Fisheries Lake Survey

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Name: Harriet

Nearest Town: Minneapolis
Primary County: Hennepin
Survey Date: 07/13/2009
Inventory Number: 27001600
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Public Access Information

Ownership Type Description
City Concrete


Lake Characteristics

Lake Area (acres): 341.22
Littoral Area (acres): 85
Maximum Depth (ft): 87
Water Clarity (ft): 6.75

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


Did you know? Lake rehabilitation projects reclaim waters suffering from habitat degradation and overpopulation of some fish species.

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 0.11 0.7 - 25.7 1.01 0.3 - 0.6
Black Crappie Trap net 0.22 1.8 - 21.2 0.20 0.2 - 0.3
Gill net 4.33 2.5 - 16.5 0.16 0.1 - 0.3
Bluegill Trap net 260.89 7.5 - 62.5 0.13 0.1 - 0.3
Gill net 62.33 N/A 0.13 N/A
Common Carp Trap net 0.22 0.4 - 2.0 9.01 2.6 - 6.0
Golden Shiner Trap net 0.11 0.2 - 0.8 0.09 0.1 - 0.1
Green Sunfish Trap net 0.33 0.2 - 1.3 0.05 0.1 - 0.2
Gill net 0.78 0.2 - 0.5 0.05 N/A
Hybrid Sunfish Trap net 2.22 N/A 0.16 N/A
Gill net 0.89 N/A 0.07 N/A
Largemouth Bass Trap net 0.11 0.2 - 0.7 0.67 0.2 - 0.9
Gill net 0.22 0.3 - 0.8 1.01 0.4 - 1.0
Muskellunge Trap net 0.11 0.4 - 0.5 15.04 1.5 - 7.0
Gill net 0.22 0.2 - 1.0 13.14 1.9 - 4.0
Northern Pike Trap net 0.11 N/A 8.61 N/A
Gill net 1.44 1.5 - 7.3 5.86 2.0 - 3.5
Pumpkinseed Trap net 3.33 0.7 - 4.2 0.11 0.1 - 0.2
Gill net 2.67 N/A 0.05 N/A
Walleye Trap net 0.33 0.3 - 1.2 0.67 0.8 - 2.8
Gill net 1.56 1.2 - 6.3 1.30 1.2 - 2.7
White Sucker Gill net 0.22 0.4 - 2.2 0.64 1.5 - 2.4
Yellow Perch Trap net 0.22 0.3 - 1.7 0.16 0.1 - 0.2
Gill net 11.22 2.0 - 27.9 0.12 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 0 1 0 0 0 0 1
black crappie 13 28 0 0 0 0 0 0 41
bluegill 2003 899 0 0 0 0 0 0 2909
common carp 0 0 0 0 0 0 2 0 2
golden shiner 0 1 0 0 0 0 0 0 1
green sunfish 10 0 0 0 0 0 0 0 10
hybrid sunfish 19 9 0 0 0 0 0 0 28
largemouth bass 0 0 2 1 0 0 0 0 3
muskellunge 0 0 0 0 0 0 0 3 3
northern pike 0 0 0 0 0 2 6 6 14
pumpkinseed 53 1 0 0 0 0 0 0 54
walleye 0 0 1 10 5 1 0 0 17
white sucker 0 0 1 1 0 0 0 0 2
yellow perch 26 72 0 0 0 0 0 0 103


For the record, the largest Greater Redhorse taken in Minnesota weighed 12 lbs., 11.5 oz. and was caught:

    Where: Sauk River, Stearns County
    When: 5/20/05
    Statistics: 28.5" length, 18.5" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2013 Walleye fingerlings 2,890 116.0
2012 Muskellunge fingerlings 175 35.0
  Walleye yearlings 2,520 120.0
2011 Walleye fingerlings 3,244 115.9
2010 Muskellunge fingerlings 179 29.8
  Walleye fingerlings 2,862 106.0
2009 Walleye fingerlings 2,482 82.6
  Walleye yearlings 110 22.0
2008 Muskellunge1 fingerlings 175 38.9
  Walleye fingerlings 3,234 64.0
  Walleye adults 39 117.0
2007 Walleye yearlings 265 160.0
  Walleye yearlings 158 51.0
  Walleye fingerlings 50 5.0
  Walleye adults 136 170.0
2006 Muskellunge1 fingerlings 175 43.5
  Walleye fingerlings 1,919 60.0
  Walleye adults 33 55.0
2005 Walleye yearlings 140 92.0
2004 Muskellunge1 fingerlings 175 27.0
  Walleye fingerlings 3,447 107.0

