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| Nearest Town: Longville Primary County: Cass Survey Date: 07/07/2008 Inventory Number: 11027400 |
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| Ownership | Type | Description |
|---|---|---|
| DNR | Concrete | Public access on northeast shore. |
| Special and/or Experimental Fishing Regulations exist on this lake. Please refer to our online Minnesota Fishing Regulations. |
|
Lake Area (acres): 766.66 |
Dominant Bottom Substrate: N/A |
| Did you know? The annual budget for the Section of Fisheries is approximately $17 million, which is funded primarily by fishing license and stamp fees and by a federal excise tax on fishing and boating equipment. |
| Species | Number of fish per net | Average Fish Weight (lbs) |
Normal Range (lbs) |
||
|---|---|---|---|---|---|
| Caught | |||||
| Black Crappie | Trap net | 0.08 | 0.7 - 3.2 | 0.12 | 0.2 - 0.5 |
| Gill net | 0.50 | 0.5 - 2.7 | 0.43 | 0.2 - 0.4 | |
| Bluegill | Trap net | 33.75 | 5.6 - 42.3 | 0.17 | 0.1 - 0.3 |
| Gill net | 2.75 | N/A | 0.14 | N/A | |
| Bowfin (dogfish) | Trap net | 0.33 | 0.4 - 1.0 | 3.67 | 3.1 - 4.8 |
| Brown Bullhead | Trap net | 0.08 | 0.3 - 1.5 | 0.10 | 0.6 - 1.0 |
| Gill net | 0.25 | 0.3 - 2.2 | 0.34 | 0.6 - 1.0 | |
| Hybrid Sunfish | Trap net | 2.08 | N/A | 0.31 | N/A |
| Largemouth Bass | Trap net | 0.75 | 0.3 - 1.1 | 0.91 | 0.2 - 0.9 |
| Gill net | 2.83 | 0.3 - 1.2 | 0.89 | 0.5 - 1.1 | |
| Northern Pike | Trap net | 0.50 | N/A | 1.82 | N/A |
| Gill net | 11.42 | 3.1 - 8.5 | 2.00 | 1.5 - 2.7 | |
| Pumpkinseed | Trap net | 2.58 | 1.7 - 8.2 | 0.25 | 0.1 - 0.2 |
| Gill net | 1.17 | N/A | 0.16 | N/A | |
| Rock Bass | Trap net | 1.83 | 0.6 - 2.5 | 0.27 | 0.2 - 0.5 |
| Gill net | 5.92 | 0.3 - 2.0 | 0.27 | 0.3 - 0.5 | |
| Smallmouth Bass | Trap net | 0.33 | 0.1 - 0.4 | 1.34 | 0.1 - 0.6 |
| Gill net | 0.75 | 0.2 - 1.0 | 1.05 | 0.7 - 1.9 | |
| Tullibee (cisco) | Gill net | 0.83 | 0.7 - 6.5 | 2.16 | 0.6 - 1.6 |
| Walleye | Trap net | 0.08 | 0.2 - 0.7 | 4.19 | 0.9 - 2.9 |
| Gill net | 3.92 | 1.3 - 5.5 | 1.84 | 1.2 - 2.4 | |
| White Sucker | Gill net | 0.75 | 0.5 - 3.5 | 2.85 | 1.6 - 2.4 |
| Yellow Bullhead | Trap net | 1.08 | 1.5 - 7.7 | 0.60 | 0.5 - 0.8 |
| Gill net | 2.33 | 0.9 - 10.0 | 0.53 | 0.5 - 0.7 | |
| Yellow Perch | Trap net | 0.17 | 0.5 - 2.7 | 0.26 | 0.1 - 0.2 |
| Gill net | 2.17 | 2.5 - 24.2 | 0.12 | 0.1 - 0.2 | |
| Species | Number of fish caught in each category (inches) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0-5 | 6-8 | 9-11 | 12-14 | 15-19 | 20-24 | 25-29 | 30+ | Total | |
| black crappie | 0 | 4 | 3 | 0 | 0 | 0 | 0 | 0 | 7 |
| bluegill | 210 | 228 | 0 | 0 | 0 | 0 | 0 | 0 | 438 |
| bowfin (dogfish) | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 4 |
| brown bullhead | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 4 |
| hybrid sunfish | 4 | 21 | 0 | 0 | 0 | 0 | 0 | 0 | 25 |
| largemouth bass | 2 | 10 | 8 | 21 | 2 | 0 | 0 | 0 | 43 |
| northern pike | 0 | 0 | 0 | 3 | 53 | 71 | 16 | 0 | 143 |
| pumpkinseed | 14 | 31 | 0 | 0 | 0 | 0 | 0 | 0 | 45 |
| rock bass | 21 | 71 | 1 | 0 | 0 | 0 | 0 | 0 | 93 |
| smallmouth bass | 0 | 5 | 3 | 2 | 3 | 0 | 0 | 0 | 13 |
| tullibee (cisco) | 0 | 0 | 2 | 0 | 8 | 0 | 0 | 0 | 10 |
| walleye | 0 | 0 | 0 | 18 | 16 | 12 | 2 | 0 | 48 |
| white sucker | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 9 |
| yellow bullhead | 1 | 10 | 29 | 1 | 0 | 0 | 0 | 0 | 41 |
| yellow perch | 8 | 18 | 2 | 0 | 0 | 0 | 0 | 0 | 28 |
| For the record, the largest Hybrid Sunfish taken in Minnesota weighed 1 lb., 12 oz. and was caught:
When: 7/9/94 Statistics: 11.5" length, 12" girth |
Fish Stocked by Species for the Last Ten Years
| Year | Species | Size | Number | Pounds |
|---|---|---|---|---|
| 2008 | Walleye | fingerlings | 20,448 | 672.0 |
| 2006 | Walleye | fingerlings | 7,653 | 692.0 |
| 2005 | Walleye | fingerlings | 5,264 | 339.0 |
| Walleye | adults | 4 | 7.0 | |
| 2003 | Walleye | fingerlings | 10,180 | 686.0 |
| 2001 | Walleye | fry | 51,660 | 63.0 |
| 2000 | Walleye | fingerlings | 236 | 37.0 |
| Walleye | adults | 66 | 33.0 | |
| Walleye | yearlings | 150 | 100.0 |
| Privately Stocked Fish |
|---|
