Fisheries Lake Survey

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Name: Byllesby

Nearest Town: Cannon Falls
Primary County: Dakota
Survey Date: 06/23/2011
Inventory Number: 19000600
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Public Access Information

Ownership Type Description
County Concrete
County Concrete
County Concrete


Lake Characteristics

Lake Area (acres): 1368.47
Littoral Area (acres): 976
Maximum Depth (ft): 50
Water Clarity (ft): N/A

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


Did you know? Each year, DNR fisheries personnel stock game fish fry and fingerlings in lakes lacking habitat for natural reproduction.

Fish Sampled for the 2011 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

No fish were collected.
[survey_length]
Length of Selected Species (Trapnet, Gillnet) Sampled for the 2011 Survey Year
No fish were collected.
Normal Ranges represent typical catches for lakes with similar physical and chemical characteristics.


Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2013 Walleye fingerlings 30,000 1,000.0
2010 Walleye fingerlings 16,040 1,000.0
2008 Walleye* fingerlings 28,269 1,000.0
2006 Walleye* fingerlings 4,446 346.0
  Walleye fingerlings 2,418 276.0
2004 Walleye* fingerlings 17,996 999.8

Privately Stocked Fish
* indicates privately stocked fish. Private stocking includes fish purchased by the DNR for stocking and fish purchased and stocked by private citizens and sporting groups.

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
BYLLESBY
Dakota Co., 19000600
Bluegill Sunfish All sizes        
Carp   All sizes     Mercury
Channel Catfish   All sizes     Mercury
Crappie   All sizes     Mercury
Northern Pike   All sizes     Mercury
River Carpsucker   All sizes     Mercury
Smallmouth Bass All sizes        
Walleye   All sizes     Mercury
White Bass   All sizes     Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
BYLLESBY
Dakota Co., 19000600
Bluegill Sunfish All sizes        
Carp All sizes        
Channel Catfish   All sizes     Mercury
Crappie All sizes        
River Carpsucker All sizes        
Smallmouth Bass All sizes        
Walleye   All sizes     Mercury
White Bass   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 06/23/2011)

Nightime electrofishing was conducted on Lake Byllesby on October 26, 2011 to assess walleye reproduction and help evaluate walleye stocking. Lake Byllesby is stocked with 1000 pounds of walleye fingerlings in even numbered years. No stocking occurred in 2011. Smallmouth and largemouth bass were also collected during the assessment. Three stations were sampled and included a variety of habitat types. Water temperature was 51 degrees F.

A total of forty-one walleye were collected for a catch rate of 43.9 per hour of on-time. The walleye catch rate in 2010 was 80.0 per hour. Scale samples were taken from a subsample of 17 walleye for age determination. Of those, 12 were age-0 fish and the result of natural reproduction either in Lake Byllesby or upstream in the Cannon River. The catch rate of age-0 walleye was 12.9 per hour. The catch rate of age-0 walleye in 2010 was 47.6 per hour. The age-0 walleye ranged in length from 6.2 to 8.6 inches and mean length was 7.1 inches. Natural reproduction has been documented in several previous assessments.

Forty largemouth bass were also collected, for a catch rate of 42.9 per hour of on-time. This is similar to the 2010 catch rate of 37.2 per hour. Largemouth collected in 2011 ranged in length from 6.5 to 13.7 inches and mean length was 10.4 inches. Four smallmouth bass were collected for a catch rate of 4.3 per hour. This is also similar to the 2010 assessment when 5 smallmouth bass were collected for a catch rate of 4.8 per hour. Smallmouth bass collected in 2011 ranged in length from 11.5 to 15.9 inches and mean length was 13.2 inches.


For more information on this lake, contact:

Area Fisheries Supervisor
1801 South Oak St
Lake City, MN 55041
Phone: (651) 345-3365
Internet: Lake City Fisheries
E-Mail: LakeCity.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 B0116 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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