Fisheries Lake Survey

printer friendly version

Name: Medicine

Nearest Town: Plymouth
Primary County: Hennepin
Survey Date: 07/07/2014
Inventory Number: 27010400
Buy your walleye stamp todayPurchase a walleye stamp. Your voluntary contribution will be used to support walleye stocking.

Public Access Information

Ownership Type Description
Private Property Gravel
County Asphalt


Lake Characteristics

Lake Area (acres): 925.24
Littoral Area (acres): 399
Maximum Depth (ft): 49
Water Clarity (ft): 7.5 (5-13)

Dominant Bottom Substrate: N/A
Abundance of Aquatic Plants: N/A
Maximum Depth of Plant Growth (ft): N/A


Did you know? Fishing piers are installed on lakes to provide opportunities for shore fishing.

Fish Sampled for the 2014 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Crappie Trap net 1.30 1.8 - 21.2 0.23 0.2 - 0.3
Gill net 15.33 2.5 - 16.5 0.21 0.1 - 0.3
Bluegill Trap net 37.40 7.5 - 62.5 0.27 0.1 - 0.3
Gill net 15.33 N/A 0.33 N/A
Bowfin (dogfish) Trap net 1.70 0.4 - 1.3 4.01 2.3 - 4.1
Brown Bullhead Trap net 2.10 0.2 - 1.4 1.43 0.5 - 1.0
Gill net 4.44 0.4 - 2.0 1.31 0.5 - 1.0
Common Carp Trap net 0.40 0.4 - 2.0 7.24 2.6 - 6.0
Gill net 0.11 0.3 - 3.0 3.91 1.9 - 5.2
Golden Shiner Trap net 0.10 0.2 - 0.8 ND 0.1 - 0.1
Hybrid Sunfish Trap net 1.40 N/A 0.34 N/A
Northern Pike Trap net 0.10 N/A 1.74 N/A
Gill net 10.33 1.5 - 7.3 4.03 2.0 - 3.5
Pumpkinseed Trap net 2.20 0.7 - 4.2 0.27 0.1 - 0.2
Walleye Trap net 0.30 0.3 - 1.2 2.30 0.8 - 2.8
Gill net 3.33 1.2 - 6.3 3.43 1.2 - 2.7
White Sucker Gill net 0.89 0.4 - 2.2 2.63 1.5 - 2.4
Yellow Bullhead Trap net 4.70 0.9 - 5.7 0.83 0.5 - 0.8
Gill net 8.56 0.5 - 7.5 0.85 0.5 - 0.8
Yellow Perch Trap net 0.10 0.3 - 1.7 0.23 0.1 - 0.2
Gill net 2.56 2.0 - 27.9 0.17 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 2014 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 crappie 33 107 3 0 0 0 0 0 143
bluegill 47 458 0 0 0 0 0 0 505
bowfin (dogfish) 1 0 0 0 0 13 3 0 17
brown bullhead 0 0 5 53 3 0 0 0 61
common carp 0 0 0 0 2 1 1 1 5
golden shiner 0 0 0 0 0 0 0 0 0
hybrid sunfish 0 14 0 0 0 0 0 0 14
northern pike 0 0 0 2 8 35 29 17 91
pumpkinseed 4 18 0 0 0 0 0 0 22
walleye 0 2 0 1 11 9 9 0 32
white sucker 0 0 0 0 7 1 0 0 8
yellow bullhead 0 6 77 41 0 0 0 0 124
yellow perch 9 12 0 0 0 0 0 0 21


For the record, the largest Hybrid Sunfish taken in Minnesota weighed 1 lb., 12 oz. and was caught:

    Where: Middle Branch of the Zumbro River, Olmsted County
    When: 7/9/94
    Statistics: 11.5" length, 12" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2013 Walleye fingerlings 20,659 832.0
2011 Walleye 59,570 62.2
2009 Walleye 7,002 4.7
  Walleye 21,938 18.1
2007 Walleye fingerlings 6,888 490.0
2005 Walleye fingerlings 22,070 797.6

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
MEDICINE
Hennepin Co., 27010400
Bluegill Sunfish   All sizes     Mercury
Bullhead   All sizes     Mercury
Carp   All sizes     Mercury
Crappie   All sizes     Mercury
Largemouth Bass   All sizes     PFOS
Northern Pike     All sizes   Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
MEDICINE
Hennepin Co., 27010400
Bluegill Sunfish All sizes        
Bullhead All sizes        
Carp All sizes        
Crappie All sizes        
Largemouth Bass   All sizes     PFOS
Northern Pike   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 07/07/2014)

