Walleye

In Fishery: Walleye
Walleye
Illustration of a walleye
Adult density (2025)3.29 adults/acre
Males, length at 90% maturity (2025)12.8 in
Females, length at 90% maturity (2025)18.2 in
Current regulationMaximum of 3 per day, no minimum size, only 1 over 14”
Proposed for 202715” minimum, 20-24” protected slot, only 1 over 24”, 3 daily
Harvest, 2014, 2018 and 2023 combinedAngling 82%, Tribal 18%

Walleye story

  1. The reason I started the Walleye special interest group was because I felt my personal annual walleye catch was declining. I needed to find out if it was my imagination or true
  2. The walleye population graph shows a decline in population over the years. So my hunch was true.
  3. The harvest graph shows the annual tribal harvest every year. The tribe has the legal right of half the safe harvest. The hook and line creel harvest estimates in 2014, 2018, 2023 show a harvest significantly higher than the tribal harvest. For safe harvest, they should be the same. From the 3 years listed above, the tribal harvest is less than 20% of the total annually. The hook and line are greater than 80% of the harvest. This is way too high.
  4. On Squirrel Lake, 90% of male walleye can reproduce at a length of 13 inches. 90% of female walleye can reproduce at 18 inches.
  5. The hook and line regulation on Squirrel Lake for the last 40 years is a maximum of 3 walleyes total of 14 inches and below with 1 walleye over 14 inches. This regulation promotes the over harvest of young walleyes not yet to reproductive length. It also drove additional external hook and line fishermen to our lake because they could easily catch and keep small walleyes.
  6. The ceded territory regulation is a maximum of 3 walleye between 15 inches to 20 inches with 1 over 24 inches. This will allow more walleye to at least reproduce 1 season before harvest. It will also align Squirrel Lake with all other ceded territory lakes.
  7. The regulation change is in progress for the 2027 season. DNR Fisheries Biologist Nathan Lederman is working through the approval process.
  8. Many people blame tribal spearing for the decline in the Squirrel Lake walleye population, but that is not true. It is the current hook and line regulation that has been in place for over 40 years that is causing the over harvest of small walleyes not yet to reproductive length.
  9. Squirrel Lake has excellent walleye natural reproduction. Up to 73% of our shoreline is good for walleye spawning. This is one of the very best in Oneida County.
  10. There are other things that contribute to the decline in the walleye population, like global warming, disruption to spawning habitat, lake shore clearing, etc. We have two projects that will help protect spawning habitat - the placement of no wake buoys around the two best spawning areas and shoreline improvement to better support our fishery.

Bryan Haack, Squirrel Lake resident

Graphs: Population · Harvest

Population

  • Squirrel Lake is in the top 5 naturally producing walleye lakes in Oneida County.

Source: Walleye Special Interest Group Update, June 2026

Line chart of Squirrel Lake adult walleye density (adults/acre) by year, 1986 to 2025, with a shaded band and a dashed line at 3.00 labeled Ceded Territory baseline for naturally reproducing lakes.
Squirrel Lake Adult Walleye Abundance, 1986-2025. GLIFWC, June 17, 2026
  • This graph shows the decline in walleye population from 1985 to 2025
  • It is normal to have swings in population from year to year
  • We do not want to go below the ceded territory baseline
  • The trend shows confirmation of the perception of walleye population decline.
  • We also discussed the year 2019 and that variations are common.

