Fisheries Lake Survey

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Name: Green

Nearest Town: Spicer
Primary County: Kandiyohi
Survey Date: 08/04/2014
Inventory Number: 34007900
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Public Access Information

Ownership Type Description
Township Concrete Northwest access. The Couleur access is located off of Township Road#144.
DNR Concrete North access. Rush Brown access is located off of CR#30.
Township Concrete South access. Bible Camp access is off of CR#10.
Township Concrete East access. Wee access is located off of CR#95.
DNR Concrete Southwest access. The Saulsbury access is located within the city of Spicer net to Saulsbury Beach (Kandiyohi County Park #4).
DNR Concrete Northeast access.


Lake Characteristics

Lake Area (acres): 5560.65
Littoral Area (acres): 2035
Maximum Depth (ft): 110
Water Clarity (ft): 9.7 (5.5-15)

Dominant Bottom Substrate: N/A
Abundance of Aquatic Plants: N/A
Maximum Depth of Plant Growth (ft): 21.6 (0-40)


Did you know? There are 15,000 miles of fishable streams in Minnesota, including 2,600 miles of trout streams.

Fish Sampled for the 2014 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Bullhead Gill net 0.17 0.5 - 4.1 0.81 0.6 - 1.0
Black Crappie Trap net 2.13 0.3 - 1.7 0.43 0.3 - 0.6
Gill net 2.67 0.2 - 1.1 0.35 0.2 - 0.5
Bluegill Trap net 29.60 3.7 - 42.9 0.19 0.1 - 0.2
Gill net 8.83 N/A 0.09 N/A
Bowfin (dogfish) Trap net 0.53 0.3 - 1.1 4.75 3.9 - 5.1
Gill net 0.08 0.1 - 0.2 4.52 3.0 - 5.2
Green Sunfish Gill net 0.58 0.1 - 0.5 0.05 N/A
Hybrid Sunfish Trap net 1.27 N/A 0.29 N/A
Gill net 2.25 N/A 0.15 N/A
Largemouth Bass Trap net 0.47 0.4 - 1.4 0.87 0.3 - 0.7
Gill net 1.42 0.3 - 1.2 0.55 0.6 - 1.0
Northern Pike Trap net 0.40 N/A 3.39 N/A
Gill net 3.17 3.0 - 7.9 3.36 1.7 - 2.8
Pumpkinseed Trap net 0.53 1.6 - 6.9 0.34 0.1 - 0.3
Gill net 1.08 N/A 0.15 N/A
Rock Bass Trap net 1.33 0.7 - 3.3 0.36 0.2 - 0.5
Gill net 13.58 1.0 - 6.6 0.37 0.3 - 0.5
Smallmouth Bass Trap net 0.47 0.1 - 0.6 0.32 0.1 - 0.6
Gill net 0.67 0.2 - 0.9 0.92 0.9 - 1.8
Tullibee (cisco) Gill net 0.08 0.5 - 5.2 0.26 0.4 - 1.0
Walleye Trap net 0.93 0.3 - 0.9 1.86 1.0 - 2.2
Gill net 6.17 4.0 - 9.6 1.36 1.1 - 1.9
White Sucker Gill net 1.08 1.0 - 3.5 2.26 1.5 - 2.3
Yellow Bullhead Trap net 0.20 0.9 - 4.8 1.09 0.7 - 1.0
Gill net 2.42 0.6 - 6.4 0.98 0.6 - 0.9
Yellow Perch Gill net 2.92 7.1 - 33.9 0.10 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 2014 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 1 1 0 0 0 0 2
black crappie 10 34 19 1 0 0 0 0 64
bluegill 249 295 0 0 0 0 0 0 544
bowfin (dogfish) 0 0 0 0 0 7 2 0 9
green sunfish 7 0 0 0 0 0 0 0 7
hybrid sunfish 24 22 0 0 0 0 0 0 46
largemouth bass 3 10 6 3 2 0 0 0 24
northern pike 0 0 0 1 6 20 11 6 44
pumpkinseed 12 8 1 0 0 0 0 0 21
rock bass 42 102 39 0 0 0 0 0 183
smallmouth bass 6 3 1 2 3 0 0 0 15
tullibee (cisco) 0 1 0 0 0 0 0 0 1
walleye 0 4 8 34 31 10 1 0 88
white sucker 0 0 0 2 11 0 0 0 13
yellow bullhead 0 0 15 17 0 0 0 0 32
yellow perch 14 21 0 0 0 0 0 0 35


