Koop

Stearns County, Minnesota — DOW #73016600

40 Surveys
60.13
Acres
52 ft
Max Depth
15.7 ft
Mean Depth
11
Fish Species
4
Local Guides

DNR Fish Surveys

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

Brown Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard trap nets 0.3 (below normal) 0.5 – 5.4 0.77 lb 2
1987-07-29 Standard trap nets 2.5 (normal) 0.5 – 5.4 0.50 lb 10
1987-07-29 Standard gill nets 16.0 (above normal) 0.7 – 6.2 0.38 lb 32

Yellow Perch

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard trap nets 0.2 (below normal) 0.3 – 1.5 0.04 lb 1
2010-07-19 Standard gill nets 0.5 (below normal) 1.5 – 12.8 0.09 lb 1
1987-07-29 Standard trap nets 2.5 (above normal) 0.3 – 1.5 0.13 lb 10
1987-07-29 Standard gill nets 5.5 (normal) 1.5 – 12.8 0.13 lb 11

Northern Pike

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard gill nets 4.5 (normal) 2.5 – 7.9 2.89 lb 9
1987-07-29 Standard gill nets 5.5 (normal) 2.5 – 7.9 1.87 lb 11

Largemouth Bass

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard electrofishing 16.2 2.67 lb 11
2010-07-19 Standard gill nets 0.5 (normal) 0.3 – 1.1 1.50 lb 1
2010-07-19 Standard trap nets 0.8 (above normal) 0.3 – 0.8 1.41 lb 5
1987-07-29 Standard gill nets 1.0 (normal) 0.3 – 1.1 1.15 lb 2
1987-07-29 Standard trap nets 2.8 (above normal) 0.3 – 0.8 0.38 lb 11

Bluegill

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 15-ft beach seine 0.3 1
2010-07-19 Standard gill nets 4.5 0.13 lb 9
2010-07-19 Standard trap nets 7.8 (normal) 6.5 – 59.6 0.16 lb 47
1987-07-29 Standard gill nets 2.5 0.22 lb 5
1987-07-29 Standard trap nets 41.8 (normal) 6.5 – 59.6 0.13 lb 167

Yellow Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard trap nets 0.7 (below normal) 0.8 – 5.0 0.93 lb 4
1987-07-29 Standard gill nets 3.5 (normal) 1.0 – 6.9 0.67 lb 7
1987-07-29 Standard trap nets 5.5 (above normal) 0.8 – 5.0 0.49 lb 22

Black Crappie

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard electrofishing 1.5 0.21 lb 1
2010-07-19 Standard gill nets 3.5 (normal) 1.9 – 18.0 0.28 lb 7
2010-07-19 Standard trap nets 0.8 (below normal) 1.8 – 18.1 0.43 lb 5
1987-07-29 Standard gill nets 18.0 (normal) 1.9 – 18.0 0.12 lb 36
1987-07-29 Standard trap nets 21.3 (above normal) 1.8 – 18.1 0.15 lb 85

Johnny Darter

Date Gear CPUE Normal Range Total Catch
2010-07-19 15-ft beach seine 0.3 1

Common Carp

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard trap nets 0.2 (below normal) 0.3 – 2.6 3.31 lb 1
1987-07-29 Standard trap nets 0.5 (normal) 0.3 – 2.6 5.70 lb 2

Hybrid Sunfish

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard trap nets 0.5 0.26 lb 3

Pumpkinseed

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard gill nets 1.0 0.05 lb 2
1987-07-29 Standard trap nets 2.8 (normal) 0.8 – 5.3 0.07 lb 11

Bowfin

Date Gear CPUE Normal Range Avg Weight Total Catch
2010-07-19 Standard gill nets 1.0 (normal) 0.3 – 1.5 3.61 lb 2
2010-07-19 Standard trap nets 0.5 (normal) 0.3 – 1.0 3.16 lb 3
1987-07-29 Standard gill nets 1.0 (normal) 0.3 – 1.5 3.30 lb 2

Black Bullhead

Date Gear CPUE Normal Range Avg Weight Total Catch
1987-07-29 Standard trap nets 3.0 (normal) 1.3 – 26.0 0.42 lb 12
1987-07-29 Standard gill nets 39.5 (normal) 5.2 – 56.2 0.38 lb 79

Golden Shiner

Date Gear CPUE Normal Range Avg Weight Total Catch
1987-07-29 Standard gill nets 2.5 (normal) 0.7 – 3.9 0.12 lb 5

White Sucker

Date Gear CPUE Normal Range Avg Weight Total Catch
1987-07-29 Standard gill nets 4.0 (above normal) 0.5 – 2.0 2.04 lb 8

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Fish Species

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

Black CrappieBluegillBowfin (Dogfish)Brown BullheadCommon CarpHybrid SunfishLargemouth BassNorthern PikePumpkinseedYellow 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.