Fisheries Lake Survey

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Name: Tetonka

Nearest Town: Waterville
Primary County: Le Sueur
Survey Date: 07/20/2009
Inventory Number: 40003100
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Public Access Information

Ownership Type Description
City Asphalt Cannon River City Launch
DNR Asphalt DNR Public Access inside Antl Bay


Fish Health:

Disease:Viral Hemorrhagic Septicemia (VHS)Date Tested:3/15/2010Result:Negative
Source: MNDNR

Lake Characteristics

Lake Area (acres): 1357.77
Littoral Area (acres): 548
Maximum Depth (ft): 35
Water Clarity (ft): 8.5

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


Did you know? Much of Minnesota's fisheries program is reimbursed by the Federal Aid in Sport Fish Restoration Program (federal excise tax), administered by the U.S. Fish and Wildlife Service.

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 0.93 0.7 - 25.7 0.86 0.3 - 0.6
Gill net 1.73 2.5 - 45.0 0.93 0.3 - 0.7
Black Crappie Trap net 4.80 1.8 - 21.2 0.27 0.2 - 0.3
Gill net 3.07 2.5 - 16.5 0.44 0.1 - 0.3
Bluegill Trap net 27.80 7.5 - 62.5 0.17 0.1 - 0.3
Gill net 1.67 N/A 0.23 N/A
Bowfin (dogfish) Trap net 1.40 0.4 - 1.3 4.08 2.3 - 4.1
Gill net 0.20 0.2 - 0.8 6.22 2.4 - 4.2
Channel Catfish Trap net 0.07 N/A 2.65 N/A
Common Carp Trap net 1.13 0.4 - 2.0 3.30 2.6 - 6.0
Gill net 0.33 0.3 - 3.0 5.80 1.9 - 5.2
Freshwater Drum Trap net 5.87 0.5 - 4.2 1.44 0.4 - 1.2
Gill net 11.40 4.0 - 32.3 0.76 0.3 - 1.1
Hybrid Sunfish Trap net 0.13 N/A 0.12 N/A
Longnose Gar Gill net 0.07 N/A 1.31 N/A
Northern Pike Trap net 0.33 N/A 2.84 N/A
Gill net 3.20 1.5 - 7.3 4.82 2.0 - 3.5
Pumpkinseed Trap net 0.07 0.7 - 4.2 0.20 0.1 - 0.2
Quillback Gill net 0.13 N/A 1.39 N/A
Smallmouth Bass Gill net 0.07 0.2 - 2.3 2.20 0.9 - 1.5
Walleye Trap net 0.33 0.3 - 1.2 1.91 0.8 - 2.8
Gill net 2.40 1.2 - 6.3 3.01 1.2 - 2.7
White Bass Trap net 0.27 0.2 - 0.9 1.36 0.5 - 1.5
Gill net 2.20 0.3 - 3.8 1.22 N/A
White Sucker Trap net 0.07 0.2 - 1.0 3.66 1.6 - 2.8
Gill net 0.73 0.4 - 2.2 2.23 1.5 - 2.4
Yellow Bullhead Trap net 2.33 0.9 - 5.7 0.97 0.5 - 0.8
Gill net 0.27 0.5 - 7.5 1.21 0.5 - 0.8
Yellow Perch Trap net 0.73 0.3 - 1.7 0.27 0.1 - 0.2
Gill net 4.33 2.0 - 27.9 0.33 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 1 22 17 0 0 0 0 40
black crappie 36 42 38 0 0 0 0 0 118
bluegill 235 200 0 0 0 0 0 0 442
bowfin (dogfish) 0 0 0 0 4 16 4 0 24
channel catfish 0 0 0 0 0 1 0 0 1
common carp 0 0 0 3 10 8 1 0 22
freshwater drum 1 70 36 90 57 2 0 0 259
hybrid sunfish 2 0 0 0 0 0 0 0 2
longnose gar 0 0 0 0 0 0 1 0 1
northern pike 0 0 0 0 4 16 24 5 53
pumpkinseed 0 1 0 0 0 0 0 0 1
quillback 0 0 0 1 1 0 0 0 2
smallmouth bass 0 0 0 0 1 0 0 0 1
walleye 0 2 2 5 12 16 3 0 41
white bass 0 1 9 14 12 0 0 0 37
white sucker 0 0 0 2 8 2 0 0 12
yellow bullhead 0 5 16 16 2 0 0 0 39
yellow perch 3 42 28 0 0 0 0 0 76