For the record, the largest Shortnose Gar taken in Minnesota weighed 4 lbs., 9.6 oz. and was caught:

    Where: Mississippi River, Hennepin County
    When: 7/22/84
    Statistics: 34.6" length, 10" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2014 walleye fingerlings 41,344 3,652.0
2013 Walleye fry 1,999,770 19.0
  Walleye fingerlings 91,716 3,208.0
2012 Walleye fry 377,075 3.6
  Walleye2 fingerlings 59,672 3,081.0
  Walleye fry 1,450,674 13.0
2011 Walleye fingerlings 66,577 3,081.0
  Walleye fry 2,357,895 22.6
2010 Walleye fingerlings 5,880 194.0
  Walleye fry 2,220,806 21.6
  Walleye yearlings 750 250.0
  Walleye fingerlings 16,358 814.5
  Walleye yearlings 90 3.0
  Walleye fingerlings 48,479 2,078.0
2009 Walleye fingerlings 23,130 931.0
  Walleye fingerlings 41,328 1,674.3
  Walleye fingerlings 9,625 476.0
  Walleye fry 2,110,771 19.2
  Walleye yearlings 12 6.0
2008 Walleye fingerlings 20,854 1,269.0
  Walleye fry 1,028,856 10.1
  Walleye yearlings 5,016 209.0
  Walleye fingerlings 30,787 1,836.0
2007 Walleye adults 4,270 2,281.0
  Walleye fingerlings 50,385 2,639.5
  Walleye fry 1,043,174 10.2
  Walleye yearlings 27,232 3,279.0
2006 Walleye fry 2,055,534 20.0
  Walleye fingerlings 25,446 1,217.0
  Walleye adults 313 128.0
  Walleye yearlings 550 158.0
2005 Walleye 666 2.4
  Walleye fry 3,761,275 35.3
  Walleye yearlings 799 420.0
  Walleye yearlings 11,064 3,013.0
  Walleye fingerlings 5,466 264.0
  Walleye adults 308 616.0
  Walleye adults 48 57.0

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
GREEN
Kandiyohi Co., 34007900
Bluegill Sunfish   All sizes     Mercury
Carp   All sizes     Mercury
Northern Pike   shorter than 17" 17" or longer   Mercury
Rock Bass   All sizes     Mercury
Walleye     All sizes   Mercury
White Sucker   All sizes     Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
GREEN
Kandiyohi Co., 34007900
Bluegill Sunfish All sizes        
Carp All sizes        
Northern Pike   shorter than 28" 28" or longer   Mercury
Rock Bass   All sizes     Mercury
Walleye   All sizes     Mercury
White Sucker 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 08/04/2014)

A resurvey of Green Lake was conducted during early August of 2014. Green is a large (5,561 acres), deep (110 feet maximum), highly developed (690 homes) and moderately productive lake located in Kandiyohi County. Green is a popular fishery for walleye, northern pike, smallmouth bass, black crappie (recent years) and bluegill. There are approximately 48 inlets that enter Green Lake. The Middle Fork Crow River is the largest inlet and enters Green along the north shore and exits along the east side eventually flowing into Calhoun Lake. Direct nutrient runoff into Green is primarily from highway runoff and residential sources, which include lake homes and the city of Spicer. There is also upstream agricultural row crop runoff into the Middle Fork Crow River. Water levels were high during June and July of 2014 from inlets due to rain events, but low by fall. A slow no-wake zone was put in place for lakes in Kandiyohi and Stearns Counties during June thru early July of 2014. High water levels caused some shoreline erosion in addition to many docks and boat lifts floating away from their moorings. Nutrient levels were relatively low during June of 2013 (total phosphorus=0.015 ppm, chlorophyll-a=6.3 ppb). Water clarity was poor (5.5 feet) for Green Lake on August 6, 2014. Water clarity ranged from 5.5-13.3 feet during bi-monthly sampling from June-August of 2014.

