Fisheries Lake Survey

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Name: Round

Nearest Town: McGregor
Primary County: Aitkin
Survey Date: 06/15/2009
Inventory Number: 01007000
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Public Access Information

Ownership Type Description
DNR Concrete


Lake Characteristics

Lake Area (acres): 185.03
Littoral Area (acres): 65
Maximum Depth (ft): 52
Water Clarity (ft): 9.5

Dominant Bottom Substrate: Sand (Abundant)
Abundance of Aquatic Plants: 32 Varieties Sampled
Maximum Depth of Plant Growth (ft): 10


Did you know? Ongoing habitat improvement and maintenance work is conducted on trout streams that have publicly owned land or easements.

Fish Sampled for the 2009 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Bullhead Trap net 0.67 0.3 - 3.2 0.56 0.4 - 0.8
Black Crappie Trap net 5.44 0.7 - 3.4 0.24 0.2 - 0.6
Gill net 2.17 0.6 - 3.5 0.21 0.2 - 0.5
Bluegill Trap net 52.33 6.1 - 46.6 0.25 0.1 - 0.3
Bowfin (dogfish) Trap net 0.56 0.4 - 1.3 4.73 2.9 - 4.9
Brown Bullhead Trap net 0.33 0.4 - 2.1 0.81 0.6 - 1.1
Hybrid Sunfish Trap net 1.33 N/A 0.33 N/A
Northern Pike Trap net 1.11 N/A 1.87 N/A
Gill net 3.17 3.5 - 10.5 1.71 1.6 - 2.9
Pumpkinseed Trap net 4.22 2.0 - 8.5 0.21 0.1 - 0.2
Rock Bass Trap net 0.33 0.5 - 1.8 0.35 0.2 - 0.5
Gill net 0.17 0.3 - 1.9 0.50 0.2 - 0.5
Tullibee (cisco) Gill net 2.00 0.5 - 4.8 0.87 0.7 - 1.9
Walleye Trap net 0.11 0.3 - 0.7 7.82 1.1 - 3.4
Gill net 0.67 1.3 - 5.0 1.31 1.3 - 2.5
White Sucker Gill net 0.33 0.5 - 2.7 2.33 1.8 - 2.5
Yellow Bullhead Trap net 2.89 1.3 - 9.8 0.71 0.5 - 0.8
Gill net 0.17 1.0 - 10.5 0.73 0.4 - 0.8
Yellow Perch Trap net 0.11 0.5 - 3.3 0.67 0.1 - 0.2
Gill net 2.67 3.4 - 43.6 0.14 0.1 - 0.2
Normal Ranges represent typical catches for lakes with similar physical and chemical characteristics.


Length of Selected Species (Trapnet, Gillnet) Sampled for the 2009 Survey Year

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 bullhead 0 0 6 0 0 0 0 0 6
black crappie 8 45 9 0 0 0 0 0 62
bluegill 106 358 2 0 0 0 0 0 471
bowfin (dogfish) 0 0 0 0 0 4 1 0 5
brown bullhead 0 0 2 1 0 0 0 0 3
hybrid sunfish 2 10 0 0 0 0 0 0 12
northern pike 0 0 2 3 13 5 6 0 29
pumpkinseed 8 30 0 0 0 0 0 0 38
rock bass 0 4 0 0 0 0 0 0 4
tullibee (cisco) 0 1 0 11 0 0 0 0 12
walleye 0 1 0 1 2 0 1 0 5
white sucker 0 0 0 0 2 0 0 0 2
yellow bullhead 0 1 25 1 0 0 0 0 27
yellow perch 6 8 3 0 0 0 0 0 17


For the record, the largest Muskellunge taken in Minnesota weighed 54 lbs. and was caught:

    Where: Lake Winnibigoshish, Itasca County
    When: 1957
    Statistics: 56" length, 27.8" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2012 Walleye2 fingerlings 2,001 129.9
2010 Walleye1 fingerlings 2,015 130.0
2005 Walleye yearlings 520 130.0

Stocking Notes
1 - indicates fish purchased and stocked by private citizens and sporting groups.
2 - indicates fish purchased by the DNR for stocking.

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.

Fish Consumption Guidelines

These fish consumption guidelines help people make choices about which fish to eat and how often. Following the guidelin es enables people to reduce their exposure to contaminants while still enjoying the many benefits from fish.