Medicine Lake is an 886-acre Class 24 lake, surrounded by the cities of Plymouth and Medicine Lake. Clifton E. French Regional Park (a Three Rivers Parks District) borders the northwest portion of the lake and provides the only public boat launch during the open-water season. As with other parks in this regional system, a fee is required to park boat trailer-vehicle combinations. Harty's Boatworks, located on the east side of the lake, rents boats and provides drive-on wintertime access. Two Plymouth city parks provide year-round, carry-in access.

Since 1999, Walleye have been stocked every other year; following a 10-year research study where varying sizes and densities of young Walleye were stocked, a biennial fingerling stocking plan resumed in 2013. In 2014, a summer population assessment and fall electrofishing were conducted to determine the composition and abundance of game fish present.

Summer gill netting revealed a population of abundant Northern Pike; the fish also displayed quality size. The catch rate from the summer gill nets, 10.3 fish per net, exceeded the 75th percentile for this Lake Class. The average size of Northern Pike sampled was 25.4 inches and 3.90 pounds; eighty-one percent of the gill netted fish exceeded 21 inches and 29% exceeded 28 inches. The largest fish measured 35.8 inches. Northern Pike grew at an average rate in Medicine Lake; they reached an average length of 25.0 inches by age 5 and 27.5 inches by age 7.

Walleye were sampled at above-average levels in 2014. The catch rate of 3.3 per gill net exceeds the lake-type median. Fish also tended to be large; ninety-seven percent exceeded 15 inches, and 59% exceeded 20 inches. The average size of Walleye was 21.1 inches and 3.32 pounds. The largest fish was 28.0 inches.

During fall 2014, an electrofishing survey was conducted to assess the Largemouth Bass population. Ninety-five bass were caught during 1.5 hours of electrofishing (63.3 fish per hour of active sampling). Twenty-six percent of the sampled fish exceeded 12 inches, and 5% exceeded 16 inches. The largest fish was 17.7 inches. Consistent recruitment was evidenced by fish ages 1 through 10 appearing in the sample. Largemouth Bass grew at an average rate in Medicine Lake, reaching average lengths of 12.9 inches by age 4, 14.4 inches by age 8 and 16.3 inches by age 9.

Bluegill abundance was higher than statewide Lake-Class average in 2014, and the fish were of quality size. The catch rate of 37.4 fish per trap net was between the median and 75th percentile for this lake. Fifty-eight percent of the sampled fish exceeded 7 inches, and the largest fish measured was 8.4 inches. Bluegill grew fast in Medicine Lake, reaching an average length of 7.6 inches by age 5.

Black Crappie were abundant in 2014, and their size was average. The catch rate, 15.3 fish per gill net, is just below the 75th percentile for this type of lake. The average size of fish was 6.9 inches and 0.20 pounds. Twenty-eight percent of the Crappie exceeded 8 inches; only 2% exceeded 9 inches.

The 2014 survey revealed notable numbers of Yellow and Brown Bullheads. Brown Bullhead were caught at a rate of 2.1 per trap net, exceeding the 75th percentile for this lake type. Yellow Bullhead were caught at a rate of 4.7 fish per trap net, between the median and 75th percentile for Lake Class 24. Both species of Bullhead were of quality size; the average size of Brown Bullhead was 13.6 inches and 1.43 pounds, while the average size of Yellow Bullhead was 11.3 inches and 0.83 pounds. Ninety percent of Brown Bullheads and 32% of Yellow Bullheads exceeded 12 inches. The largest Brown Bullhead sampled was 15.3 inches, and the largest Yellow Bullhead was 13.7 inches.

Other species caught in low abundances included Bowfin, Common Carp, Hybrid Sunfish, Pumpkinseed, Yellow Perch, and White Sucker.


For more information on this lake, contact:

Area Fisheries Supervisor
7050 E Hwy 101, Suite 100
Shakopee, MN 55379
Phone: (952) 496-4141
Internet: West Metro Fisheries
E-Mail: MetroWest.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 B0310 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

Tip Logo    Turn in Poachers (TIP):

    Toll-free: (800) 652-9093