|Nearest Town: Spicer
Primary County: Kandiyohi
Survey Date: 07/29/2013
Inventory Number: 34007900
|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).|
|Did you know? Each year, the MinnAqua program teaches youth and families across Minnesota about aquatic biology, fishing, and conservation..|
|Species||Number of fish per net||
Average Fish Weight (lbs)
Normal Range (lbs)
|Black Bullhead||Trap net||0.14||0.3 - 2.1||1.56||0.4 - 0.8|
|Black Crappie||Trap net||1.07||0.3 - 1.7||0.52||0.3 - 0.6|
|Gill net||4.33||0.2 - 1.1||0.44||0.2 - 0.5|
|Bluegill||Trap net||33.00||3.7 - 42.9||0.17||0.1 - 0.2|
|Bowfin (dogfish)||Trap net||0.36||0.3 - 1.1||5.80||3.9 - 5.1|
|Common Carp||Trap net||0.14||0.2 - 1.0||4.16||3.5 - 7.4|
|Green Sunfish||Gill net||0.17||0.1 - 0.5||0.13||N/A|
|Hybrid Sunfish||Trap net||1.36||N/A||0.24||N/A|
|Largemouth Bass||Gill net||1.00||0.3 - 1.2||1.07||0.6 - 1.0|
|Northern Pike||Trap net||0.57||N/A||4.00||N/A|
|Gill net||3.08||3.0 - 7.9||3.23||1.7 - 2.8|
|Pumpkinseed||Trap net||0.79||1.6 - 6.9||0.39||0.1 - 0.3|
|Rock Bass||Trap net||1.07||0.7 - 3.3||0.44||0.2 - 0.5|
|Gill net||10.92||1.0 - 6.6||0.35||0.3 - 0.5|
|Smallmouth Bass||Trap net||1.36||0.1 - 0.6||0.30||0.1 - 0.6|
|Gill net||1.25||0.2 - 0.9||1.57||0.9 - 1.8|
|Tullibee (cisco)||Gill net||0.17||0.5 - 5.2||1.13||0.4 - 1.0|
|Walleye||Trap net||1.43||0.3 - 0.9||2.36||1.0 - 2.2|
|Gill net||8.58||4.0 - 9.6||1.49||1.1 - 1.9|
|White Sucker||Trap net||0.14||0.2 - 0.8||2.57||1.4 - 2.7|
|Gill net||1.00||1.0 - 3.5||1.65||1.5 - 2.3|
|Yellow Bullhead||Trap net||1.00||0.9 - 4.8||1.08||0.7 - 1.0|
|Gill net||3.33||0.6 - 6.4||1.01||0.6 - 0.9|
|Yellow Perch||Gill net||1.08||7.1 - 33.9||0.09||0.1 - 0.2|
|Species||Number of fish caught in each category (inches)|
|For the record, the largest Longnose Gar taken in Minnesota weighed 16 lbs., 12 oz. and was caught: |
Statistics: 53" length, 16.5" girth
Fish Stocked by Species for the Last Ten Years
|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.|
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
|Unrestricted||1 meal/week||1 meal/month||Do not eat|
Kandiyohi Co., 34007900
|Bluegill Sunfish||All sizes||Mercury|
|Northern Pike||shorter than 17"||17" or longer||Mercury|
|Rock Bass||All sizes||Mercury|
|White Sucker||All sizes||Mercury|
|Unrestricted||1 meal/week||1 meal/month||Do not eat|
Kandiyohi Co., 34007900
|Bluegill Sunfish||All sizes|
|Northern Pike||shorter than 28"||28" or longer||Mercury|
|Rock Bass||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.
A resurvey of Green Lake was conducted during late July and early August of 2013. Green is a large (5,406 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 low during the 2012 fall, normal during the 2013 spring thru late-summer, but low by fall. Nutrient levels were relatively low during June of 2013 (total phosphorus=0.015 ppm, chlorophyll-a=6.3 ppb). Water clarity was moderate (11.0 feet) for Green Lake on August 1, 2013.