The threats of present (zebra mussels, Eurasian watermilfoil, and curly-leaf pondweed) and potential exotic invasive species introductions (i.e. quagga mussels, spiny water flea, faucet snail, etc.) are of a major concern to local residents in Kandiyohi County. Eurasian watermilfoil "EWM" was first documented in Green Lake at several isolated sites during 2000. Both DNR and private attempts to chemically eradicate EWM have been unsuccessful. Eurasian watermilfoil has spread throughout the lake in scattered stands especially near the Spicer public access, swimming beach, city dock, Indian Beach Lagoon, storm water inlet areas and off shore "break" (10-15 feet deep) areas since 2000. EWM and curly-leaf pondweed tend to thrive in disturbed areas (i.e. previous chemically or mechanically treated areas, storm water inlets) or during years of minimal snowfall and maximum light penetration when competition from native species is minimal.

One adult zebra mussel was found on a dock along the southeast shore of Green during the early summer of 2014. No additional zebra mussels were found until the fall of 2014. Numerous small young zebra mussels were found attached on docks and boat lifts scattered throughout Green Lake. Zebra mussel eradication techniques (e.g. potassium chloride "potash", zequanox, copper sulfate, etc.) have been recently tried in metro area lakes where populations have not spread throughout the lake. Zequanox is a combination of specific dead bacteria cells which are toxic to zebra mussels. Eradication of zebra mussels is improbable once mussels spread throughout a lake due to their ability to reproduce large numbers of young zebra mussel "veligers" by a small number of adults. Green Lake will continue to be monitored to document the impacts zebra mussels may have on the lake ecology (i.e. water clarity, substrate effects, aquatic vegetation, plankton abundance, native species responses, etc.).

Bluegill numbers were low in 2014 (29.60/trapnet) compared to the historical average of 46.16 fish/trapnet. The 2014 bluegill average size was moderate (0.18 pounds and 6.18 inches), but above the historical average weight of 0.13 pounds from trapnets. Abundant numbers of moderate sized (6.00 plus inches) bluegill (21.08 fish/trapnet) were captured in the 2014 trapnets. However, only low numbers of larger (8.00 plus inches) bluegill (1.00 fish/trapnet) were captured in 2014.

Black crappie numbers were abundant in 2014 (2.67 fish/gillnet, 2.13 fish/trapnet) compared to the historical averages of 1.25 fish/gillnet and 0.76 fish/trapnet. The 2014 black crappie average sizes were moderate from gillnets (0.35 pounds and 7.68 inches), but slightly larger from trapnets (0.43 pounds and 8.70 inches). The black crappie historical average lengths are 7.85 inches for both gillnets and trapnets. Black crappie growth rates are excellent for ages 2+ fish in Green. The 2012 and 2011 year classes combined comprised 70% of the black crappie captured in 2014 survey nets.

Northern pike numbers were moderately abundant in 2014 (3.17 fish/gillnet) compared to the historical average of 2.77 fish/gillnet. The 2014 northern pike average size was moderate (3.36 pounds and 24.10 inches) from gillnets. The northern pike historical average weight and length are 3.15 pounds and 23.37 inches from gillnets. The 2014 catch rate of larger (28.00 plus inches) northern pike (0.58 fish/gillnet) was moderate and similar to the historical average (0.43 fish/gillnet). The largest northern pike captured was 35.1 inches from a gillnet in 2014. Northern pike growth rates were low to moderate especially for ages 1-5, but better for ages 6+ fish. Northern pike captured have been notably lean in appearance during most recent surveys compared to fish captured in the assessments prior to 2003. Low numbers of forage fish (yellow perch and tullibee) have been documented in Green Lake assessments from 2003-2014. The 2011 year class comprised 30% of the 2014 northern pike catch.