Source: Walleye Special Interest Group Update, June 2026

Key Takeaways

  • Squirrel Lake is a popular fishery with persistent angling opportunity
  • Recruitment and adult density have declined
  • Harvest-oriented regulations place higher pressure on immature fish
  • Angling regulation change and habitat improvements offer greatest "bang-for-the-buck" for current walleye population

Source: GLIFWC, June 17, 2026

Young fish

Scatter plot of juvenile walleye catch per mile (CPE, n/mile) by year, 1985 to 2025, for the age-0 (blue) and age-1 (orange) cohorts, each with a straight trend line.
Squirrel Lake Juvenile Walleye Catch Rates, 1985-2025. GLIFWC, June 17, 2026

See also: Recruitment and Gamefish Surveys

Size and maturity

Six histograms of walleye count by length (in) for 2017, 2018, 2019, 2022, 2023 and 2025, each marked with its median length and adults per acre.
Squirrel Lake Walleye Size Structure, 2017-2025. GLIFWC, June 17, 2026
Year Median length Adults/acre
2017 13” 3.48
2018 14” 3.21
2019 15” 5.47
2022 13” 3.37
2023 13” 3.01
2025 13” 3.29

Source: GLIFWC, June 17, 2026

Proportion of male walleye mature by length (in), Squirrel Lake, 2025: observed points and a fitted S-shaped curve.
ONEIDA Co., SQUIRREL L Males 2025 Length at 90% Maturity = 12.8. GLIFWC, June 17, 2026
Proportion of female walleye mature by length (in), Squirrel Lake, 2025: observed points and a fitted S-shaped curve.
ONEIDA Co., SQUIRREL L Females 2025 Length at 90% Maturity = 18.2. GLIFWC, June 17, 2026
  • 90% of males mature by 13” and 90% of females mature by 18”

Source: Walleye Special Interest Group Update, June 2026

Harvest

Stacked bar chart of Squirrel Lake walleye harvest rate (fish/acre) by year, 1985 to 2025: tribal (orange) in every year, angling (blue) in 1992, 2014, 2018 and 2023.
Squirrel Lake Walleye Harvest, 1985-2025. GLIFWC, June 17, 2026
  • I used the combined Angling and Tribal years of 2014, 2018 and 2023
  • The Angling harvest is 82% of the total
  • The Tribal harvest is 18% of the total
  • We need to investigate why the Angling harvest is so high
  • The next walleye census is scheduled for 2027

Source: Walleye Special Interest Group Update, June 2026

Stacked bar chart of total Ceded Territory walleye harvest (n) by year, 1985 to 2025, split into angling (blue) and tribal (orange).
Ceded Territory Walleye Harvest, 1985-2025. GLIFWC, June 17, 2026
  • This graph shows the entire ceded territory harvest split between tribal and angling.
  • It was used as confirmation that the Squirrel Lake results look similar

Source: Walleye Special Interest Group Update, June 2026

Myth Number 2 – Tribal spearing is the cause of the Squirrel Lake walleye population decline.

This is not true. Tribal spearing accounts for less than 20% of the annual walleye harvest on Squirrel Lake and across the ceded territory. … For Squirrel Lake, the current walleye regulations encourage over harvesting.

Source: Walleye Special Interest Group Update, June 2026

Regulation

Current regulation Proposed for 2027
Daily limit
Maximum of 3 per day
3 daily
Minimum length
No minimum size
15” minimum length limit
Protected slot
–
20-24” protected slot
Only 1 over
14”
24”

Sources: current regulation, Walleye Special Interest Group Update, June 2026; proposed for 2027, Proposed Walleye Regulation Changes for 2027.

  • The current walleye regulation is driving over harvest walleyes
  • The current walleye regulation encourages external lake traffic to keep small walleyes
  • As recommended by Nathan and Brandon, allow walleyes to spawn once before harvesting
  • The ceded territory walleye regulation allows more walleyes to reach reproductive length before being harvested.

Source: Walleye Special Interest Group Update, June 2026

See also: Walleye Regulation Change for 2027

Spawning habitat

  • Nathan and Brandon are doing a complete shoreline assessment to identify prime walleye spawning sites
  • They will come back with suggestions to improve these sites
  • This happened this morning (June 25th) with two lake members assisting (Wayne Krantz and Glen Isensee)
  • Nathan and Brandon may have other suggestions in the future

Source: Walleye Special Interest Group Update, June 2026

See also: Shoreline, No Wake Buoys Protecting Prime Walleye Spawning Sites, Shoreline Habitat Education and Improvement

Stocking and hatchery

Stocking

  • Nathan suggested we don’t pursue stocking because the results have been poor and it is a costly alternative.