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
HARRIET
Hennepin Co., 27001600
Bluegill Sunfish   All sizes     Mercury PFOS
Carp   All sizes     Mercury
Crappie     All sizes   Mercury PFOS
Largemouth Bass     All sizes   Mercury PFOS
Northern Pike     All sizes   Mercury PFOS
Walleye     All sizes   Mercury PFOS
White Sucker   All sizes     Mercury
Yellow Perch   All sizes     Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
HARRIET
Hennepin Co., 27001600
Bluegill Sunfish   All sizes     PFOS
Carp All sizes        
Crappie   All sizes     Mercury PFOS
Largemouth Bass   All sizes     Mercury PFOS
Northern Pike     All sizes   Mercury PFOS
Walleye     All sizes   Mercury PFOS
White Sucker All sizes        
Yellow Perch   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 07/13/2009)

Harriet is a 335-acre lake located in south Minneapolis that is primarily managed as a muskellunge and walleye fishery. A boat launch operated by the Minneapolis Park and Recreation Board is located on the northwest corner of the lake, additionally, there are two fishing piers and ample shore fishing opportunities as the lake is encircled by a bike path. No permits are needed to use watercraft on Lake Harriet, however only electric boat motors are permitted. A population assessment was conducted during July 2009 to determine the species composition and abundance of game fish in the lake.

Lake Harriet is stocked with walleye fingerlings, yearlings, adults or a combination every year; despite this, walleye relative abundance was moderately low (1.6/gill net) compared with other similar lakes in the state. Over the previous 4 assessments walleye catch has averaged 1.8/net. In the 2009 assessment, 14 walleye were sampled averaging 14.9 inches and 1.3 lbs, and of those 6 (43%) were 15 inches or greater, and 1 (7%) was 20 inches or greater. The largest was 21.1 inches and 3.1 lbs. However, larger walleye are present in Lake Harriet. In a spring trap net assessment, 122 walleye (2.1/net) were sampled with 52% measuring 15 inches or longer, 18% at 20 inches or longer, and 7% at 25 inches or longer.

Summer netting conducted during standard population assessments does not index muskellunge population abundance accurately. Consequently, during the July evaluation, only 3 muskellunge were sampled at 36.6, 38.0, and 39.6 inches. A spring trap-netting assessment targeting adult muskellunge was conducted in 2009. This survey produced 20 muskellunge averaging 40.4 inches and 15.4 lbs. Seventy percent were 38 inches or longer and 35% were 42 inches or longer. The largest measured 48.4 inches and 27.6 lbs. The adult muskellunge population was estimated at 0.33 fish/acre (110 total fish).

Northern pike relative abundance was low (1.4/gill net) and this has previously been the case in Lake Harriet (averaging 1.1/net over the past 5 assessments). Conversely, mean size of northern pike was relatively high at 28.0 inches and 5.86 lbs. Thirteen pike were sampled, 12 (92%) were 21 inches or longer and 5 (38%) were 28 inches or longer. The largest measured was 35.7 inches and 13.23 lbs. Growth was slower than average for the first two years, then increased to average compared with other similar lakes in the West Metro Area. Northern pike averaged 19.5 inches in length by age 3.

Lake Harriet has a history of high bluegill abundance with catches averaging 183.0/trap net over the previous 5 assessments. In 2009, trap net catch was 260.9/net. Mean size of bluegill in this stunted population was 5.7 inches and 0.14 pounds. Thirty-eight percent were 6 inches or longer, and the longest measured 7.1 inches. Growth was slower than average compared with other similar lakes in the West Metro Area. Bluegill averaged 4.2 inches in length by age 3.

Black crappie abundance has decreased over the previous three assessments. Both gill net (4.3/net) and trap net (0.2/net) catch are the lowest on record since 1984 and 1991, respectively. Mean size of black crappie (from both gears) was 6.7 inches and 0.16 lbs. Thirty-one percent were 8 inches or longer and the largest measured 8.7 inches and 0.29 pounds. Growth was average compared with other similar lakes in the West Metro Area. Black crappie averaged 6.5 inches in length by age 3.

Yellow perch were moderately abundant (11.2/gill net) in Lake Harriet, however, mean size was small at 6.4 inches and 0.12 pounds. Seven percent were 8 inches or longer and the largest measured 8.8 inches and 0.26 lbs. Growth was slow compared with similar lakes in the West Metro Area. Yellow perch averaged 5.4 inches in length by age 3.

Two largemouth bass were sampled (10.1 and 14.7 inches), however, passive sampling gears, such as trap nets and gill nets, are not effective methods for collecting largemouth bass. For this reason, a spring boat electrofishing assessment was conducted in May, 2009. Twenty-three largemouth bass were collected at a rate of 12.2/hour. Average size was 14.6 inches and 1.85 lbs. Eighty-seven percent were 12 inches or longer and 39% were 15 inches or longer. The largest measured was 20.7 inches and 5.49 pounds.

Other species sampled in low abundance were green sunfish, pumpkinseed, white sucker, common carp, black bullhead, and golden shiner.


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 C0964 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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