Fisheries Lake Survey

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Name: Black Hoof

Nearest Town: Ironton
Primary County: Crow Wing
Survey Date: 06/14/2010
Inventory Number: 18011700
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Public Access Information

Ownership Type Description
DNR Concrete Access on the south side of the lake.


Fish Health:

Disease:Heterosporis sp.Date Tested:1/29/2010Result:Positive
Source: MNDNR

Lake Characteristics

Lake Area (acres): 201.09
Littoral Area (acres): 81
Maximum Depth (ft): 29
Water Clarity (ft): 12

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


Did you know? The state operates 17 hatcheries: 5 for trout and salmon and 12 for coolwater species.

Fish Sampled for the 2010 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Black Crappie Trap net 0.33 0.7 - 3.4 0.24 0.2 - 0.6
Gill net 1.83 0.6 - 3.5 0.51 0.2 - 0.5
Bluegill Trap net 35.44 6.1 - 46.6 0.16 0.1 - 0.3
Gill net 3.00 N/A 0.26 N/A
Bowfin (dogfish) Trap net 1.67 0.4 - 1.3 4.58 2.9 - 4.9
Brown Bullhead Trap net 0.22 0.4 - 2.1 1.25 0.6 - 1.1
Gill net 0.50 0.5 - 2.5 1.65 0.6 - 1.0
Hybrid Sunfish Trap net 1.00 N/A 0.32 N/A
Largemouth Bass Trap net 0.33 0.3 - 1.3 1.64 0.2 - 0.7
Gill net 1.83 0.3 - 1.7 0.94 0.6 - 1.2
Northern Pike Trap net 0.56 N/A 0.80 N/A
Gill net 7.17 3.5 - 10.5 2.36 1.6 - 2.9
Pumpkinseed Trap net 0.89 2.0 - 8.5 0.17 0.1 - 0.2
Rock Bass Trap net 0.22 0.5 - 1.8 0.27 0.2 - 0.5
Gill net 0.50 0.3 - 1.9 0.32 0.2 - 0.5
Walleye Trap net 0.11 0.3 - 0.7 3.73 1.1 - 3.4
Gill net 1.33 1.3 - 5.0 3.29 1.3 - 2.5
White Sucker Gill net 0.33 0.5 - 2.7 3.04 1.8 - 2.5
Yellow Bullhead Trap net 1.44 1.3 - 9.8 0.97 0.5 - 0.8
Yellow Perch Trap net 0.44 0.5 - 3.3 0.11 0.1 - 0.2
Gill net 21.00 3.4 - 43.6 0.15 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 2010 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 4 1 9 0 0 0 0 0 14
bluegill 178 154 0 0 0 0 0 0 337
bowfin (dogfish) 0 0 0 0 2 8 5 0 15
brown bullhead 0 0 0 3 2 0 0 0 5
hybrid sunfish 3 6 0 0 0 0 0 0 9
largemouth bass 0 2 5 5 2 0 0 0 14
northern pike 0 0 3 3 22 13 3 4 48
pumpkinseed 5 3 0 0 0 0 0 0 8
rock bass 1 4 0 0 0 0 0 0 5
walleye 0 0 0 0 3 5 1 0 9
white sucker 0 0 0 0 1 1 0 0 2
yellow bullhead 0 0 7 6 0 0 0 0 13
yellow perch 9 119 0 0 0 0 0 0 130


For the record, the largest Blue Sucker taken in Minnesota weighed 14 lbs., 3 oz. and was caught:

    Where: Mississippi River near Alma, Wabasha County
    When: 2/28/87
    Statistics: 30.4" length, 20.2" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2013 Walleye fingerlings 2,150 86.0
2010 Walleye adults 59 33.0
  Walleye fingerlings 1,688 47.0
2007 Walleye* fingerlings 1,024 80.0
2004 Walleye yearlings 1,323 49.0

Privately Stocked Fish
* indicates privately stocked fish. Private stocking includes fish purchased by the DNR for stocking and fish purchased and stocked by private citizens and sporting groups.

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
BLACK HOOF
Crow Wing Co., 18011700
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
BLACK HOOF
Crow Wing Co., 18011700
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 06/14/2010)

Black Hoof Lake is a 183 acre lake located a mile west of Ironton. There is a public access located on the south shore. The maximum depth is 29 feet and 44% of the lake is less than 15 feet deep. Walleye, the primary management species of the lake, have been stocked as fingerlings once every three years since 1986. Walleye were captured at a rate of 1.3 per gill net, similar to the last assessment and at the low end of the expected range for this type of lake.

Northern pike are the most abundant game fish in the lake and were captured at a rate of 7.2 per gill net. While the 2010 catch was a decrease from previous surveys, it was near the average for similar lakes. Pike size ranged from 11 to 36 inches and averaged 20.9" and 2.4 pounds.

Largemouth bass were sampled in numbers similar to the previous survey at 1.8 per gill net and 0.3 per trap net. Growth was average, fish from 7.7 to 17.7 inches were collected and average size was 12". The catch of black crappie was typical for this type of lake and remained similar to previous surveys. Size of fish was decent. The bluegill catch was also normal for this type of lake, but was an increase from previous catches on this lake. Size of bluegills was small.

Yellow perch were captured at a rate of 21.0 per gill net which is within the expected range of value for this type of lake. Perch are an important prey species for the lake, although with only 5% measuring at least 8", few reach a size large enough to be of interest to anglers.

Additional sampling for nearshore fish was also conducted using shoreline seining and backpack electrofishing. Various species of darters, shiners, and other minnows common to the area were collected. A total of 23 species of fish were collected in all sampling methods combined during the 2010 survey.


For more information on this lake, contact:

Area Fisheries Supervisor
1601 Minnesota Dr
Brainerd, MN 56401
Phone: (218) 828-2550
Internet: Brainerd Fisheries
E-Mail: Brainerd.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 C1027 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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