For the record, the largest American Eel taken in Minnesota weighed 6 lbs., 9 oz. and was caught:

    Where: St. Croix River near Stillwater
    When: 8/8/97
    Statistics: 36" length, 14" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2013 Northern Pike fry 49,329 1.0
  Walleye fry 816,777 8.0
2012 Walleye fry 905,520 8.8
2011 Northern Pike fry 44,876 0.8
2010 Channel Catfish fingerlings 3,606 86.5
  Northern Pike fry 58,422 0.9
  Walleye fry 218,228 2.0
  Walleye fry 872,912 8.0
2009 Channel Catfish fingerlings 11,828 164.5
  Walleye fry 828,671 8.2
2008 Channel Catfish fingerlings 18,119 166.2
  Walleye fry 820,000 8.0
2007 Channel Catfish fingerlings 121,325 986.9
2006 Walleye fry 849,220 8.5
2005 Channel Catfish fingerlings 57,491 450.3
  Walleye fry 818,160 8.0
2004 Walleye fry 817,500 7.5

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
TETONKA
Le Sueur Co., 40003100
Bluegill Sunfish   All sizes     Mercury
Bullhead   All sizes     Mercury
Carp All sizes        
Crappie   All sizes     Mercury
Northern Pike     All sizes   Mercury
Walleye     All sizes   Mercury
White Bass     All sizes   Mercury
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
TETONKA
Le Sueur Co., 40003100
Bluegill Sunfish All sizes        
Bullhead All sizes        
Carp All sizes        
Crappie All sizes        
Northern Pike   All sizes     Mercury
Walleye   All sizes     Mercury
White Bass   All sizes     Mercury
White Sucker   All sizes     Mercury
Yellow Perch All sizes        

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 07/20/2009)

Tetonka Lake in Le Sueur County is a 1,336 acre lake located in the town of Waterville. The lake is accessible from two public water accesses. A city-owned access is open in Waterville off 1st street North on the Cannon River. The parking lot and access can be found from across town by driving towards the blue water tower. A second public access is found on the south side of the lake in Antl Bay, off Le Sueur County Road 14.

Tetonka Lake was surveyed the week of July 20th, 2009 to monitor the fish community and aquatic habitat. Water clarity was excellent; secchi depths measured 8.5 feet. It is possible the exceptional water clarity resulted in lowered net catches compared to historical catches.

Bluegill are a feature on Tetonka Lake and likely are the most targeted species by both summer and winter anglers. Bluegill averaged 28 fish per trap net, ranging in size from 3 to 9 inches in length. Average bluegill size was 5.6 inches.

Black crappie averaged 3.1 and 4.8 fish per net in gill net and trap net catches respectively. Average size for all gears was 7.8 inches. Size range was good, with fish ranging from 4.1 to 12.0 inches.

One channel catfish was caught during the survey. Channel catfish have a long stocking history in Tetonka Lake. Channel catfish are found throughout the Cannon River chain of lakes.

Northern pike averaged 3.2 fish per gill net lift. Pike ranged from 18 to 38 inches in length, with an average of 26 inches. Average weight was 4.4 pounds, which exceeded the upper quartile for lakes of Tetonka's classification (class 24).

Walleye maintain a low level of abundance on Tetonka Lake. Walleye averaged 2.4 fish per gill net lift. Walleye ranged from 9 to 27 inches in length and averaged 19 inches. Walleye fry are stocked 3 out of 4 years.

