Fisheries Lake Survey

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Name: Irene

Nearest Town: Miltona
Primary County: Douglas
Survey Date: 08/04/2014
Inventory Number: 21007600
Buy your walleye stamp todayPurchase a walleye stamp. Your voluntary contribution will be used to support walleye stocking.

Public Access Information

Ownership Type Description
DNR Concrete Southeast access. Located off County Road # 64.
DNR Concrete


Lake Characteristics

Lake Area (acres): 639.26
Littoral Area (acres): 240.38
Maximum Depth (ft): 44
Water Clarity (ft): 6

Dominant Bottom Substrate: N/A
Abundance of Aquatic Plants: N/A
Maximum Depth of Plant Growth (ft): 14.2 (12-16)


Did you know? The annual budget for the Section of Fisheries is approximately $17 million, which is funded primarily by fishing license and stamp fees and by a federal excise tax on fishing and boating equipment.

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 Crappie Trap net 1.17 0.4 - 2.3 0.41 0.3 - 0.6
Gill net 4.83 0.4 - 2.7 0.59 0.3 - 0.6
Bluegill Trap net 29.08 4.4 - 49.0 0.11 0.1 - 0.2
Gill net 7.83 N/A 0.37 N/A
Bowfin (dogfish) Trap net 0.42 0.3 - 1.1 4.85 3.7 - 5.1
Brown Bullhead Trap net 0.17 0.3 - 1.6 1.68 0.7 - 1.1
Gill net 0.33 0.3 - 1.8 1.68 0.7 - 1.2
Green Sunfish Trap net 0.17 0.2 - 1.0 0.06 0.1 - 0.2
Hybrid Sunfish Trap net 1.58 N/A 0.27 N/A
Gill net 0.50 N/A 0.47 N/A
Largemouth Bass Trap net 0.67 0.3 - 1.3 1.86 0.2 - 0.8
Gill net 3.42 0.3 - 1.4 1.52 0.5 - 1.2
Northern Pike Trap net 0.17 N/A 2.51 N/A
Gill net 5.58 2.8 - 9.0 2.03 1.6 - 2.8
Pumpkinseed Trap net 2.42 1.8 - 7.8 0.26 0.1 - 0.3
Gill net 3.58 N/A 0.31 N/A
Shorthead Redhorse Gill net 0.08 0.2 - 0.9 1.27 1.1 - 2.2
Tullibee (cisco) Gill net 0.17 0.8 - 6.2 2.16 0.6 - 1.4
Walleye Trap net 0.17 0.2 - 0.8 0.56 1.0 - 2.7
Gill net 9.08 3.3 - 8.8 1.27 1.2 - 2.1
White Sucker Gill net 1.08 0.9 - 4.0 1.94 1.6 - 2.4
Yellow Bullhead Trap net 3.00 1.2 - 5.2 0.76 0.6 - 0.9
Gill net 21.08 1.2 - 10.9 0.93 0.6 - 0.9
Yellow Perch Trap net 0.17 0.6 - 3.5 0.14 0.1 - 0.2
Gill net 2.33 7.0 - 46.3 0.22 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 crappie 3 8 58 3 0 0 0 0 72
bluegill 318 104 16 0 0 0 0 0 438
bowfin (dogfish) 0 0 0 0 1 2 2 0 5
brown bullhead 0 0 0 2 4 0 0 0 6
green sunfish 2 0 0 0 0 0 0 0 2
hybrid sunfish 9 14 2 0 0 0 0 0 25
largemouth bass 1 0 11 13 24 0 0 0 49
northern pike 0 0 0 1 29 31 8 0 69
pumpkinseed 5 67 0 0 0 0 0 0 72
shorthead redhorse 0 0 0 1 0 0 0 0 1
tullibee (cisco) 0 0 0 0 2 0 0 0 2
walleye 0 4 8 71 15 10 2 0 110
white sucker 0 0 0 4 8 1 0 0 13
yellow bullhead 1 5 164 119 0 0 0 0 289
yellow perch 2 25 3 0 0 0 0 0 30


For the record, the largest Kokanee Salmon taken in Minnesota weighed 2 lbs., 15 oz. and was caught:

    Where: Caribou Lake, Itasca County
    When: 8/6/71
    Statistics: 20" length, 11.5" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2014 walleye1 fingerlings 6,000 300.0
2013 Walleye fingerlings 9,326 330.0
  Walleye adults 140 140.0
2011 Walleye fingerlings 7,638 465.0
2009 Walleye1 fingerlings 4,860 448.0
  Walleye1 yearlings 5,000 200.0
2008 Walleye1 fingerlings 5,000 250.0
2007 Walleye1 yearlings 500 90.0
  Walleye1 fingerlings 6,570 448.0
2006 Walleye1 fingerlings 3,000 150.0
2005 Walleye1 fingerlings 12,994 583.1

