Mary

Crow Wing County, Minnesota — DOW #18018500

167 Surveys

Invasive Species Alert

Mary has confirmed populations of:

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412.64
Acres
34 ft
Max Depth
0
13
Fish Species
15
Local Guides

DNR Fish Surveys

Catch-per-unit-effort (CPUE) data from Minnesota DNR fish population assessments on Mary. Green = above normal range. Red = below normal.

Bluegill

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Backpack electrofishing 90.6 48
2012-07-16 15-ft beach seine 20.2 101
2012-07-16 Standard trap nets 1.9 (below normal) 6.1 – 46.6 0.25 lb 17
1988-07-18 Standard trap nets 9.9 (normal) 6.1 – 46.6 0.17 lb 79
2022-08-18 Backpack electrofishing 4.8 6
2022-08-18 15-ft beach seine 2.0 4
2022-08-18 50-ft beach seine 18.7 112
1983-07-20 Standard trap nets 5.6 (below normal) 6.1 – 46.6 0.35 lb 45
1998-07-20 Survey seining 87.8 351
1998-07-20 Standard trap nets 2.5 (below normal) 6.1 – 46.6 0.23 lb 20
2024-07-01 Backpack electrofishing 17.5 19
2024-07-01 15-ft beach seine 44.7 134
2024-07-01 50-ft beach seine 22.9 160
2024-07-01 Standard trap nets 3.9 (below normal) 6.1 – 46.6 0.21 lb 31
2023-07-17 Standard gill nets 0.8 0.18 lb 5
2023-07-17 Standard trap nets 5.6 (below normal) 6.1 – 46.6 0.16 lb 50

Yellow Perch

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard trap nets 0.3 (below normal) 0.5 – 3.3 0.06 lb 3
2012-07-16 Backpack electrofishing 24.5 13
2012-07-16 15-ft beach seine 2.0 10
2012-07-16 Standard gill nets 5.5 (normal) 3.4 – 43.6 0.10 lb 33
1988-07-18 Standard trap nets 1.4 (normal) 0.5 – 3.3 0.11 lb 11
1988-07-18 Standard gill nets 18.6 (normal) 3.4 – 43.6 0.13 lb 93
2022-08-18 Backpack electrofishing 0.8 1
2022-08-18 50-ft beach seine 8.7 52
1983-07-20 Standard trap nets 0.5 (normal) 0.5 – 3.3 0.25 lb 4
1983-07-20 Standard gill nets 6.0 (normal) 3.4 – 43.6 0.13 lb 30
1998-07-20 Standard trap nets 0.5 (normal) 0.5 – 3.3 0.25 lb 4
1998-07-20 Survey seining 23.8 95
1998-07-20 Standard gill nets 10.0 (normal) 3.4 – 43.6 0.09 lb 50
2024-07-01 Standard trap nets 0.6 (normal) 0.5 – 3.3 0.14 lb 5
2024-07-01 Backpack electrofishing 0.9 1
2024-07-01 15-ft beach seine 0.7 2
2024-07-01 50-ft beach seine 1.9 13
2023-07-17 Standard trap nets 0.2 (below normal) 0.5 – 3.3 0.18 lb 2
2023-07-17 Standard gill nets 3.5 (normal) 3.4 – 43.6 0.11 lb 21

Northern Pike

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard gill nets 0.8 (below normal) 3.5 – 10.5 2.13 lb 5
2012-07-16 Standard trap nets 0.2 10.75 lb 2
2012-07-16 15-ft beach seine 0.2 1
1988-07-18 Standard gill nets 2.4 (below normal) 3.5 – 10.5 2.08 lb 12
1988-07-18 Standard trap nets 0.4 1.00 lb 3
2022-08-18 50-ft beach seine 1.5 9
2022-08-18 15-ft beach seine 0.5 1
1983-07-20 Standard gill nets 1.8 (below normal) 3.5 – 10.5 1.97 lb 9
1983-07-20 Standard trap nets 0.6 1.25 lb 5
1998-07-20 Standard gill nets 1.8 (below normal) 3.5 – 10.5 2.57 lb 9
1998-07-20 Standard trap nets 0.9 0.88 lb 7
1998-07-20 Survey seining 0.3 1
2024-07-01 Standard trap nets 0.4 2.00 lb 3
2023-07-17 Standard gill nets 3.0 (below normal) 3.5 – 10.5 3.31 lb 18
2023-07-17 Standard trap nets 0.4 3.56 lb 4