Smallmouth bass numbers were low in 2014 (0.67 fish/gillnet) compared to the historical average of 1.88 fish/gillnet for Green Lake. The 2014 smallmouth bass average size was moderate (0.92 pounds and 11.38 inches), but smaller than the historical average size of 1.53 pounds and 13.28 inches from gillnets. Low numbers of larger (14.00 inch plus) smallmouth bass (0.33 fish/gillnet) were captured in 2014 gillnets. Smallmouth bass growth rates were poor.

Crayfish, an important smallmouth bass forage species, have been present in low numbers since 2002. Low numbers of crayfish were captured in 2014 (0.08 crayfish/gillnet. The crayfish historical average catch rate is 6.4 crayfish/gillnet for Green. Research has identified crayfish and pumpkinseed sunfish as predators of smaller zebra mussels. Crayfish numbers may increase in Green due a new species present "zebra mussel" which crayfish may readily prey upon. In response, this may also provide a greater forage base "crayfish" for smallmouth bass.

Tullibee "cisco" numbers were low in the 2014 summer (0.08 fish/gillnet) compared to the normal ranges for Green and similar lakes. The tullibee historical average summer catch rate is 2.16 fish/gillnet for Green Lake. The 2014 summer tullibee average size was small (0.26 pounds and 8.62 inches) from gillnets. The tullibee historical summer average weight is 0.60 pounds from gillnets.

Vertical gillnets were set for tullibee at three deepwater (60-105 feet deep) sites which included the north side adjacent to Hultgren's Bar (deepest part), southwest side and southeast side during late August of 2014. There were 153 tullibee captured in 15 vertical gillnets. Tullibee captured with this gear averaged 9.8 inches and ranged from 3.2 to 16.5 inches. Approximately 39% of the tullibee captured were likely young of year fish and 44% were probably ages 6+ to 8+ (2006-2009 year classes) based on historical growth data. The tullibee average depth at capture was 27.9 feet during late August. The thermocline in Green was set up at 49 feet over the deepest area of the lake (105 feet) and the temperature when dissolved oxygen dropped to 3.0 ppm was 72.5 F. Tullibee were sampled in waters from 3.3 to 32.8 feet deep. These waters ranged in temperatures from 60 to 75 F and dissolved oxygen concentrations of 0.07 to 7.95 ppm.

No fall tullibee sampling was conducted in 2014 due to early onset of ice conditions during the peak spawning time period. There were low numbers of tullibee (16.50 fish/gillnet) captured in the 2013 fall using specialized gillnets (200 feet length, 6 feet deep, 1.75 inch bar mesh) that target adult spawning tullibee. The 2013 fall tullibee average size was large (1.42 pounds and 14.61 inches) for Green. The 2008 year class comprised 88% of 2013 fall tullibee catch. Low numbers of tullibee (8.33 fish/gillnet, 13.61 inches average length) were also captured in the 2012 fall survey of Green Lake using standard graduated mesh lake survey nets. Low numbers of tullibee were also captured in nearby Lake Koronis in the 2014 summer (0.20 fish/gillnet, 8.74 inches average length) and fall (6.00 fish/gillnet, 15.95 inches average length) using standard lake survey gillnets.

Green Lake was not opened for public tullibee gillnetting in the 2013 or 2014 fall due to low numbers in recent surveys. The lack of adult tullibee on the spawning grounds from early November to early December of 2010-2013 as sampled by DNR or private netters during the open season is not a good indication for the long term sustainability of the tullibee population in Green Lake. Hopefully, cool summers will occur during the next several years, which may result in good hatches and survival of tullibee in Green Lake if adequate brood stock numbers are still present.

Yellow perch numbers were low in 2014 (2.92 fish/gillnet) compared to the historical average of 13.53 fish/gillnet. The 2014 yellow perch average size was small (0.10 pounds and 6.26 inches), but similar to the historical average size (0.12 pounds) from gillnets. Yellow perch growth rates were poor. Local anglers have reported seeing numerous small yellow perch (<6 inches) with cameras amongst the chara beds along the bottom during winter and summer. Intense predation by walleye, bass and northern pike on larger yellow perch may explain the low catches of moderate to larger perch in summer gillnets.

