Fisheries Lake Survey

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Name: Bean

Nearest Town: Storden
Primary County: Cottonwood
Survey Date: 08/18/2008
Inventory Number: 17005400
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Public Access Information

Ownership Type Description
DNR Concrete

Lake Characteristics

Lake Area (acres): 162.09
Littoral Area (acres): 141
Maximum Depth (ft): 12
Water Clarity (ft): 1.2

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

Did you know? Fisheries personnel monitor and regulate aquaculture, fishing tournaments, commercial fishing operations, aquatic plant management, and aeration.

Fish Sampled for the 2008 Survey Year


Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)


Normal Range

Black Bullhead Trap net 126.67 11.5 - 132.6 0.38 0.2 - 0.4
Gill net 61.67 30.3 - 150.6 0.39 0.2 - 0.4
Black Crappie Trap net 4.33 1.2 - 20.5 0.44 0.2 - 0.5
Gill net 8.33 1.4 - 13.8 0.15 0.2 - 0.4
Common Carp Trap net 1.00 1.0 - 5.5 2.26 1.4 - 4.6
Gill net 1.33 1.0 - 13.8 2.27 0.8 - 3.7
Northern Pike Trap net 0.44 N/A 2.62 N/A
Pumpkinseed Trap net 0.11 0.3 - 4.9 ND 0.1 - 0.2
Walleye Trap net 0.89 0.5 - 3.0 3.60 0.8 - 2.3
Gill net 25.33 2.3 - 18.1 1.76 1.0 - 2.3
Yellow Bullhead Trap net 0.33 0.5 - 2.5 1.11 0.3 - 0.7
Yellow Perch Trap net 1.00 0.3 - 3.8 0.31 0.1 - 0.3
Gill net 0.67 2.7 - 25.0 0.29 0.1 - 0.3
Normal Ranges represent typical catches for lakes with similar physical and chemical characteristics.

Length of Selected Species (Trapnet, Gillnet) Sampled for the 2008 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 4 301 1013 0 0 0 0 0 1325
black crappie 24 23 9 1 0 0 0 0 64
common carp 0 0 0 1 12 0 0 0 13
northern pike 0 0 0 0 0 3 1 0 4
pumpkinseed 0 0 0 0 0 0 0 0 1
walleye 0 0 0 3 74 5 1 0 84
yellow bullhead 0 0 2 1 0 0 0 0 3
yellow perch 0 5 5 0 0 0 0 0 11

For the record, the largest White Bass taken in Minnesota weighed 4 lbs., 2.4 oz. and was caught:

    Where: Mississippi River Pool 5, Wabasha County
    When: 5/4/2004

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2014 northern pike fingerlings 1,491 13.6
  walleye fingerlings 3,979 173.0
  walleye fry 162,138 1.3
  yellow perch adults 4,125 225.0
2010 Northern Pike fingerlings 1,469 6.4
2007 Northern Pike fingerlings 250 4.2
  Walleye1 fingerlings 1,430 143.0

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

No fish consumption guidelines are available for this lake. For more information, see the "Fish Consumption Advice" pages at the Minnesota Department of Health.

Status of the Fishery (as of 08/18/2008)

Bean Lake is a 141-acre lake with a maximum depth of 12 feet. A helixor type aeration system was installed in 1991 and no known significant winterkill has occurred since then. Bean has a watershed to lake ratio of nearly 60:1, which means significant agricultural drainage flows to the lake. Because a vast majority of the watershed is dominated by row cropping, the productivity of the lake is quite high. Bean Lake is managed primarily for northern pike and secondarily for yellow perch and black crappie. A population assessment was conducted during the week of August 18, 2008, which consisted of 3 gill net sets and 9 trap net nights.

The walleye population continues to dominate the fishery on Bean Lake. It is possible that the high walleye population is limiting the yellow perch and northern pike abundance and positively impacting the black bullhead abundance. The 2008 walleye catch rate in gill nets was 25.3 fish/gill net set, which was down from the 2002 survey of 45 fish/set. The catch rate is still higher than the expected range for Windom Area lakes. Total lengths of walleye sampled ranged from 13.5 to 23.8 inches and averaged 16.7 inches. Although the DNR does not stock walleye in Bean Lake, the local sportsmens club has purchased and been given permits to stock walleye fingerlings at least 2 times. Given the lakes size and lack of defined in-lake structure, it may be possible to spend a few successful hours angling for walleyes.

Based on the survey numbers, it would appear the northern pike population is below expectations. Only 4 northern pike were sampled in trap nets and 0 in gill nets during the 2008 survey. Historically, catch rates in trap nets have ranged from 0.4 (2008 and1998) to 2.3 (1994). Given the small sample size and the lengths of fish sampled, it is likely most of these fish are from the 2007 northern pike fingerling stocking. Total lengths ranged from 22.1 to 26.4 inches with a mean of 23.4 inches. Given the low yellow perch numbers, which is likely attributed to the high walleye abundance, it might be beneficial to cease northern pike fingerling stocking until the walleye abundance declines to a level where both species have adequate forage.

The yellow perch catch rate in gill nets was the lowest ever recorded during a survey on Bean Lake. A total of 8 yellow perch were sampled and therefore not much information can be obtained from this limited sample. The large walleye population may be limiting the yellow perch population and therefore stocking would not help their abundance. There are adequate numbers of yellow perch in the lake to keep a presence of yellow perch.

The black crappie catch rate has rebounded since the 2002 survey (0.38 fish/set). Total lengths ranged from 5.5 to 12.6 inches and averaged 8.4 inches. It would seem that black crappie is the panfish of choice when angling on Bean Lake.

The black bullhead catch rate in gill nets has never been lower as 61.7 fish/gill net was sampled. Historically the catch rates have ranged from 61.7 to 298.5 fish/set. The catch rate in 2008 was within the expected range (30.3 to 150.6 fish/set). The large walleye population abundance is likely keeping the bullhead abundance in check.

Common carp were first sampled in Bean Lake in 2008. The 13 fish had total lengths that ranged from 14 to 17 inches. It is unclear how these carp became established in the system as connections to other bodies of water are minimal. It is possible they could have come into the lake via anglers bait buckets.

Other species captured were pumpkinseed and yellow bullhead.

Efforts to improve the health of the lake should focus on best management practices within the watershed. Improvements and education in land stewardship will often have secondary benefits to the lake in the way of quality and quantity of habitat. Generally, improvements in the quality and quantity of lake habitat will mean direct improvements of the fishery.

Report by Ryan Doorenbos

For more information on this lake, contact:

Area Fisheries Supervisor
175 Co Rd 26
Windom, MN 56101-1868
Phone: (507) 831-2900
Internet: Windom Fisheries

Lake maps can be obtained from:

Minnesota Bookstore
660 Olive Street
St. Paul, MN 55155
(651) 297-3000 or (800) 657-3757
No depth map available.

For general DNR Information, contact:

DNR Information Center
500 Lafayette Road
St. Paul, MN 55155-4040
TDD: (651) 296-6157 or (888) MINNDNR

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