Johnny Darter

Date Gear CPUE Normal Range Total Catch
2012-07-16 Backpack electrofishing 3.8 2
2022-08-18 Backpack electrofishing 3.2 4
1998-07-20 Survey seining 0.5 2
2024-07-01 50-ft beach seine 0.3 2

Yellow Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard trap nets 0.1 (below normal) 1.3 – 9.8 0.33 lb 1
2012-07-16 Backpack electrofishing 1.9 1
1988-07-18 Standard gill nets 2.2 (normal) 1.0 – 10.5 0.70 lb 11
1988-07-18 Standard trap nets 2.9 (normal) 1.3 – 9.8 0.87 lb 23
2022-08-18 50-ft beach seine 0.2 1
2022-08-18 Backpack electrofishing 0.8 1
1983-07-20 Standard trap nets 1.0 (below normal) 1.3 – 9.8 1.09 lb 8
1998-07-20 Standard gill nets 0.4 (below normal) 1.0 – 10.5 0.92 lb 2
2024-07-01 Standard trap nets 0.9 (below normal) 1.3 – 9.8 0.73 lb 7
2023-07-17 Standard gill nets 0.5 (below normal) 1.0 – 10.5 0.85 lb 3
2023-07-17 Standard trap nets 0.1 (below normal) 1.3 – 9.8 0.34 lb 1

Walleye

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard gill nets 0.3 (below normal) 1.3 – 5.0 0.62 lb 2
2012-07-16 Standard trap nets 0.6 (normal) 0.3 – 0.7 2.35 lb 5
1988-07-18 Standard gill nets 1.2 (below normal) 1.3 – 5.0 1.78 lb 6
1988-07-18 Standard trap nets 0.1 (below normal) 0.3 – 0.7 1.00 lb 1
1983-07-20 Standard gill nets 0.6 (below normal) 1.3 – 5.0 0.45 lb 3
1998-07-20 Standard gill nets 1.8 (normal) 1.3 – 5.0 1.43 lb 9
1998-07-20 Standard trap nets 0.3 (below normal) 0.3 – 0.7 1.31 lb 2
2024-07-01 Standard trap nets 0.5 (normal) 0.3 – 0.7 1.08 lb 4
2023-07-17 Standard gill nets 1.5 (normal) 1.3 – 5.0 3.64 lb 9
2023-07-17 Standard trap nets 0.1 (below normal) 0.3 – 0.7 1.58 lb 1

Rock Bass

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Backpack electrofishing 7.5 4
2012-07-16 15-ft beach seine 0.4 2
1988-07-18 Standard gill nets 1.2 (normal) 0.3 – 1.9 0.46 lb 6
1988-07-18 Standard trap nets 1.1 (normal) 0.5 – 1.8 0.42 lb 9
2022-08-18 50-ft beach seine 0.5 3
2022-08-18 Backpack electrofishing 3.2 4
2022-08-18 15-ft beach seine 0.5 1
1983-07-20 Standard trap nets 0.8 (normal) 0.5 – 1.8 0.92 lb 6
1983-07-20 Standard gill nets 0.6 (normal) 0.3 – 1.9 1.00 lb 3
1998-07-20 Survey seining 5.0 20
1998-07-20 Standard gill nets 1.0 (normal) 0.3 – 1.9 0.82 lb 5
1998-07-20 Standard trap nets 0.3 (below normal) 0.5 – 1.8 0.45 lb 2
2024-07-01 50-ft beach seine 0.1 1
2024-07-01 Standard trap nets 0.1 (below normal) 0.5 – 1.8 0.86 lb 1
2024-07-01 Backpack electrofishing 0.9 1
2024-07-01 15-ft beach seine 0.3 1