| * indicates privately stocked fish. Private stocking includes fish purchased by the DNR for stocking and fish purchased and stocked by private citizens and sporting groups. |
| Stocking Fish Sizes |
|---|
| Fry - Newly hatched fish that are ready to be stocked usually called "swim-ups". Walleye fry are 1/3 of an inch or around 8 mm. |
| Fingerling - Fingerlings are one to six months old and can range from a size of one to twelve inches depending on the species. Walleye fingerlings range from three to eight inches each fall. |
| Yearling - Yearling fish are at least one year old. A one-year-old fish can range from three to twenty inches depending on the species. Walleye yearlings average from six to twelve inches. |
| Adult - Adult fish are fish that have reached maturity. Depending on the species, maturity can be reached at two years of age. Walleye reach maturity between the ages of four and six years. |
No fish consumption guidelines are available for this lake. For more information, see the "Fish Consumption Advice" pages at the Minnesota Department of Health.
Blackwater Lake is a 722-acre lake located near Longville, MN that has 7.5 miles of shoreline and a maximum depth of 67 feet. There is a Minnesota Department of Natural Resources (DNR) public access on the north shore of the east bay off County Road 11. The DNR has classified Minnesotas lakes into 43 different classes based on physical, chemical and other characteristics. Blackwater Lake is in Lake Class 25; lakes in this class are deep, clear, and irregularly shaped lakes.
Blackwater is known as an excellent lake to catch some nice largemouth bass, and the lake has a no-kill regulation for bass requiring all bass caught to be released. Largemouth bass sampled by the DNR in 2008 had a mean length of 13 inches with fish up to 18 inches long sampled. Anglers fishing the deepwater structure might catch a bonus smallmouth bass, which also has to be released due the no-kill regulation. Angler targeting black crappie may find a good evening bite during early spring. Walleye are present in Blackwater Lake and the catch rate was similar to historical catch rates. The mean length and weight were 19 inches and 2.5 pounds. Fish up to 28 inches were sampled. The size structure for walleye consisted of larger fish with 29% of the walleye sampled greater than 20 inches. Northern pike are abundant in Blackwater Lake and the catch rate has been historically high compared to other Lake Class 25 lakes. The mean length for northern pike was 21 inches and fish up to 29 inches were sampled.
Anglers can help maintain or improve the quality of fishing by practicing selective harvest. Selective harvest allows for the harvest of smaller fish for table fare, but encourages release of medium- to large-sized fish. Releasing these fish can help maintain balance in the fish community in Blackwater Lake and provide anglers the opportunity to catch more and larger fish in the future.
Shoreline habitat consists of aquatic plants, woody plants and natural lake bottom soils. Plants in the water and at the waters edge provide habitat, prevent erosion and absorb excess nutrients. Shrubs, trees, and woody debris such as fallen trees or limbs provide good habitat both above and below the water and should be left in place. Natural lake bottom materials like silt or gravel are more ecologically productive than pure sand trucked in for a swimming beach. By leaving a buffer strip of natural vegetation along the shoreline, property owners can reduce erosion, help maintain water quality, and provide habitat and travel corridors for wildlife. More specific information on protecting or restoring shorelines and watersheds is available through the local MNDNR Fisheries office. ?
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For more information on this lake, contact:
Area Fisheries Supervisor | Lake maps can be obtained from: Minnesota Bookstore |
For general DNR Information, contact: DNR Information Center 500 Lafayette Road St. Paul, MN 55155-4040 TDD: (651) 296-6157 or (888) MINNDNR Internet: www.dnr.state.mn.us E-Mail: info.dnr@state.mn.us |  Turn in Poachers (TIP):Toll-free: (800) 652-9093 |
© 2010
MN Department of Natural Resources
