Fisheries Lake Survey

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Name: Diamond

Nearest Town: Atwater
Primary County: Kandiyohi
Survey Date: 07/15/2013
Inventory Number: 34004400
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Public Access Information

Ownership Type Description
County Concrete East shore area.
County Concrete West side of lake- east side of CR#4 within Kandiyohi County Park#3.


Lake Characteristics

Lake Area (acres): 1606.9
Littoral Area (acres): 635
Maximum Depth (ft): 27
Water Clarity (ft): 9.5 (5-14.5)

Dominant Bottom Substrate: N/A
Abundance of Aquatic Plants: N/A
Maximum Depth of Plant Growth (ft): 8.8 (0-12.5)


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

Fish Sampled for the 2013 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Bullhead Trap net 0.17 0.3 - 2.6 1.51 0.5 - 0.9
Gill net 15.00 0.6 - 6.8 1.10 0.5 - 1.0
Black Crappie Trap net 23.75 0.4 - 2.3 0.13 0.3 - 0.6
Gill net 19.67 0.4 - 2.7 0.47 0.3 - 0.6
Bluegill Trap net 36.83 4.4 - 49.0 0.10 0.1 - 0.2
Gill net 5.00 N/A 0.28 N/A
Bowfin (dogfish) Trap net 0.17 0.3 - 1.1 5.68 3.7 - 5.1
Gill net 0.33 0.1 - 0.4 1.99 3.1 - 4.6
Common Carp Gill net 1.00 0.2 - 1.0 7.20 2.3 - 8.2
Hybrid Sunfish Trap net 0.33 N/A 0.17 N/A
Largemouth Bass Trap net 0.25 0.3 - 1.3 1.23 0.2 - 0.8
Northern Pike Trap net 0.58 N/A 5.28 N/A
Gill net 9.33 2.8 - 9.0 2.63 1.6 - 2.8
Pumpkinseed Trap net 1.42 1.8 - 7.8 0.21 0.1 - 0.3
Gill net 1.67 N/A 0.42 N/A
Walleye Trap net 0.75 0.2 - 0.8 2.98 1.0 - 2.7
Gill net 15.00 3.3 - 8.8 2.67 1.2 - 2.1
Yellow Bullhead Trap net 6.67 1.2 - 5.2 0.87 0.6 - 0.9
Gill net 14.33 1.2 - 10.9 0.79 0.6 - 0.9
Yellow Perch Trap net 4.42 0.6 - 3.5 0.11 0.1 - 0.2
Gill net 89.33 7.0 - 46.3 0.16 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 2013 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 20 27 0 0 0 0 47
black crappie 250 25 61 1 0 0 0 0 344
bluegill 392 59 0 0 0 0 0 0 457
bowfin (dogfish) 0 0 0 0 1 1 1 0 3
common carp 0 0 0 0 0 3 0 0 3
hybrid sunfish 3 1 0 0 0 0 0 0 4
largemouth bass 1 1 0 0 1 0 0 0 3
northern pike 0 0 0 3 6 18 6 2 35
pumpkinseed 8 14 0 0 0 0 0 0 22
walleye 0 0 2 14 15 21 2 0 54
yellow bullhead 0 2 100 16 0 0 0 0 123
yellow perch 130 184 3 0 0 0 0 0 321


For the record, the largest Quillback taken in Minnesota weighed 6 lbs., 14.4 oz. and was caught:

    Where: Mississippi River, Ramsey County
    When: 4/6/91
    Statistics: 23" length, 18" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2013 Walleye fingerlings 33,889 1,405.0
2008 Northern Pike adults 9 18.0
2007 Northern Pike adults 111 222.0
2005 Northern Pike adults 33 49.0
2004 Northern Pike adults 48 102.6
  Walleye adults 487 348.0
  Walleye fingerlings 19,354 925.0
  Walleye yearlings 276 46.0

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
DIAMOND
Kandiyohi Co., 34004400
Bluegill Sunfish All sizes        
Carp All sizes        
Northern Pike   All sizes     Mercury
Walleye   shorter than 17" 17" or longer   Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
DIAMOND
Kandiyohi Co., 34004400
Bluegill Sunfish All sizes        
Carp All sizes        
Northern Pike   All sizes     Mercury
Walleye   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 07/15/2013)