Walleye numbers were low in 2014 (6.17 fish/gillnet) compared to the historical average of 9.07 fish/gillnet, but near the median catch rate for similar lakes. The 2014 walleye average size was moderate (1.36 pounds and 15.21 inches) from gillnets. The walleye historical average weight and length are 1.27 pounds and 14.69 inches from gillnets. Low numbers of moderate sized (15.00 plus inches) walleye (2.83 fish/gillnet) were captured from gillnets in 2014. Walleye growth rates were poor for ages 1-8 compared to other Spicer Area lakes, but moderate for ages 3-6 compared to Green Lake historical growth data. The 2011 and 2012 year classes comprised about 35% and 14% respectively of the 2014 walleye gillnet and trapnet catch. Recent walleye year classes have been due mostly to stocking since 2001.

Green Lake had been stocked annually with walleye fry (1-4 million) from 2000-2013 except for 2002. No walleye fry were stocked in 2014 due to the cessation of egg take operations on Green Lake. Walleye fry stocked during previous years were part of a 10% return of walleye eggs taken for the statewide propagation program. Walleye fingerlings (41,344 fish, 3,652 pounds) were stocked into Green during 2014. Various combinations of walleye fingerlings, yearlings, or adults have been stocked annually (2,000-4,000 pounds/year) since 2000 into Green Lake.

A fall electrofishing assessment of Green Lake was conducted on October 7, 2014 to evaluate walleye natural reproduction in Green Lake. Low numbers of young of year "YOY" walleye were captured in the 2014 fall electrofishing survey (4.00 YOY/hour, 7.62 inches average length). Low numbers of YOY walleye (< 15 YOY/hour) were captured in previous surveys since 1996 with the exception of 2011. Moderate numbers of YOY walleye were captured in the 2011 fall electrofishing survey (31.00 YOY/hour, 6.46 inches average length). OTC marked YOY walleye (fry stocked) comprised 63.3% (19.62 YOY/hour) of the 2011 fall YOY walleye survey catch. The 2011 walleye year class was successful in many area lakes.

Rock bass numbers were abundant in 2014 (13.58 fish/gillnet) compared to the historical average of 8.23 fish/gillnet. The 2014 rock bass average size was moderate (0.37 pounds and 7.37 inches) and similar to the historical average size of 0.41 pounds from gillnets.

Largemouth bass numbers were abundant in 2014 (1.42 fish/gillnet) compared to the historical average of 0.76 fish/gillnet. The 2014 largemouth bass average size was small (0.55 pounds and 9.14 inches) from gillnets. The largemouth bass historical average weight is 0.69 pounds from gillnets. Largemouth bass growth rates were fair.

Other species captured included low numbers of white sucker (1.08 fish/gillnet), carp (0.00 fish/trapnet), pumpkinseed sunfish (0.53 fish/trapnet), hybrid sunfish (1.27 fish/trapnet) and black bullhead (0.17 fish/gillnet). Moderate numbers of large yellow bullhead were captured in 2014 (2.42 fish/gillnet, 0.98 pounds average weight).

Current fish management activities on Green Lake include monitoring the fish population on an annual basis, assisting aquatic plant management and enforcement personnel with invasive species monitoring and education, protecting native aquatic vegetation through the permit process, participating in local watershed initiatives to maintain or improve water quality, and stocking walleye to meet long-range goals. The Green Lake fishery will be sampled in the fall of 2015 for walleye natural reproduction, and summer of 2015 for all fish species by assessment nets.


For more information on this lake, contact:

Area Fisheries Supervisor
10590 Co Rd 8 NE
PO Box 457
Spicer, MN 56288
Phone: (320) 796-2161
Internet: Spicer Fisheries
E-Mail: Spicer.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 B0178 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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    Toll-free: (800) 652-9093