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
IRENE
Douglas Co., 21007600
Bluegill Sunfish All sizes        
Bullhead All sizes        
Northern Pike   All sizes     Mercury
Walleye   All sizes     Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
IRENE
Douglas Co., 21007600
Bluegill Sunfish All sizes        
Bullhead All sizes        
Northern Pike   All sizes     Mercury
Walleye 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)

Lake Irene is a 639-acre lake located near the town of Miltona in northeast Douglas County. Lake Irene lies within the Long Prairie River watershed and outflows to Lake Miltona via a non-navigable channel on the south shoreline. Maximum depth of the basin is 44.0 feet. Average depth is estimated at 19.8 feet. Ecological productivity is constrained by basin morphology. Only 37% of the surface area is less than 15.0 feet in depth. The lake becomes thermally stratified during summer months. The thermocline was detected below 15.0 feet in depth during the early-August 2014 fish community assessment. Dissolved oxygen concentrations below 21.0 feet were insufficient to support fish until fall mixing occurs. Secchi transparency measurements typically exceed 8.0 feet during summer months. Residential development is moderate. Most shoreline development occurs along east and southwest shorelines. Much of the undeveloped western shoreline supports a robust, mixed growth of hardstem bulrush and cattails.

Lake Irene supports a high-quality Walleye fishery sustained by some natural recruitment and regular supplemental stockings by the Lake Irene Association and MN DNR. Walleye catches in 2014 averaged 9.1 fish per gillnet, which is well above expected abundance levels for similar lakes. The population sample included representatives of 10 age classes. Walleye captures ranged from 6.9 to 28.7 inches in length. Average size in 2014 was 14.7 inches and 1.3 pounds. Size distribution measures were strongly influenced by high relative proportion of three-year-old individuals making up the population sample. A very strong year class was established in 2011. Age-3 fish account for 75% of the total gillnet catch. Cohorts of the 2011 year class averaged 14.0 inches at capture. If average growth can be sustained, these fish should approach 16.0 inches in late summer of 2015.

Walleye management efforts are benefitted by low to modest densities of Northern Pike. Most pike captured during the 2014 survey were small. Average length of gillnet captures was 20.6 inches. The largest pike measured was 27.8 inches in length.

Lake Irene lacks an expansive littoral area and extensive vegetated habitat, but does sustain a healthy sunfish community. Bluegill and Black Crappie are moderately abundant and in response, these popular panfishes grow reasonably well. Size structure of both populations was dominated by medium-sized fish in 2014, but with an adequate life span, Bluegill and Black Crappie can grow to memorable sizes. The largest Bluegill captured during the 2014 survey measured 9.9 inches. Two crappies exceeded 13.0 inches in total length. Spring electrofishing catches in 2014 described an abundant Largemouth Bass population. Age distribution of bass captures extended to age 15. The bass population offers quality fishing opportunities due to a relatively high proportion of older fish in the lake. Over half of the total electrofishing catch was comprised of nine- and ten-year-old fish. Mean and maximum lengths for Largemouth Bass captured by electrofishing were 14.4 and 17.5 inches, respectively. Growth of Largemouth Bass drops rapidly beyond age five, so Lake Irene is not likely to yield 20.0-inch fish. Other members of the sunfish family residing in Lake Irene include Pumpkinseed, Green Sunfish, and various sunfish hybrids. No Rock Bass have been captured since the 1980 survey.

Fish management concerns include a sustained decrease in Yellow Perch abundance. Catch rates of this important prey fish have remained well below the range of normal catches from similar basins during all recent surveys. Scarcity of preferred-size prey may explain slow growth or potential high mortality of older, larger predators. A few harvestable-size perch are present. Those perch caught in gillnets averaged only 7.7 inches in length.

Other fish species sampled during the 2014 survey include Brown and Yellow Bullhead, Bowfin (Dogfish), Shorthead Redhorse, Tullibee (Cisco), and White Sucker. The next lake survey is tentatively scheduled for 2020.

Public accesses are located on the northwest shore off of NW Irene Road and on the southeast shore off of County Road 64.

Lake Irene is now designated as an infested waterbody due to the presence of zebra mussels, which were first confirmed in 2012. Regulations restricting bait harvest and transport of water apply to this basin. For more information regarding aquatic invasive species in Minnesota see the following: http://www.dnr.state.mn.us/invasives/aquatic/index.html


For more information on this lake, contact:

Area Fisheries Supervisor
23070 North Lakeshore Dr
Glenwood, MN 56334
Phone: (320) 634-4573
Internet: Glenwood Fisheries
E-Mail: Glenwood.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 C1210 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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