A population assessment was conducted on Diamond Lake during Mid-July of 2013. Diamond is a moderately large (1,565 acres), productive, and moderately deep (27 feet maximum) lake located in Kandiyohi County. There are numerous small inlets and one large inlet that drain primarily agricultural row crops via tile systems and wetlands into Diamond. A new perforated multi-culvert barrier was installed in 2012 at the largest inlet in order to prevent adult carp from Diamond entering into three shallow upstream lakes (Hubbard, Wheeler, and Schultz) to spawn and degrade water quality. Submergent vegetation species are varied and densities moderate in Diamond. Curly-leaf pondweed has been a nuisance especially along the north portions of the lake in the past, but has been less bothersome in recent years. Emergent vegetation present includes mostly hardstem bulrush (north point, east shoreline area) and cattail species (southeast bay). Shoalwater substrates of the main basin are mostly sand, rubble, and gravel. Silt and muck compose the majority of substrates in a shallow southeast bay. Mid-summer dissolved oxygen levels (>7.0 ppm) were good down to 21 feet deep during 2013. Water clarity was fair on July 22, 2013 (5.0 feet). Walleye natural reproduction is usually frequent and significant in Diamond compared to other Spicer Area lakes. Diamond is a popular lake for a variety of fish species which include walleye, northern pike, black crappie, bluegill, yellow perch and largemouth bass.

Black crappie numbers were abundant in 2013 (19.67 fish/gillnet) compared to the Diamond Lake historical average (6.01 fish/gillnet). The black crappie average size was moderate (0.47 pounds, 8.65 inches) in the 2013 gillnets. The 2013 catch rate of larger (>10 inches) black crappie was high (10.67 fish/gillnet). Black crappie growth rates were near or above the Spicer Area normal ranges for ages 2-7. The 2012 and 2009 year classes comprised 78% and 15% respectively of the 2013 black crappie gillnet and trapnet catch. Anglers had good success catching moderate to large size black crappie (2009 year class) in the 2013-14 winter.

Bluegill numbers were abundant in 2013 (36.83 fish/trapnet) compared to the historical average (12.99 fish/trapnet). The 2013 bluegill average size was small (0.09 pounds and 4.88 inches) from trapnets. However, we did observe local anglers catching moderate numbers of large sized (>0.5 pound) bluegill during the 2013 summer survey in Diamond.

A spring electrofishing survey, which best samples adult largemouth bass, was not conducted due to time constraints in 2013. We did sample low numbers of largemouth bass in the trapnets (0.25 fish/trapnet, 1.23 pounds average weight) during 2013 summer survey.

Northern pike numbers were abundant in 2013 (9.33 fish/gillnet) compared to the Diamond Lake historical average (4.68 fish/gillnet). The 2013 northern pike average size was small (2.63 pounds and 21.68 inches). The northern pike historical average weight is 2.73 pounds from gillnets. The 2013 catch rate of larger (>28 inches) northern pike was low (0.33 fish/gillnet). Northern pike growth rates were within the Spicer Area normal ranges for ages 1-3 and above the normal ranges for ages 4-7. The 2010 year class comprised 69% of the 2013 gillnet and trapnet catch.

Yellow perch numbers were abundant in 2013 (89.33 fish/gillnet) compared to the Diamond Lake historical average (45.44 fish/gillnet). The 2013 yellow perch average size was moderate (0.16 pounds and 7.10 inches) from gillnets. The 2013 catch rate of moderate sized (>8 inches) yellow perch was high (12.38 fish/gillnet).

Walleye were abundant in 2013 (15.00 fish/gillnet) compared to the normal range for similar lakes, but comparable to the historical average (16.73 fish/gillnet) for Diamond. Walleye sampled in gillnets during the 2013 survey were large (2.67 pounds and 18.22 inches). The walleye historical average weight is 1.82 pounds from gillnets. The 2013 catch rate of larger walleye (>20 inches) was high (6.00 fish/gillnet). Walleye growth rates were within the Spicer Area normal ranges for ages 1-8. The four prominent walleye year classes present in the 2013 gillnet and trapnet catch were from 2011 (27%), 2009 (25%), 2006 (20%) and 2005 (18%). Abundant numbers of young of year "YOY" walleye due to natural reproduction (>100 YOY/hour) were noted in fall electrofishing surveys of 2005-2006 and 2011 and yearlings in spring electrofishing survey of 2010. The YOY walleye catch rates were low (6.00 YOY/hour) in both the 2012 and 2013 fall electrofishing surveys. Recent walleye stockings included 2004 (19,354 fingerlings, 925 pounds; 276 yearlings, 46 pounds; 487 adults, 348 pounds) and 2013 (33,889 fingerlings, 1,405 pounds). Local anglers were reporting good catches of smaller walleye (12-14 inches) during the 2013 summer.

Black bullhead numbers were moderate in 2013 (15.00 fish/gillnet) compared the normal ranges of similar lakes, but below the Diamond Lake historical average (34.65 fish/gillnet). The 2013 black bullhead average size was large (1.10 pounds) from gillnets.

Current fish management activities on Diamond include monitoring the fish population on a periodic basis, protecting native aquatic vegetation through the permit process, participating in local watershed initiatives, preventing and educating about the spread of invasive species, and stocking various fish species as warranted. A fall electrofishing survey is scheduled to assess walleye natural reproduction in 2014. A resurvey of the Diamond Lake fish population is currently scheduled for 2018.


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 B0174 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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