Fisheries Lake Survey

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Name: Pine

Nearest Town: Grand Marais
Primary County: Cook
Survey Date: 06/16/2014
Inventory Number: 16019400

Public Access Information

Ownership Type Description
US Forest Service Carry-In Short carry-down on south shore, off Forest Road 1365. Fishing piers available along access road. Parking for three vehicles.


Lake Characteristics

Lake Area (acres): 97.72
Littoral Area (acres): 43.7
Maximum Depth (ft): 34
Water Clarity (ft): 10.9 (10-11.5)

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 2014 Survey Year

Species

Gear Used

Number of fish per net

Average Fish Weight (lbs)

Normal Range (lbs)

Caught

Normal Range

Bluegill Trap net 7.00 1.4 - 40.3 0.18 0.1 - 0.7
Gill net 0.25 N/A 0.14 N/A
Creek Chub Trap net 0.25 N/A ND N/A
Golden Shiner Trap net 0.17 N/A ND N/A
Splake Trap net 2.67 N/A 0.60 N/A
Gill net 11.25 N/A 0.45 N/A
White Sucker Trap net 11.25 0.5 - 3.4 0.91 0.8 - 1.6
Gill net 9.75 1.7 - 12.5 0.79 0.7 - 2.3
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
bluegill 34 51 0 0 0 0 0 0 85
creek chub 0 0 0 0 0 0 0 0 0
golden shiner 0 0 0 0 0 0 0 0 0
splake 0 4 49 15 9 0 0 0 77
white sucker 4 29 29 79 22 0 0 0 163


For the record, the largest Longnose Sucker taken in Minnesota weighed 3 lbs., 10.6 oz. and was caught:

    Where: Brule River, Cook County
    When: 5/19/05
    Statistics: 21" length, 10.25" girth

Fish Stocking Activity

Fish Stocked by Species for the Last Ten Years

Year Species Size Number Pounds
2014 splake fingerlings 8,630 228.1
2013 Splake fingerlings 7,000 174.0
2012 Splake fingerlings 7,000 214.0
2011 Splake fingerlings 7,000 254.6
2010 Splake fingerlings 5,000 142.1
2009 Rainbow Trout yearlings 3,000 1,158.3
  Splake fingerlings 5,044 140.1
2008 Rainbow Trout yearlings 3,000 974.0
  Splake fingerlings 5,000 148.8
2007 Rainbow Trout yearlings 3,000 1,107.0
  Splake fingerlings 5,000 188.7
2006 Rainbow Trout yearlings 3,000 1,162.8
  Splake fingerlings 5,060 145.0
2005 Rainbow Trout yearlings 3,000 1,132.1
  Splake fingerlings 5,778 184.3

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
PINE
Cook Co., 16019400
Brook Trout     All sizes   Mercury
Splake   All sizes     Mercury
White Sucker   All sizes     Mercury

General Population

LAKE NAME
County, DOWID
Species Meal Advice Contaminants
Unrestricted 1 meal/week 1 meal/month Do not eat
PINE
Cook Co., 16019400
Brook Trout   All sizes     Mercury
Splake All sizes        
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.

Dioxin
Mercury
PCBS - Polychlorinated biphenyls
PFOS - Perfluorooctane sulfanate


Status of the Fishery (as of 06/16/2014)

Pine Lake is a designated stream trout lake, managed for splake. The current goal is to maintain a splake population with a minimum gill net catch of 6.0 fish/set in spring assessments, with some fish larger than 16 inches present. This was the first of two population assessments scheduled in the 2009 lake management plan to determine whether stocking splake in higher numbers, while discontinuing rainbow trout stocking, would result in an increase in splake abundance with no reduction in growth rate.

Long range goals for splake in this lake were met in this assessment. Splake were relatively abundant, and a few larger fish were present. No rainbow trout from the last stocking (2010) remained. The splake gill net catch was near the upper end of the normal range for spring assessments of stream trout lakes in this area (5.25-12.00 fish/set), and exceeded catches seen in 1998, 2001, 2004, and 2008 in this lake. The mean weight for splake taken in gill nets was close to average for this area, and was similar to means seen in other recent assessments of this lake. Four stocked year classes contributed to the catch, and survival to three years of age was apparently fairly good. Splake growth had been somewhat slower than average; two-year-old fish reached a mean length of 8.5 inches at the end of their second year, compared to an area average of 9.5 inches. Competition from bluegill and white sucker may have adversely affected growth of young splake, perhaps because they may have been more dependent on invertebrate forage than older, larger fish.

This assessment was supposed to have produced a population estimate for splake, based on marking done in a 3 June 2014 special assessment. Unfortunately, too few splake were recaptured to allow estimates to be made with acceptable precision. At most we can say, with some confidence, that the lake supported at least 820 splake in June 2014, and that at least 45 of those fish were 12 or more inches in length.

Bluegill were fairly abundant in Pine Lake in 2014, and many were large enough to have provided some good fishing. Bluegill are not common in lakes in this area, and have been even scarcer in the area's stream trout lakes. The bluegill trap net catch in this assessment was high for this area, where catches normally do not exceed 3.3 fish/trap net set in the few lakes where the species is found. The 2014 catch in Pine Lake included fairly high numbers of fish larger than six inches, with fish as large as 8.9 inches taken. Several year classes, all naturally produced, contributed to the 2014 bluegill catch. Growth had been about average for this area, with fish reaching a mean length of 6.0 inches by the end of their fourth year.

White sucker were also fairly abundant in Pine Lake in 2014. The gill net catch was similar to the catch observed in the last (2008) assessment. The catch in trap nets was similarly high. Based on lengths of fish sampled, it appeared that several year classes contributed to the 2014 catch, including many small fish from one or two younger age classes.


For more information on this lake, contact:

Area Fisheries Supervisor
1356 Hwy 61 E
Grand Marais, MN 55604
Phone: (218) 387-3056
Internet: Grand Marais Fisheries
E-Mail: GrandMarais.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 C0324 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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