White bass averaged 2.2 fish per gill net lift. Size was good; white bass averaged 13 inches and one 18 inch fish was caught. White bass, while generally underutilized throughout the Cannon River chain of lakes, do provide a good fight to sport anglers and have firm white flesh.

Yellow perch averaged 4.3 fish per gill net lift. Perch averaged 8.6 inches in length, and ranged from 5.4 to 10.5 inches. Some large individuals can be found in the lake; Tetonka has historically had better yellow perch size distribution than other area lakes.

Largemouth bass were sampled in late May with a boom electroshocking boat. Only 14 fish per hour of run time were sampled. This sample may have not been representative because of cold weather. Tetonka is usually considered a good bass fishing lake; at one time it was the home of the Minnesota state record largemouth bass.

A small population of smallmouth bass exists in Tetonka Lake. Only one fish was sampled in the 2009 assessment in a gill net. Rocky point and some of the midlake rocky humps tend to hold a few smallmouth bass. Other fish observed in the survey include black bullhead, bowfin (dogfish), common carp, freshwater drum (sheephead), longnose gar, quillback sucker, white sucker, yellow bullhead, hybrid sunfish, and pumpkinseed sunfish.

A point-intercept or grid sampling survey of aquatic plants was conducted on July 27, 2009 according to the methodology of Perleberg 2006. This survey was conducted to continue quantify aquatic plant distribution to support the Lake Vegetation Management Plan. Figure 1 shows 545 potential sampling point locations, 100 meter grid spacing, in relation to water depth contours. Figure 2 shows 178 points that fell in the vegetated zone found to be in 10 feet of water or less and the number of rooted plant species found at those locations. Tetonka's aquatic plant community is only moderately diverse with 14 species or groups identified (Table 1). The distribution of rooted plants found at over 10% of vegetated zone sites are shown in Figures 3-8.

In 2009 a proposal to manage Tetonka for muskellunge as one of 5 new lakes statewide was drafted. Consistent with the Long Range Plan for Muskellunge and Northern Pike Management through 2020, the proposal is based on angler input, geographic distribution, fish community, physical size, and various biological and chemical criteria. The proposal is designed to provide an additional opportunity to muskie anglers, particularly in southern Minnesota where such a fishing opportunity is limited. The proposal is open to public comment in the Fall of 2010. Anyone interested in more information on the Tetonka Lake proposal or muskellunge are encouraged to visit http://www.dnr.state.mn.us/fish/muskellunge/muskiefaq.html or call the Waterville area fisheries office at the number below.

Anglers can help maintain or improve the quality of fishing by practicing selective harvest. Selective harvest allows for the harvest of smaller fish for table fare, but encourages release of medium- to large-sized fish. Releasing these fish can help maintain balance in the fish community in Tetonka Lake and provide anglers the opportunity to catch more and larger fish in the future.

Shoreline areas on the land and into the shallow water provide essential habitat for fish and wildlife that live in or near Minnesota's lakes. Overdeveloped shorelines cannot support the fish, wildlife, and clean water that are associated with natural undeveloped lakes. Shoreline habitat consists of aquatic plants, woody plants, and natural lake bottom soils.

Plants in the water and at the water's edge provide habitat, prevent erosion, and absorb excess nutrients. Shrubs, trees, and woody debris such as fallen trees or limbs provide good habitat both above and below the water and should be left in place. By leaving a buffer strip of natural vegetation along the shoreline, property owners can reduce erosion, help maintain water quality, and provide habitat and travel corridors for wildlife.

Reference: Perleberg D. 2006. Aquatic vegetation of German Lake, LeSueur County, Minnesota (DOW 40-0063-00), June 22, 2004. Minnesota Department of Natural Resources, Ecological Services Division, 1601 Minnesota Dr., Brainerd, MN 56401. 17 pp.


For more information on this lake, contact:

Area Fisheries Supervisor
PO Box 86
50317 Fish Hatchery Rd
Waterville, MN 56096-0086
Phone: (507) 362-4223
Internet: Waterville Fisheries
E-Mail: Waterville.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 B0201 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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