Fisheries Lake Survey

printer friendly version

Name: Orono

Nearest Town: Elk River
Primary County: Sherburne
Survey Date: 08/04/2008
Inventory Number: 71001300

Public Access Information

Ownership Type Description
City Concrete Access is located south of highway 10, on west side of lake.


Lake Characteristics

Lake Area (acres): 300.5
Littoral Area (acres): 281
Maximum Depth (ft): 18
Water Clarity (ft): 2

Dominant Bottom Substrate: Sand (Abundant)
Abundance of Aquatic Plants: 18 Varieties Sampled
Maximum Depth of Plant Growth (ft): 1.3 (0-3.5)


Did you know? MinnAqua Fishing: Get in the Habitat! has a Minnesota-base activity guide for teachers, scout and 4-H leaders, youth leaders, outdoor sports groups, or anyone interested in teaching others about habitat, stewardship and fishing.

Fish Sampled for the 2008 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Bullhead Trap net 0.56 2.2 - 60.5 0.26 0.2 - 0.5
Gill net 7.17 9.6 - 91.4 0.49 0.2 - 0.5
Black Crappie Trap net 4.22 2.4 - 15.1 0.21 0.2 - 0.4
Gill net 1.67 1.5 - 14.7 0.19 0.1 - 0.3
Bluegill Trap net 1.11 1.9 - 29.5 0.06 0.2 - 0.3
Channel Catfish Trap net 0.22 N/A 0.12 N/A
Common Carp Trap net 1.11 1.0 - 3.6 5.34 2.1 - 5.3
Gill net 1.00 0.3 - 4.2 5.12 0.8 - 5.0
Northern Pike Trap net 0.22 N/A 2.37 N/A
Gill net 1.67 1.5 - 7.0 1.97 1.5 - 3.4
Rock Bass Trap net 0.56 0.3 - 1.2 0.14 0.2 - 0.6
Gill net 1.33 0.3 - 2.1 0.36 0.3 - 0.5
Shorthead Redhorse Trap net 1.33 1.2 - 6.8 3.39 1.2 - 2.4
Gill net 3.17 0.3 - 2.0 2.37 1.1 - 2.3
Silver Redhorse Trap net 4.78 N/A 2.80 N/A
Gill net 1.00 N/A 2.96 N/A
Smallmouth Bass Gill net 1.00 N/A 1.46 N/A
Walleye Trap net 0.22 0.4 - 1.9 3.34 0.6 - 2.6
Gill net 2.17 1.0 - 7.3 2.99 1.0 - 2.8
White Crappie Trap net 0.11 2.5 - 11.6 0.24 0.2 - 0.4
Gill net 0.17 1.2 - 6.4 0.11 0.1 - 0.4
White Sucker Trap net 0.67 0.3 - 2.2 1.28 1.1 - 2.5
Gill net 3.00 0.5 - 7.4 1.59 1.0 - 2.2
Yellow Bullhead Trap net 1.00 0.8 - 6.2 0.90 0.4 - 0.7
Gill net 3.83 0.6 - 6.8 0.38 0.4 - 0.6
Yellow Perch Trap net 0.11 0.5 - 3.4 0.06 0.1 - 0.3
Gill net 3.00 3.0 - 26.5 0.40 0.1 - 0.3
Normal Ranges represent typical catches for lakes with similar physical and chemical characteristics.


Length of Selected Species (Trapnet, Gillnet) Sampled for the 2008 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 1 18 29 0 0 0 0 0 48
black crappie 20 25 2 1 0 0 0 0 48
bluegill 9 1 0 0 0 0 0 0 10
channel catfish 0 2 0 0 0 0 0 0 2
common carp 0 0 0 0 1 14 1 0 16
northern pike 0 1 0 1 1 6 3 0 12
rock bass 4 8 1 0 0 0 0 0 13
shorthead redhorse 0 1 0 2 17 11 0 0 31
silver redhorse 0 1 1 0 29 18 0 0 49
smallmouth bass 0 0 2 1 3 0 0 0 6
walleye 0 0 0 1 5 9 0 0 15
white crappie 0 2 0 0 0 0 0 0 2
white sucker 1 2 2 3 16 0 0 0 24
yellow bullhead 8 7 8 9 0 0 0 0 32
yellow perch 1 7 11 0 0 0 0 0 19


For the record, the largest Tiger Trout taken in Minnesota weighed 2 lbs., 9.12 oz. and was caught:

    Where: Mill Creek, Olmsted County
    When: 8/7/99
    Statistics: 20" length, 9 5/8" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2007 Black Crappie1 adults 1,000 58.8
  Bluegill1 adults 1,500 75.0
2004 Bluegill adults 309 103.0

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
ORONO
Sherburne Co., 71001300
Carp     All sizes   Mercury
Northern Pike   All sizes     Mercury
Smallmouth Bass   All sizes     Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
ORONO
Sherburne Co., 71001300
Carp   All sizes     Mercury
Northern Pike   All sizes     Mercury
Smallmouth Bass 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 08/04/2008)

Orono Lake is a 281-acre reservoir in southeast Sherburne County. It formed by a dam on the Elk River at the City of Elk River. The lake was drawn down in 1999 to allow dredging of accumulated sediment in selected areas. Adult black crappie and bluegill were stocked between 1999-2003 to re-establish the populations. Daytime electrofishing was conducted in spring 2000 and 2003 to survey the fish populations; and trap nets were used in spring 2001-2003 to further evaluate the recovery of the fishery. This was the first full survey since 1984.

The most abundant species in gill nets were black bullhead, shorthead redhorse, white sucker, yellow bullhead and yellow perch. All of these were within the range of expected values for lakes similar to Orono, except for shorthead redhorse, which were above the normal range. All of these species are common in the Elk River and naturally exist in Orono Lake.

Important sport species such as walleye and northern pike were less abundant but still within the range of expected values and anglers can expect to catch an occasional walleye and northern pike. Twenty percent of northern pike were greater than 24 inches in length.

Electrofishing in 2008 found many smallmouth bass, which ranged in size from five to 19 inches. Largemouth are also present but smallmouth are more prevalent as is the case for the Elk River also.

Overall, catches were light in trap nets. Previous trap net assessments sampled few fish and it is unclear why net catches are low. The most abundant species in trap nets were black crappie and silver redhorse. When bluegill were caught in low numbers in 2003, electrofishing showed that bluegill were captured at a rate of 61.9/hour. Progeny from these fish should provide populations into the future.

Black crappie were present in modest numbers and ranged from 5 to 13 inches in size. Anglers can expect to catch an occasional large crappie.

The survey marked the first occurrence of channel catfish. Two small fish less than eight inches were taken in trap nets. Previously, catfish were found below the Orono Lake Dam.

It appeared that most species have recovered from the draw down in 1999. Further stocking does not appear to be necessary.


For more information on this lake, contact:

Area Fisheries Supervisor
7372 State Hwy 25 SW
Montrose, MN 55363
Phone: (763) 675-3301
Internet: Montrose Fisheries
E-Mail: Montrose.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 C2133 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

Tip Logo    Turn in Poachers (TIP):

    Toll-free: (800) 652-9093