Climate change effects have been noticeable for both habitat and species density changes in Green Lake during recent decades. Periphyton (algae, diatoms) and dead plant material now cover the boulder/rubble substrates generally all year long with exception of some narrow (<1 foot deep) windswept near shore areas. This has favored warm water species (black crappie, bass, bluegill, rock bass) which are nest spawners, unlike broadcast spawners such walleye and tullibee. In addition, increased densities of submergent vegetation such as invasive Eurasian watermilfoil have provided added habitat/cover for warm water fish species. The 2013 most frequently observed submergent and algal vegetation species or groups included chara, stonewort, Eurasian watermilfoil, river pondweed, water moss, clasping-leaf pondweed, sago pondweed and curly-leaf pondweed. Emergent vegetation such as hardstem bulrush is abundant in the outlet bay. A moderate stand of bulrush is also present along the southeast shore. Shoalwater substrates are mostly sand, rubble, gravel and boulder. The ice out of May 9th was the latest recorded date since 1897 for Green Lake. The 2013 spring/early summer weather was cold/cool with above normal precipitation, whereas, the late summer and early fall was noticeably warmer with minimal precipitation. Ice on was relatively early (November 27) during 2013 for Green.
A broad band (3-36 feet) of ideal temperatures (<74 F) and dissolved oxygen levels (>3 ppm) for tullibee were present in Green during late July and early August of 2013. Although conditions were present for a major tullibee summerkill in 2012, none was observed probably due to low numbers of adults present in the population. A few local residents reported a minor summerkill of dead tullibee near shore areas of Green during 2011. We observed only a few dead tullibee during the 2011 population assessment. A major summerkill of tullibee occurred during the same time period on nearby Lake Koronis in 2011. Green had been the only lake in the Spicer Area open to the public for fall gillnetting of tullibee during late November or early December each year since the late 1980's. Green Lake was not opened for tullibee gillnetting in 2012 or 2013 due to the low numbers sampled in recent years. Tullibee are an important forage fish for trophy northern pike in Green.
The threats of present (Eurasian watermilfoil, curly-leaf pondweed) and potential exotic invasive species introductions (i.e. zebra mussels, 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 permanently have been unsuccessful. Private applicators are currently using agricultural based global positioning techniques to better target a specific granular herbicide to known EWM stands. Unfortunately, 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. The frequency of occurrence of EWM in near shore transects has increased from 4 sites in 2003, 16 sites in 2007, 20 sites in 2008 and 28 sites in 2013. EWM mean abundance at transect sites has also increased in a similar trend from 2003 (1.3%) to 2013 (12.0%).
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. Many large stands of EWM on Green Lake have been located near storm water inlets. Watershed projects that may reduce sediment and nutrient inputs from storm water inlets will also be important for controlling EWM in these patchy areas. Widespread-extensive matting of EWM on the surface is unlikely to occur throughout Green Lake unlike some milfoil infested lakes with protected bay areas (i.e. Minnetonka) due to frequent windswept conditions, the presence of relatively low nitrogen (ammonium) nutrient levels, and unsuitable dominant substrates (boulder, rubble, gravel) present in the majority of shoal water areas of Green Lake. DNR Aquatic invasive species interns will continue to randomly monitor boats entering and leaving the many access sites in an attempt to educate and prevent the spread of exotics into Kandiyohi County Lakes.
Bluegill numbers were moderate in 2013 (33.00/trapnet) compared to the normal range of similar lakes, but below Green Lake historical average (46.76 fish/trapnet). The 2013 bluegill average size was moderate (0.17 pounds and 5.90 inches) from trapnets. The bluegill historical average weight is 0.13 pounds from trapnets. The 2013 catch rate of moderate sized (>6.0 inches) bluegill was high (18.50 fish/trapnet). The 2013 catch rate of large (>8.0 inches) bluegill was low (1.25 fish/trapnet). Bluegill growth rates were near or below the Spicer Area and Green Lake normal ranges for ages 1-6, but above the normal ranges for ages 7-8. The 2010 and 2008 year classes comprised 54% and 25% respectively of the 2013 bluegill catch.
Black crappie numbers were moderately abundant in 2013 (4.33 fish/gillnet) and above the Green Lake historical average (1.20 fish/gillnet). The 2013 black crappie average size was moderate from gillnets (0.44 pounds and 8.08 inches). Black crappie growth rates were below the Spicer Area and Green Lake normal ranges for ages 1-3, but within or above the normal ranges for ages 4-7. The 2012 and 2008 year classes comprised 33% and 22% respectively of the 2013 black crappie catch.
