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WISCONSIN DNR

FISHERIES INFORMATION SHEET

LAKE: MANSON COUNTY: ONEIDA YEAR: 2006

The Department of Natural Resources surveyed Manson Lake, Oneida County, from April 13 through J une 8, 2006, todetermine the health of its fishery. The survey was designed to take a comprehensive look at the lake's fishery. MansonLake is a soft water drainage lake with predominantly sand substrate and substantial areas of rubble, boulders and gravel.Manson Lake has a low-density walleye population. It has a surface area of 236 acres, 3.6 miles of shoreline and amaximum depth of 54 feet.

Largemouth Bass

We captured 164 largemouth bass, 8 inches or larger,during our fyke netting and electro-fishing sampling ofManson Lake. Approximately 20% (33 of 164) of thoselargemouth were 14 inches long or larger. The biggestlargemouth bass we captured was 18.4 inches long.

Walleye

We conducted a mark-recapture survey of Manson Lake'sadult walleye population from April 13-16, 2006. Wecaptured and marked (fin clipped) 170 adult walleye in fourdays of fyke netting. A crew sampled Manson Lake withan electro-fishing boat on April 16 and captured 21 adultwalleye. Nearly half (10 of 21) of those walleye bore thefin clip given during fyke netting.

Adul t Walley e Popul ation Estim ate

Length Frequency Distribution

Manson Lake, Oneida County, Spring 2006

0

40

80

120

7 9 11 13 15 17 19 21 23 25 27 29

Length (Inches)

Number

Smallmouth Bass

We captured 213 smallmouth bass, 8 inches or larger,during our fyke netting and electro-fishing sampling ofManson Lake. Approximately 8% (16 of 213) of thosesmallmouth were 14 inches long or larger. The biggestsmallmouth bass we captured was 20.2 inches long.

Smallmouth Bass Length Frequency Distribution

Manson Lake, Oneida County

Spring 2006 Survey

0

22

44

66

8 10 12 14 16 18 20 22 24

Length (Inches)

Number

Figure 1. Length frequency distribution of 298 adult walleye estimated to be in Manson

Lake, Oneida County, based on a spring 2006 survey.

Figure 2. Length frequency distribution of 213 smallmouth bass, 8" or larger, captured

during a survey of Manson Lake, Oneida County, in a spring 2006 survey.

Based on those results, we estimated that Manson Lake ishome to 298 adult walleye (1.3 /acre). Approximately 25%(73 0f 298) of adult walleye were 15 inches long or larger.

The largest walleye we captured was a 25.7-inch female.

Largemouth Bass Length Frequency Distribution

Manson Lake, Oneida County

Spring 2006 Survey

0

10

20

30

8 10 12 14 16 18 20 22 24

Length (Inches)

Number

Figure 3. Length frequency distribution of 164 largemouth bass, 8" or larger, captured

during a fisheries survey of Manson Lake, Oneida County, in spring 2006.

* Note: Adult walleye are defined as all sexable walleye and walleye of

unknown sex >15 inches long.

Drafted: June 7, 2006By: Mike Coshun File: Manson_Spring_Summary_2006

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FISH SPECIES OPEN SEASON DAILY LIMIT

Walleye May 6 - March 4 3

Largemouth and Smallmouth BassNone

5 in total

Muskellunge May 27 - Nov. 30 1

Northern Pike May 6 - March 4 5

http://www.dnr.wi.gov/fish/regulations/

May 6 - June 16 (C&R)

J une 17 - March 4 (Harvest)

34 inches

None

MINIMUM LENGTH

14 inches

15 inches

Northern Pike

We captured 32 adult northern pike in fyke nets fishedin Manson Lake from April 13-16, 2006. Approximately84% (27 of 32) of adult northern pike we captured wereless than 26 inches long. The largest northern pike wecaptured was a 29.7-inch female.

Muskellunge

We captured 12 adult muskellunge during our fyke nettingand electro-fishing sampling of Manson Lake. Two-thirdsof the adult muskellunge (8 of 12) we captured were 34inches long or larger. The largest muskellunge we capturedwas a 40-inch female.

Other Species

We captured 10 species of fish in our fyke netting and electro-fishing sampling of Manson Lake in addition to the gamefish mentioned above. Bluegill, rock bass and yellow perch were the most common species in our fyke net catches. Wecaught moderate numbers of black crappie and pumpkinseed. We also captured black bullhead, golden shiner, greensunfish, white sucker and yellow bullhead. Young-of-year walleye will be sampled in fall 2006.

We are also conducting a creel (angler harvest) survey on Manson Lake this year. Creel clerk David Stahmer will countand interview anglers and examine their catch throughout the 2006 open-water fishing season.

Table 1. General Fishin g Regulations f or Manson Lake, Oneida County, 2006

A brief summary of selected fishing regulations for Manson Lake is included above (Table 1). While the regulatoryinformation provided was current at the time the surveys were conducted, it is not comprehensive and should not beused as a substitute for the current fishing regulation pamphlet. You may obtain a copy of current fishing regulationswhen you purchase your fishing license, or download a copy from our web site at:

This report is interim only; data and findings should notbe considered final. Results of creel surveys should beavailable by J une 2007. If you are interested in asummary of the creel survey or want an update on thisyears fyke netting and electro-fishing survey results,contact:

Mike Coshun, Treaty Fisheries BiologistWisconsin Department of Natural Resources8770 Highway JWoodruff, WI 54568(715) 358-9209Email: Michael.Coshun@Wisconsin.gov

Adul t Nort hern Pi ke Leng th Freq uency Distr ibut ion

Manson Lake, Oneida County

Spring 2006 Fyke Net Catch

0

2

4

6

9 13 17 21 25 29 33 37 41 45 49

Length (Inches)

Number

Figure 4. Length frequency distribution of 32 adult northern pike captured in fyke nets

during a fisheries survey of Manson Lake, Oneida County, in spring 2006.

Adul t Musk ellun ge Leng th Freq uency Distr ibut ion

Manson Lake, Oneida County

Spring 2006 Survey

0

2

4

6

20 24 28 32 36 40 44 48

Length (Inches)

Number

Figure 5. Length frequency distribution of 12 adult muskellunge captured during a

fisheries survey of Manson Lake, Oneida County, in spring 2006.

For answers to questions about fisheries

management activities and plans for Manson Lake,Oneida County, contact:

J ohn Kubisiak, Fisheries BiologistWisconsin Department of Natural Resources107 Sutliff AvenueRhinelander, WI 54501(715) 365-8919Email: J ohnF1.Kubisiak@Wisconsin.gov

* Note: Adult northern pike are defined as all sexable northern pike and

northern pike of unknown sex >12 inches long.

* Note: Adult muskellunge are defined as all sexable muskellunge and

muskellunge of unknown sex >20 inches long.

Drafted: June 7, 2006By: Mike Coshun File: Manson_Spring_Summary_2006