O'Brien Lake Overview
Fishing Regulations in O'Brien Lake
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
- Catch and release fishing for largemouth and smallmouth bass is open year round unless otherwise noted.
- Motor Trolling is allowed with 1 hook, bait, or lure per angler, and 3 hooks, baits, or lures maximum per boat.
Special Species Regulations
- Shovelnose sturgeon: Closed: No fishing allowed.
- 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.
- Rough fish: Open All Year: No minimum length limit and the daily bag limit is unlimited.
- Rock, yellow, and white bass: Open All Year: No minimum length limit and the daily bag limit is unlimited.
- Paddlefish: Closed: No fishing allowed.
- Lake sturgeon: Closed: No fishing allowed.
- Cisco and whitefish: Open All Year: No minimum length limit and the daily bag limit is 10.
- Bullheads: Open All Year: No minimum length limit and the daily bag limit is unlimited.
- Walleye, sauger, and hybrids: May 4, 2024 to March 2, 2025: The minimum length is 15”, but walleye, sauger, and hybrids from 20” to 24” may not be kept, and only 1 fish over 24” is allowed. The daily bag limit is 3.
- Catfish: Open All Year: No minimum length limit and the daily bag limit is 10.
- Panfish: Open All Year: No minimum length limit and the daily bag limit is 25.
- Largemouth bass and smallmouth bass: April 1, 2024 to May 3, 2024: The minimum length limit is 18” and the daily bag limit is 1.
- Smallmouth bass: May 4, 2024 to June 14, 2024: Fish may not be harvested (catch and release only).
- Largemouth bass: May 4, 2024 to June 14, 2024: The minimum length limit is 18” and the daily bag limit is 1.
- Muskellunge and hybrids: May 25, 2024 to December 31, 2024: The minimum length limit is 40” and the daily bag limit is 1.
- Northern pike: May 4, 2024 to March 2, 2025: No minimum length limit and the daily bag limit is 5.
- Trout: See specific regulations: https://dnr.wisconsin.gov/topic/fishing/trout/.
- White perch: Open All Year: The daily bag limit is 0, one may be killed and possessed for transport to a wdnr office.
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Fish Species
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.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.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.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.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.
