Minnesota DNR fisheries surveys · latest July 15, 2019
Species recorded at Ann Lake
10 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 Ann Lake
No stocking record for Ann 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.
Getting on the water
1 public boat landing is recorded on Ann Lake. Minnesota DNR lists the public access sites, including ramp type and parking, in the documents below.
Survey results in full
Minnesota DNR's Standard Survey on July 15, 2019 caught 17.50 northern pike per gill net at Ann Lake. Length samples in the latest survey that recorded them ran 8–36 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Ann Lake’s water-quality measurements separately, and the water-quality trend over 3 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
DNR Fisheries Survey Summary
6 surveys on file from MN DNR Fisheries. Most recent: 2019-07-15 (Standard Survey).
6 surveys on file · most recent 2019-07-15 (Standard Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Bluegill | 65.14 | 2–7 in 2019-07-15 | 0.1 lb |
| Yellow Bullhead | 43.62 | 5–14 in 2019-07-15 | 0.44 lb |
| Pumpkinseed | 7.20 | 3–9 in 2019-07-15 | 0.16 lb |
| Northern Pike | 6.80 | 8–36 in 2019-07-15 | 2.39 lb |
| Largemouth Bass | 5.72 | 6–20 in 2019-07-15 | 1.65 lb |
CPUE = catch per unit effort, fish caught per net per set in a standardised survey. It measures abundance, not size, and 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 Bullhead
Pumpkinseed
Northern Pike
From the 2019-07-15 survey
Ann Lake is located in Sherburne County, five miles west of Zimmerman. The lake is 184 acres with a maximum depth of 26 feet. The watershed is small and is dominated by forest and the lake is lightly developed. The lake has excellent water quality and a diverse aquatic plant community. A public access is located on…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Ann Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — AnnFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Ann (1369)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — AnnPublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Ann Lake?
Minnesota DNR's Standard Survey on July 15, 2019 caught 17.50 northern pike per gill net at Ann Lake. Length samples in the latest survey that recorded them ran 8–36 inches. Minnesota DNR lists 10 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 Ann Lake last surveyed?
The most recent fisheries survey on file for Ann Lake is dated July 15, 2019. 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 Ann Lake stocked?
No stocking record for Ann 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.
Do the water-quality readings tell me how Ann Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Ann Lake’s water-quality measurements separately, and the water-quality trend over 3 years of monitoring is declining. Catch rate is not a swim clearance and is not a weekly bite report.
Before you eat what you catch
Water-quality readings are 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 with clear, low-nutrient water can still carry a meal limit on larger predator fish.
Where to stay near Ann Lake
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