Fisheries Lake Survey

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Name: Bush

Nearest Town: Bloomington
Primary County: Hennepin
Survey Date: 06/10/2013
Inventory Number: 27004700

Public Access Information

Ownership Type Description
City Concrete


Fishing Regulations:

Special and/or Experimental Fishing Regulations exist on this lake. Please refer to our online Minnesota Fishing Regulations.

Lake Characteristics

Lake Area (acres): 185.93
Littoral Area (acres): 109.7
Maximum Depth (ft): 28
Water Clarity (ft): 11.7 (8-16)

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


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 2013 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Bullhead Trap net 0.12 1.3 - 26.0 0.86 0.2 - 0.5
Gill net 0.50 5.2 - 56.2 1.15 0.2 - 0.5
Black Crappie Trap net 1.62 1.8 - 18.1 0.31 0.2 - 0.3
Gill net 2.00 1.9 - 18.0 0.20 0.1 - 0.3
Bluegill Trap net 18.75 6.5 - 59.6 0.07 0.1 - 0.2
Gill net 2.50 N/A 0.10 N/A
Hybrid Sunfish Trap net 2.25 N/A 0.30 N/A
Gill net 0.17 N/A 0.34 N/A
Largemouth Bass Trap net 0.12 0.3 - 0.8 0.11 0.2 - 1.1
Northern Pike Trap net 0.38 N/A 1.67 N/A
Gill net 15.83 2.5 - 7.9 1.79 1.8 - 3.3
Pumpkinseed Trap net 4.12 0.8 - 5.3 0.13 0.1 - 0.2
Gill net 2.83 N/A 0.06 N/A
Tiger Muskellunge Trap net 0.12 N/A 13.23 N/A
Walleye Gill net 0.17 0.5 - 3.5 3.53 1.1 - 3.0
White Sucker Trap net 0.25 0.3 - 1.6 2.33 1.0 - 2.2
Gill net 0.17 0.5 - 2.0 0.63 1.0 - 2.2
Yellow Bullhead Trap net 5.62 0.8 - 5.0 0.99 0.4 - 0.7
Gill net 1.00 1.0 - 6.9 0.73 0.4 - 0.7
Yellow Perch Trap net 0.12 0.3 - 1.5 0.04 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 2013 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 1 1 2 0 0 0 0 4
black crappie 1 17 7 0 0 0 0 0 25
bluegill 145 18 0 0 0 0 0 0 165
hybrid sunfish 1 18 0 0 0 0 0 0 19
largemouth bass 0 1 0 0 0 0 0 0 1
northern pike 0 0 0 3 52 35 8 0 98
pumpkinseed 44 6 0 0 0 0 0 0 50
tiger muskellunge 0 0 0 0 0 0 0 1 1
walleye 0 0 0 0 0 1 0 0 1
white sucker 0 0 1 0 2 0 0 0 3
yellow bullhead 0 2 31 18 0 0 0 0 51
yellow perch 0 1 0 0 0 0 0 0 1


For the record, the largest River Redhorse taken in Minnesota weighed 12 lbs., 10 oz. and was caught:

    Where: Kettle River, Pine County
    When: 5/20/05
    Statistics: 28.38" length, 20" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2006 Tiger Muskellunge1 fingerlings 165 61.8

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
BUSH
Hennepin Co., 27004700
Bluegill Sunfish   All sizes     Mercury
Bullhead     All sizes   Mercury
Crappie   All sizes     Mercury
Largemouth Bass     All sizes   Mercury
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
BUSH
Hennepin Co., 27004700
Bluegill Sunfish   All sizes     Mercury
Bullhead   All sizes     Mercury
Crappie   All sizes     Mercury
Largemouth Bass   All sizes     Mercury
Northern Pike   shorter than 24" 24" or longer   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 06/10/2013)

Bush is a 188-acre lake located in Bloomington. The majority of the lakeshore is part of the city-owned Bush Lake Park. A public boat launch is on the southwest shore, but City surface use restrictions allow only up to a 6-horsepower maximum for motors. The speed limit is 8 mph during the day and 5 mph at night.

Bush Lake has a maximum depth of 28 ft and good water clarity (11 ft in early June). A standard population assessment--consisting of gill nets and trap nets--was conducted in 2013 to characterize the game fish community. Additionally, night electrofishing for Largemouth Bass was conducted in June.

Bluegill were the most abundantly sampled species in the spring trap nets. Catch (18.8/net) was near average (24.6/net) when compared to other similar lakes in the state, although the size structure was small. Fifty-six percent of the Bluegill were between 3.5 and 4.5 inches. Size ranged from 3.2-8.1 inches, averaging 4.5 inches and 0.1 lbs. Historically, Bluegill have been small in Bush Lake, averaging 0.1 lbs over the previous 4 assessments (dating to 1990). Growth was comparable to other similar lakes in the West Metro Fisheries Area. Bluegill were 4.1 inches by age 3 and 5.7 inches by age 6.

Black Crappie were low in abundance in both spring trap nets (1.6/net) and summer gill nets (2.0/net). This low catch was similar to the typically low values found previously. In trap nets, size ranged from 4.7 to 10.0 inches, averaging 8.5 inches and 0.3 lbs. The moderately high average size of these crappie can be attributed to the older ages they are able to attain. The largest Black Crappie were between 8 and 10 years old. Growth was slow. They were 7.7 inches by age 5 and 9.0 inches by age 8.

Catch rates for Northern Pike were high--15.8/gill net--and size structure was fairly well-balanced. Despite a healthy mix of small and larger fish, half were between 16 and 20 inches. Size ranged from 14.5-27.2 inches. Pike averaged 20.0 inches and 1.8 lbs, which is relatively small compared to other similar lakes. The 2013 survey appeared to mark an end to a declining northern pike population. Numbers had been declining for 4 consecutive surveys until this sampling. During these past 4 assessments gill net catch had averaged 9.0/net. Growth was slower than average compared to other similar lakes. Pike were 16.4 inches by age 3 and 22.8 by age 6.

Hybrid (Tiger) Muskellunge management first began with stocking in 1984; however the most recent stocking was in 2006. No natural reproduction occurs. One Hybrid Muskellunge was sampled in 2013. That fish was 38.2 inches and 13.2 lbs. Since their introduction, abundance of Hybrid Muskellunge in sampling gear has been low (0.2/ trap net, 0.4/gill net) and a quality population has not become established, particularly with the stabilization and recent increase of native Northern Pike.

Walleye are not stocked into Bush Lake. Despite this, one Walleye (21.2 inches, 3.5 lb) was found in a gill net. It is not known how the Walleye got into the lake and there is not expected to be a significant population present.

Other species sampled were Black Bullhead, hybrid sunfish, Pumpkinseed, White Sucker, Yellow Bullhead, and Yellow Perch.

A night electrofishing assessment targeting Largemouth Bass was conducted in the spring. Seventy-two bass were sampled at a rate of 42/hour. Relative abundance (42/hour) was average when compared to other West Metro lakes electrofished at night over the past two years (5 lakes, average= 45.8/hr, range = 18.6  102.3/hr). Size ranged from 5.1-18.8 inches, averaging 11.6 inches and 0.9 lbs. The size structure was somewhat balanced with 58% of bass between 8 and 12 inches, 22% between 12 and 15 inches, and 15% longer than 15 inches. Growth was average through age 3, then older (age 4+) fish grew slower compared to other similar lakes. Ages were relatively evenly distributed from 2 through 8; the oldest was age 10. The strongest year class was 2009, which produced 28% of the bass.


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 C0431 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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