Mosinee Flowage

Mosinee Flowage

Size
942ac
Boat Launch
Yes
Carry-in Launch
No
Toilet
No
Boat Dock
No
Species in Mosinee Flowage
Muskellunge
Muskellunge
Walleye
Walleye
Largemouth bass
Largemouth bass
Crappie
Crappie
Smallmouth bass
Smallmouth bass
Bluegill
Bluegill
Perch
Perch
Northern pike
Northern pike
Channel catfish
Channel catfish
Pumpkinseed
Pumpkinseed
Rock bass
Rock bass
Sturgeon
Sturgeon

Overview

Mosinee Flowage Map

Fishing Regulations

Special Fishing regulations: This lake has special fishing regulations that differ from statewide or border water regulations for those species identified below and take precedence. Regulations listed below are currently in place. Visit the fishing regulations page for links to upcoming regulations for specific lakes.

Special Waterbody Regulations

  • Hook and line fishing is open all year for fish species except muskellunge, lake sturgeon, trout, paddlefish and threatened or endangered species. Motor Trolling is allowed with up to 3 hooks, baits, or lures, per angler.

Special Species Regulations

  • Walleye: See Walleye, Sauger, and Hybrids.
  • Panfish: Open all year: No minimum length limit and the daily bag limit is 25
  • Walleye, Saugers, and Hybrids: Open all year: The minimum length is 15”, but walleye, sauger, and hybrids from 20” to 28” may not be kept, and only 1 fish over 28” is allowed. The daily bag limit is 3
  • Bullheads: Open all year: No minimum length limit and the daily bag limit is unlimited
  • Catfish: Open all year: No minimum length limit and the daily bag limit is 10
  • Cisco and whitefish: Open all year: No minimum length limit and the daily bag limit is 10
  • Lake sturgeon: Closed. No fishing allowed.
  • Muskellunge and hybrids: May 24, 2025 to December 31, 2025: The minimum length limit is 50”, and the daily bag limit is 1
  • Northern pike: Open all year: No minimum length limit and the daily bag limit is 5
  • Largemouth bass and smallmouth bass: Open all year: The minimum length limit is 14” and the daily bag limit is 5
  • Largemouth bass: See Largemouth and Smallmouth Bass.
  • Smallmouth bass: See Largemouth and Smallmouth Bass.
  • Paddlefish: Closed. No fishing allowed.
  • Rock, Yellow, and White Bass: Open all year: No minimum length limit and the daily bag limit is unlimited
  • Rough fish: Open all year: No minimum length limit and the daily bag limit is unlimited
  • Round goby: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
  • Ruffe: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
  • Shovelnose sturgeon: Closed. No fishing allowed.
  • Trout and salmon: See Trout regulations layer.
  • White perch: Open all year: The daily bag limit is 0, one may be killed and possessed for transport to a WDNR Office
  • Bluegill: See Panfish.
  • Bowfin: See Rough Fish.
  • Channel catfish: See Catfish.
  • Crappies: See Panfish.
  • Flathead catfish: See Catfish.
  • Hybrid, Striped, Yellow, and White Bass: See Rock, Yellow and White Bass.
  • Longnose gar: See Rough Fish.
  • Sauger and hybrids: See Walleye, Sauger, and Hybrids.
  • Shortnose gar: See Rough Fish.
  • Urban waters gamefish: This waterbody is not considered an urban water, Urban Waters Gamefish regulations do not apply.
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Fish Species

Bluegill
fish
7-13 in
Length Range
9 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Jun
2019
Aug
Trophy Potential
This lake has a history of supporting trophy sized bluegill based on past surveys.
Survey YearLargest Fish (in)
20199
Channel catfish
fish
7-13 in
Length Range
9 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Jun
2019
Aug
Crappie
fish
7-13 in
Length Range
9 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Jun
2019
Aug
Trophy Potential
This lake has a history of supporting trophy sized crappie based on past surveys.
Survey YearLargest Fish (in)
201916
Largemouth bass
fish
20-21 in
Length Range
21 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Electro
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2010
May
2019
May
2019
Jun
Trophy Potential
This lake has a history of supporting trophy sized largemouth-bass based on past surveys.
Survey YearLargest Fish (in)
201920
Muskellunge
fish
31-45 in
Length Range
38 in
Length Range
2021
Surveyed
Abundance (CPUE)
Above Avg.
2021
Surveyed
Electro
Catch Method
1.9048
0Statewide Range6.56125

Mosinee Flowage Muskellunge abundance

Average range for similar lakes

Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Oct
2021
May
Trophy Potential
This lake has a history of supporting trophy sized muskellunge based on past surveys.
Survey YearLargest Fish (in)
201948
Northern pike
fish
7-13 in
Length Range
9 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Jun
2019
Aug
Perch
fish
20-21 in
Length Range
21 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2010
May
2019
May
2019
Jun
Pumpkinseed
fish
3-6 in
Length Range
5 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2010
May
2019
May
Rock bass
fish
20-21 in
Length Range
21 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Jun
Smallmouth bass
fish
8-23 in
Length Range
12 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Electro
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Aug
2019
Oct
Trophy Potential
This lake has a history of supporting trophy sized smallmouth-bass based on past surveys.
Survey YearLargest Fish (in)
201919
Sturgeon
fish
No survey data
Abundance (CPUE)
No abundance data
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
No Survey Data
Walleye
fish
8-23 in
Length Range
12 in
Length Range
2019
Surveyed
Abundance (CPUE)
Unknown
2019
Surveyed
Trapnet
Catch Method
Understanding Abundance

Abundance ratings are based on Catch Per Unit Effort (CPUE) measurements conducted by the MN DNR, and represent a snapshot of a species population at a given point in time.

Source: Minnesota Department of Natural Resources. Survey cadence may vary by state and water body.
Species Lengths
2019
Aug
2019
Oct
Trophy Potential
This lake has a history of supporting trophy sized walleye based on past surveys.
Survey YearLargest Fish (in)
201928