Pregnant Women, Women who may become pregnant and Children under age 15

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
ROUND
Aitkin Co., 01007000
Bluegill Sunfish   All sizes     Mercury
Cisco   All sizes     Mercury
Crappie     All sizes   Mercury
Northern Pike     All sizes   Mercury
Walleye     All sizes   Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
ROUND
Aitkin Co., 01007000
Bluegill Sunfish All sizes        
Cisco   All sizes     Mercury
Crappie   All sizes     Mercury
Northern Pike   All sizes     Mercury
Walleye   All sizes     Mercury

DOWID - MN DNR, Division of Waters' lake ID number.

Contaminants listed were measured at levels that trigger advice to limit consumption.

Listing of consumption guidelines do not imply the fish are legal to keep, MN DNR fishing regulations should be consulted.

Dioxin
Mercury
PCBS - Polychlorinated biphenyls
PFOS - Perfluorooctane sulfanate


Status of the Fishery (as of 06/15/2009)

Round Lake is located about three miles northwest of McGregor with a public access located on the southeast side of the lake. This scenic lake is 186 acres in size and has only six cabins and a summer camp located on the lake. The shoreline is lightly developed and has a firm sand bottom ringed primarily by bulrush, which provides habitat for nesting bluegill, pumpkinseed sunfish and black crappies. The lake has been managed as a northern pike, bluegill and black crappie lake.

The fish community in Round Lake has remained stable and healthy over the years. The abundance of bluegill and black crappie have both shown increases since the last survey in 1999. The size structure of the panfish in Round Lake has always been favorable and remained so in 2009. The mean size for bluegill was 6.7 inches with individuals sampled up to 9.1 inches. Although not known for producing large numbers of crappies, catch rates were up in this survey. The average size of a black crappie was 7.5 inches in 2009, with a few fish in the sample between 10 and 12 inches. Anglers can find some decent pumpkinseed and hybrid sunfish as well.

Round Lake is not known as a bass lake. In fact, only 1 largemouth bass has ever been captured in conventional survey gear dating back to 1973. There have been some juvenile bass captured in seining assessments and a few were captured in the seine in 2009, which is an indication that some limited reproduction is occurring.

Walleye occur naturally in Round Lake, but sometimes are stocked when surplus fingerlings are available to boost the population. Walleye abundance has been below average in most surveys to date, including 2009.

Round Lake is unique in that it has a population of a coldwater species called tullibee or cisco. In the past, tullibee numbers have been above average in this lake, and peaked at over 18 per gill net lift in the early 1990's. However, tullibee numbers have dropped for the third survey in a row and are currently at an all time low of 2 per net, which is still near the average for this lake class. Tullibee populations are known to be particularly sensitive to environmental changes, which may have played a role in their decreasing abundance. When available, tullibees can provide an excellent source of forage for game fish, especially northern pike, allowing them to reach large sizes.

Northern pike abundance has remained stable at low levels over the past six surveys, dating back to 1973, and remained low in 2009. The presence of tullibee does not seem to be helping the pike reach large sizes in this lake as the average size was less than 20 inches. Anglers can help maintain and improve the health of the fishery in Round Lake by harvesting smaller pike, and releasing the larger pike.

Yellow perch serve a dual purpose as another important forage species for pike in Round Lake, while at the same time having positive effects on bluegill populations. Densities of yellow perch had been relatively stable on the lower end of the normal range for this lake type, until peaking in 1999 at 11.5 per net. Subsequently, their abundance decreased to 2.7 per net in 2009, which is again near the long term median for Round Lake. Yellow perch exhibited slower than normal growth for all ages except age 1. The largest perch captured was 11.2 inches long.

Other species in the fish community include white sucker, brown, yellow and black bullheads, bowfin, and rock bass.


For more information on this lake, contact:

Area Fisheries Supervisor
PO Box 138
1200 Minnesota Ave S
Aitkin, MN 56431
Phone: (218) 927-7503
Internet: Aitkin Fisheries
E-Mail: Aitkin.Fisheries@state.mn.us

Lake maps can be obtained from:

Minnesota Bookstore
660 Olive Street
St. Paul, MN 55155
(651) 297-3000 or (800) 657-3757
To order, use C2070 for the map-id.


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

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