Northern pike numbers were moderately abundant in 2013 (3.08 fish/gillnet) compared to the Green Lake historical average (2.75 fish/gillnet). The 2013 northern pike average size was moderate (3.23 pounds and 24.06 inches) from gillnets. The 2013 catch rate of large (>28 inches) northern pike (0.42 fish/gillnet) was similar to the historical average (0.43 fish/gillnet). Northern pike captured in 2003-2005, 2007, 2009 and 2012-2013 assessments were notably lean in appearance compared to fish captured in the assessments prior to 2003. Low numbers of forage fish (yellow perch and tullibee) were documented in Green Lake assessments from 2003-2013. Northern pike growth rates were generally near or below the Green Lake normal ranges for ages 2-8. However, growth rates were within the Spicer Area normal ranges for ages 1-8. The 2010 and 2008 year classes comprised 27% and 25% respectively of the 2013 northern pike gillnet and trapnet catch.
Smallmouth bass numbers were moderately abundant in 2013 (1.25 fish/gillnet) compared to the normal range of similar lakes, but below the Green Lake historical average (1.92 fish/gillnet). The 2013 smallmouth bass average size was moderately large (1.57 pounds and 12.70 inches) and similar to the historical average (1.55 pounds and 13.36 inches) from gillnets for Green Lake. The 2013 catch rate of large (>14 inches) smallmouth bass (0.75 fish/gillnet) was moderate, but slightly below the historical average (1.17 fish/gillnet). Smallmouth bass condition factors have been poor since 2000 except for 2004 and 2011. Smallmouth bass growth rates were within both the Green Lake and Spicer Area normal ranges for ages 1-8. The 2012 and 2008 smallmouth bass year classes comprised 29% and 21% respectively of the 2013 smallmouth bass gillnet catch.
Crayfish, an important smallmouth bass forage species, were not captured in 2007-2009 and 2012-2013. Low numbers of crayfish were captured in 2011 (1.1 crayfish/gillnet), 2010 (0.3 crayfish/gillnet), 2006 (0.1 crayfish/gillnet) and 2005 (0.2 crayfish/gillnet). No crayfish were caught in the 2002-2004 gillnets. The crayfish historical average catch rate is 6.7 crayfish/gillnet for Green.
Tullibee "cisco" numbers were low in the 2013 summer (0.17 fish/gillnet) compared to the Green Lake historical average summer catch rate (2.24 fish/gillnet). The 2013 summer tullibee average size was large (1.13 pounds and 14.57 inches) from gillnets. The tullibee historical summer average weight is 0.62 pounds from gillnets.
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. Tullibee growth rates were within the Green Lake normal ranges for ages 1 and 6, but below the Green Lake normal ranges for ages 2-5. 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. The 2008 year class comprised 76% of the 2012 fall tullibee catch in Green Lake. Low numbers of tullibee were captured in nearby Lake Koronis (5.33 fish/gillnet, 14.91 inches average length) in the 2012 fall standard lake survey gillnets.
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 2013 (1.08 fish/gillnet) compared to the normal range of similar lakes and the Green Lake historical average (13.90 fish/gillnet). The trend of low yellow perch numbers have been reported in other statewide lakes during recent years. The 2013 yellow perch average size was small (0.08 pounds and 6.25 inches) from gillnets. The yellow perch historical average weight is 0.12 pounds from gillnets. Yellow perch growth rates were near the upper ends of the Spicer Area and Green Lake normal ranges for ages 1-2. All yellow perch captured in the 2013 gillnets were from the 2011 year class.
Walleye abundance in 2013 (8.58 fish/gillnet) was within the normal range for similar lakes, but slightly below the Green Lake historical average (9.17 fish/gillnet). The 2013 walleye average size was moderate (1.49 pounds and 15.36 inches) from gillnets. The walleye historical average weight and length are 1.27 pounds and 14.67 inches from gillnets. The 2013 catch rate of moderate sized (>15 inches) walleye was moderate (4.42 fish/gillnet) and slightly above the historical average (3.89 fish/gillnet) for Green Lake. The 2013 catch rate of large (>20 inches) walleye (0.92 fish/gillnet) was similar to the historical average (0.77 fish/gillnet). Walleye condition factors were fair to poor in 2013. Walleye growth rates were generally below the Spicer Area normal ranges for ages 1-7. Growth rates were generally above the Green Lake normal ranges for ages 3-8. Recent walleye year classes have been due mostly to stocking since 2001. The 2011 and 2009 year classes each comprised about 18% of the 2013 walleye gillnet and trapnet catch. Other moderate walleye year classes present included 2006-2008, 2010 and 2012. Oxytetracycline "OTC" marked walleye (fry stocked) accounted for 33% of the 2013 walleye gillnet catch of 9-14 inch size range (2012-2010 year classes).
