Minnesota DNR fisheries surveys · latest June 16, 2025
Margaret Lake FishingDWater-quality grade D
Minnesota DNR surveys at Margaret Lake average 20.91 bluegill per unit of sampling effort (CPUE) across 11 surveys. The most recent is a Standard Survey dated June 16, 2025. Length samples in the latest survey that recorded them ran 2–8 inches. In Cass County, Minnesota, Margaret Lake carries an overall water-quality grade of D. Water clarity averages 5.5 feet of visibility. The survey figures on this page are Minnesota DNR's own; the water-quality grade comes from EPA Water Quality Portal samples. Neither is a forecast of today's bite.
Species recorded at Margaret Lake
17 species on the Minnesota DNR list for this lake. A species on the list has been recorded here; it does not mean it is catchable today or in every part of the lake.
Stocking at Margaret Lake
No stocking record for Margaret Lake appears in the Minnesota DNR material on file. That is an absence in the published record, not a confirmation that the lake is unstocked — some waters are managed as naturally reproducing and never appear in a stocking list at all.
Survey results in full
Minnesota DNR surveys at Margaret Lake average 20.91 bluegill per unit of sampling effort (CPUE) across 11 surveys. The most recent is a Standard Survey dated June 16, 2025. Length samples in the latest survey that recorded them ran 2–8 inches.
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Margaret Lake D from EPA Water Quality Portal chemistry, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
11 surveys on file from MN DNR Fisheries. Most recent: 2025-06-16 (Standard Survey).
Top Species by Catch Rate
| Species | Avg catch rate (CPUE) | Avg Weight |
|---|---|---|
| Bluegill | 20.91 | 0.15 lb |
| Yellow Perch | 11.28 | 0.1 lb |
| Green Sunfish | 6.80 | 0.09 lb |
| Yellow Bass | 4.45 | 0.8 lb |
| Black Bullhead | 4.26 | 0.54 lb |
CPUE = catch per unit effort, averaged across surveys (excludes juvenile shoreline seining). Higher CPUE means more abundant in standardized sampling. This is not a weekly bite report.
Length Distributions
Number of fish caught at each inch class in the most recent survey that recorded lengths. Red dashed line marks an approximate trophy threshold for that species.
Bluegill
Yellow Perch
Green Sunfish
Yellow Bass
From the 2025-06-16 survey
Margaret Lake is a 222-acre lake near the city of Nisswa in Cass County. It is part of the Gull Lake Chain of Lakes, with access possible through a navigable channel connection from Upper Gull. Northern Pike is the primary management species and a special regulation is used to achieve our management objective on the…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Margaret Lake. 2 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — MargaretFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Margaret (1534)Aquatic Plant Report · MN DNR LakeFinder
Common questions
What fish are in Margaret Lake?
Minnesota DNR surveys at Margaret Lake average 20.91 bluegill per unit of sampling effort (CPUE) across 11 surveys. The most recent is a Standard Survey dated June 16, 2025. Length samples in the latest survey that recorded them ran 2–8 inches. Minnesota DNR lists 17 species for the lake in total. Those are survey results, not a catch report: a net set on one date measures what was in that net.
When was Margaret Lake last surveyed?
The most recent fisheries survey on file for Margaret Lake is dated June 16, 2025. Survey intervals vary by lake and by species; a gap of several years between surveys is normal and does not mean the record is missing.
Is Margaret Lake stocked?
No stocking record for Margaret Lake appears in the Minnesota DNR material on file. That is not the same as a confirmed unstocked lake: it means no stocking document was published for it in the records this page draws on.
Does the water-quality grade tell me how Margaret Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not a water-quality grade. LakeQuality grades Margaret Lake D from EPA Water Quality Portal chemistry, and the water-quality trend over 6 years of monitoring is improving. Catch rate is not a swim clearance and is not a weekly bite report.
Before you eat what you catch
A water-quality grade is not a consumption advisory. Mercury and PCB advice for Minnesota waters comes from MDH, and it is issued per species and per size class — a lake can grade well and still carry a meal limit on larger predator fish.
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