Minnesota DNR fisheries surveys · latest May 31, 2023
Species recorded at Blackduck Lake
8 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 Blackduck Lake
No stocking record for Blackduck 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 Blackduck Lake. Minnesota DNR lists the public access sites, including ramp type and parking, in the documents below.
Survey results in full
Minnesota DNR's Targeted Survey on May 31, 2023 caught 233.38 smallmouth bass per hour of electrofishing at Blackduck Lake. Length samples in the latest survey that recorded them ran 2–19 inches.
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Blackduck Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. 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: 2023-05-31 (Targeted Survey).
11 surveys on file · most recent 2023-05-31 (Targeted Survey)
| Species | Catch rate (CPUE) | Size | Avg weight |
|---|---|---|---|
| Smallmouth Bass | 64.99 | 2–19 in 2023-05-31 | 0.86 lb |
| Yellow Perch | 36.11 | 2–12 in 2022-06-01 | 0.2 lb |
| Bluegill | 6.39 | 3–9 in 2022-06-01 | 0.34 lb |
| White Sucker | 6.22 | 8–19 in 2022-06-01 | 1.56 lb |
| Walleye | 4.97 | 7–28 in 2022-06-01 | 2.5 lb |
| Pumpkinseed | 2.03 | 5–8 in 2022-06-01 | 0.27 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.
Smallmouth Bass
Yellow Perch
Bluegill
White Sucker
From the 2023-05-31 survey
Black Duck Lake is located approximately 10 miles north of the city of Orr. Black Duck is a productive class 5 lake with 1,250 surface acres and a maximum depth of 30 feet. Approximately 498 acres (40%) are less than 15 feet deep. Secchi depth during the 2022 survey was 10 feet, but the lake is prone to algae blooms…
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Blackduck Lake. 3 reports on file.
These links open on the official state DNR websites (Wisconsin DNR survey PDFs · Minnesota DNR LakeFinder).
- —Fisheries Lake Survey — Black DuckFisheries Lake Survey · MN DNR LakeFinder
- —Aquatic Plant Report — Black Duck (1906)Aquatic Plant Report · MN DNR LakeFinder
- —Public Water Access Sites — Black DuckPublic Water Access Sites · MN DNR LakeFinder
Common questions
What fish are in Blackduck Lake?
Minnesota DNR's Targeted Survey on May 31, 2023 caught 233.38 smallmouth bass per hour of electrofishing at Blackduck Lake. Length samples in the latest survey that recorded them ran 2–19 inches. Minnesota DNR lists 8 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 Blackduck Lake last surveyed?
The most recent fisheries survey on file for Blackduck Lake is dated May 31, 2023. 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 Blackduck Lake stocked?
No stocking record for Blackduck 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 Blackduck Lake fishes?
A DNR fisheries survey reports fish abundance and catch rates, not water quality. LakeQuality shows Blackduck Lake’s water-quality measurements separately, and the water-quality trend over 6 years of monitoring is stable. 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 Blackduck Lake
Top-rated places to stay near Blackduck Lake
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