Green Lake has been stocked annually with walleye fry (1-4 million) from 2000-2013 except for 2002. OTC marked walleye fry (1-2 million) were stocked in Green each year during 2000-2001 and 2007-2013. Approximately 2.0 million OTC marked walleye fry were stocked in Green during 2013. The walleye fry were stocked in part as a 10% return of walleye eggs taken for the statewide propagation program. Marked OTC walleye fingerlings (30,787 fish) accounted for 60% of the fingerlings stocked (51,641 fish) in Green during the 2008 fall. Walleye unmarked fingerlings (91,716 fish, 3,208 pounds) and OTC marked fry (1,999,770 fish) were stocked into Green during 2013. Various combinations of walleye fingerlings, yearlings, or adults have been stocked annually (2,000-4,000 pounds/year) since 2000 into Green Lake. During the 1990's, walleye fry were stocked in 1996 and larger walleye (fingerlings and adults) were stocked in 1994, 1992 and 1990.
A fall electrofishing assessment of Green Lake was conducted on October 7, 2013 to evaluate walleye natural reproduction and a 2013 walleye fry stocking in Green Lake. Low numbers of young of year "YOY" walleye were captured in the 2013 fall electrofishing survey (5.00 YOY/hour, 6.40 inches average length). OTC marked fish comprised 40% (2013 fry stocked year class) of the 2013 fall YOY walleye catch. OTC marked fish (2012 fry stocked year class) comprised 55% (6.60 YOY/hour) of the 2012 YOY fall walleye catch (12.00 YOY/hour). Moderate numbers of YOY walleye were captured in a previous 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 Green Lake fall electrofishing historical average YOY walleye catch rate and length are 13.89 YOY/hour and 6.73 inches. The highest fall electrofishing catch rate of YOY walleye for Green occurred in 1994 (54.00 YOY/hour, 6.15 inches average size). Yearling walleye numbers were low (1.00 fish/hour, 8.58 inches) in the 2013 fall survey.
Rock bass numbers were abundant in 2013 (10.92 fish/gillnet) compared to the normal range for similar lakes and Green Lake historical average (8.04 fish/gillnet) for Green Lake. The 2013 rock bass average size was small (0.35 pounds and 7.18 inches) from gillnets. The rock bass historical average weight is 0.41 pounds from gillnets.
Largemouth bass numbers were moderately abundant in 2013 (1.00 fish/gillnet) compared to the normal range of similar lakes and the Green Lake historical average (0.74 fish/gillnet). The 2013 largemouth bass average size was moderate (1.07 pounds and 11.38 inches) from gillnets. The largemouth bass historical average weight is 0.70 pounds from gillnets. Growth rates were generally below or near both the Green Lake and Spicer Area 25th quartiles for ages 2-5. The 2011 and 2008 largemouth year classes comprised 42% and 25% respectively of the 2012 largemouth bass gillnet and trapnet catch.
Other species captured included low numbers of white sucker (1.00 fish/gillnet), carp (0.14 fish/trapnet), pumpkinseed sunfish (0.79 fish/trapnet), hybrid sunfish (1.36 fish/trapnet) and black bullhead (0.14 fish/trapnet). Moderate numbers of large yellow bullhead were captured in 2013 (3.33 fish/gillnet, 1.01 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 2014 fall for walleye natural reproduction, and 2014 summer for all fish species by assessment nets.
|For more information on this lake, contact:||Lake maps can be obtained from:|
For general DNR Information, contact:
DNR Information Center
500 Lafayette Road
St. Paul, MN 55155-4040
TDD: (651) 296-6157 or (888) MINNDNR
Turn in Poachers (TIP):
Toll-free: (800) 652-9093