White Sucker

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard gill nets 0.5 (normal) 0.5 – 2.7 2.72 lb 3
2012-07-16 Standard trap nets 1.2 (normal) 0.3 – 1.4 2.84 lb 11
1988-07-18 Standard gill nets 1.4 (normal) 0.5 – 2.7 1.25 lb 7
1988-07-18 Standard trap nets 0.1 (below normal) 0.3 – 1.4 0.50 lb 1
1983-07-20 Standard gill nets 1.4 (normal) 0.5 – 2.7 1.93 lb 7
1983-07-20 Standard trap nets 0.8 (normal) 0.3 – 1.4 1.00 lb 6
1998-07-20 Standard gill nets 2.2 (normal) 0.5 – 2.7 2.03 lb 11
1998-07-20 Standard trap nets 0.4 (normal) 0.3 – 1.4 3.28 lb 3
2024-07-01 Standard trap nets 0.3 (below normal) 0.3 – 1.4 1.95 lb 2
2023-07-17 Standard gill nets 0.7 (normal) 0.5 – 2.7 1.61 lb 4
2023-07-17 Standard trap nets 0.1 (below normal) 0.3 – 1.4 4.32 lb 1

Fathead Minnow

Date Gear CPUE Normal Range Total Catch
2012-07-16 Backpack electrofishing 1.9 1

Black Crappie

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard gill nets 11.3 (above normal) 0.6 – 3.5 0.15 lb 68
2012-07-16 Standard trap nets 15.9 (above normal) 0.7 – 3.4 0.18 lb 143
1988-07-18 Standard gill nets 0.2 (below normal) 0.6 – 3.5 0.20 lb 1
1988-07-18 Standard trap nets 3.0 (normal) 0.7 – 3.4 0.22 lb 24
2022-08-18 50-ft beach seine 3.0 18
1983-07-20 Standard gill nets 3.0 (normal) 0.6 – 3.5 0.21 lb 15
1983-07-20 Standard trap nets 3.4 (normal) 0.7 – 3.4 0.29 lb 27
1998-07-20 Survey seining 7.5 30
1998-07-20 Standard gill nets 1.8 (normal) 0.6 – 3.5 0.23 lb 9
1998-07-20 Standard trap nets 3.4 (normal) 0.7 – 3.4 0.30 lb 27
2024-07-01 15-ft beach seine 0.7 2
2024-07-01 50-ft beach seine 0.7 5
2024-07-01 Standard trap nets 3.6 (above normal) 0.7 – 3.4 0.23 lb 29
2023-07-17 Standard gill nets 23.3 (above normal) 0.6 – 3.5 0.16 lb 140
2023-07-17 Standard trap nets 2.7 (normal) 0.7 – 3.4 0.18 lb 24

Black Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard gill nets 0.2 (below normal) 0.8 – 7.7 0.20 lb 1
2024-07-01 Standard trap nets 0.4 (normal) 0.3 – 3.2 0.12 lb 3

Largemouth Bass

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard trap nets 0.2 (below normal) 0.3 – 1.3 1.61 lb 2
1988-07-18 Standard gill nets 0.6 (normal) 0.3 – 1.7 0.83 lb 3
1988-07-18 Standard trap nets 0.5 (normal) 0.3 – 1.3 0.20 lb 4
2022-08-18 Backpack electrofishing 0.8 1
2022-08-18 50-ft beach seine 0.8 5
1983-07-20 Standard trap nets 0.1 (below normal) 0.3 – 1.3 0.50 lb 1
1998-07-20 Survey seining 3.3 13
1998-07-20 Standard trap nets 0.3 (below normal) 0.3 – 1.3 0.84 lb 2
2024-07-01 15-ft beach seine 0.3 1
2024-07-01 50-ft beach seine 1.9 13
2024-07-01 Standard trap nets 0.1 (below normal) 0.3 – 1.3 3.02 lb 1
2023-07-17 Standard gill nets 0.3 (normal) 0.3 – 1.7 3.10 lb 2
2023-07-17 Standard trap nets 0.4 (normal) 0.3 – 1.3 2.33 lb 4

