | 2.57 lb | 3 |
| 2002-08-05 | Standard trap nets | 0.1 (below normal) | 0.3 – 1.3 | 2.74 lb | 1 |
Green Sunfish
| Date | Gear | CPUE | Normal Range | Avg Weight | Total Catch |
| 2002-08-05 | Standard trap nets | 0.1 (below normal) | 0.2 – 1.2 | 0.37 lb | 1 |
| 1987-07-27 | Standard trap nets | 0.3 (normal) | 0.2 – 1.2 | 0.40 lb | 1 |
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Fish Species
Species known to inhabit North Union. Click any species for a full fishing guide.
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Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026.
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