Bowfin

Date Gear CPUE Normal Range Avg Weight Total Catch
2012-07-16 Standard trap nets 0.8 (normal) 0.4 – 1.3 4.79 lb 7
1988-07-18 Standard trap nets 0.5 (normal) 0.4 – 1.3 4.62 lb 4
1983-07-20 Standard trap nets 0.4 (below normal) 0.4 – 1.3 4.17 lb 3
1998-07-20 Standard trap nets 0.6 (normal) 0.4 – 1.3 4.03 lb 5
2024-07-01 Standard trap nets 1.1 (normal) 0.4 – 1.3 3.77 lb 9
2023-07-17 Standard trap nets 0.3 (below normal) 0.4 – 1.3 5.04 lb 3

Brown Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
1988-07-18 Standard trap nets 0.6 (normal) 0.4 – 2.1 0.54 lb 5
1988-07-18 Standard gill nets 0.4 (below normal) 0.5 – 2.5 0.62 lb 2
1983-07-20 Standard trap nets 0.3 (below normal) 0.4 – 2.1 1.00 lb 2
1998-07-20 Standard trap nets 0.8 (normal) 0.4 – 2.1 0.68 lb 6
2024-07-01 Standard trap nets 0.1 (below normal) 0.4 – 2.1 0.44 lb 1
2023-07-17 Standard trap nets 0.1 (below normal) 0.4 – 2.1 1.14 lb 1

Pumpkinseed

Date Gear CPUE Normal Range Avg Weight Total Catch
1988-07-18 Standard gill nets 0.4 0.30 lb 2
1988-07-18 Standard trap nets 3.6 (normal) 2.0 – 8.5 0.18 lb 29
2022-08-18 Backpack electrofishing 0.8 1
2022-08-18 15-ft beach seine 0.5 1
1983-07-20 Standard trap nets 1.8 (below normal) 2.0 – 8.5 0.32 lb 14
1998-07-20 Survey seining 0.8 3
1998-07-20 Standard trap nets 0.4 (below normal) 2.0 – 8.5 0.17 lb 3
2024-07-01 15-ft beach seine 0.3 1
2024-07-01 50-ft beach seine 0.1 1
2024-07-01 Standard trap nets 0.1 (below normal) 2.0 – 8.5 0.42 lb 1
2023-07-17 Standard trap nets 0.1 (below normal) 2.0 – 8.5 0.28 lb 1

CNM

Date Gear CPUE Normal Range Total Catch
2022-08-18 Backpack electrofishing 2.4 3

Golden Shiner

Date Gear CPUE Normal Range Avg Weight Total Catch
2022-08-18 50-ft beach seine 4.8 29
1998-07-20 Survey seining 1.0 4
2024-07-01 50-ft beach seine 0.3 2
2024-07-01 Standard trap nets 0.1 (normal) 0.1 – 0.5 0.07 lb 1

Bluntnose Minnow

Date Gear CPUE Normal Range Total Catch
2022-08-18 50-ft beach seine 0.3 2

Spottail Shiner

Date Gear CPUE Normal Range Total Catch
2022-08-18 50-ft beach seine 1.7 10
1998-07-20 Survey seining 11.8 47
2024-07-01 50-ft beach seine 1.0 7

Tadpole Madtom

Date Gear CPUE Normal Range Total Catch
2022-08-18 50-ft beach seine 0.7 4

BNS

Date Gear CPUE Normal Range Total Catch
2024-07-01 50-ft beach seine 0.3 2

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Fish Species

Species known to inhabit Mary. Click any species for a full fishing guide.

Black BullheadBlack CrappieBluegillBowfin (Dogfish)Brown BullheadLargemouth BassNorthern PikePumpkinseedRock BassWalleyeWhite SuckerYellow BullheadYellow Perch

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Data sourced from Minnesota DNR Division of Fish and Wildlife. Last verified: March 19, 2026. Learn how we maintain this data.