Portable Fish Hatchery

  • Two times we tried to schedule Al Luke from Headwaters Hatchery and he cancelled both times
  • The mobile hatchery is not working on the Minocqua chain. Millions of eggs have been hatched but survival has been very poor.
  • The results of the mobile hatcheries are low, the expense and labor are high
  • The Squirrel Lake Walleye Special Interest Group voted not to pursue the mobile hatchery at this time

Source: Walleye Special Interest Group Update, June 2026

Contributing factors

There are many contributing factors to the walleye population decline (e.g. shoreline development, global warming, increased bass population, Northern Pike predation, etc., etc.). We will continue to investigate other walleye population initiatives.

Source: Walleye Special Interest Group Update, June 2026

See also: Bass, Shoreline

Tribal harvest management

Spearing and Netting Overview

  • Harvesters must possess tribal ID and permit while spearing or netting
  • Permits generally issued first-come, first-serve at tribal registration station or boat landing
  • Bag limits per permit established by Tribe
  • Creel clerks must be present at the boat landing for either activity to take place
  • 20” maximum; one fish between 20-24”, and one of any size per permit
  • Creel teams count, measure, and determine sex of catch
  • Unused permits must be returned to designated monitoring location

Source: GLIFWC, June 17, 2026

Safe Harvest

  • Safe harvest is meant to be conservative and is based on population data
  • Tribal quotas are a percentage of safe harvest
  • Tribal harvest is fully monitored when spearing and netting occur
  • Each fish is counted and quotas tracked
  • Safe harvest in Wisconsin is derived such that combined tribal and angling exploitation should not exceed 35% of adult stock
  • Tribes or GLIFWC Biological Services Director may close a lake to tribal harvest when necessary

Source: GLIFWC, June 17, 2026

See also: Great Lakes Indian Fish & Wildlife Commission

Safe handling of walleye

Illustrated flyer titled Walleye in our Hands, with release tips under Terminal Tackle, Environmental Conditions and Handling, and agency logos along the bottom.
Walleye in our Hands. Wisconsin DNR, August 26, 2026

Terminal tackle

  • Heavily weighted jigs and Artificial baits reduce deep hooking and mortality
  • PRO TIP: Barbless hooks (or pinched barbs) reduce handling time and make hooks easier to remove

Environmental conditions

  • Fishing during cooler (<68°F) seasons and times of day helps reduce mortality
  • Target warmwater fish during the hottest months
  • Fishing at depths less than 25ft helps avoid barotrauma (bulging eyes, bloated abdomen) and increases survival

Handling

  • Minimize fight time by using appropriately sized rods and line - consult a local bait shop
  • Keep fish wet - minimizing air exposure increases survival
  • Use rubber landing nets to reduce injuries and handling time
  • do not place fingers in gills
  • use clean, wet hands
  • support body weight
  • Avoid lip gripping devices
  • Cut the line and release fish immediately if deeply hooked

Source: Wisconsin DNR, August 26, 2026

See also: Walleye in our Hands, Lake Temperature Monitor

Report tagged fish

Report Your Tagged Fish! www.glifwc.org/report-tagged-fish

Source: GLIFWC, June 17, 2026

See also: Report tagged fish

Walleye Special Interest Group

  • We felt the walleye fishery was declining and didn’t want the population to decline to the point of no return.
  • We now have 108 members on the Squirrel Lake Walleye Initiative Facebook group site. Our membership includes lake residents, non-residents, external lake users, a DNR fisheries biologist, a GLIFWC fisheries biologist and anyone who requested to join.

Source: Walleye Special Interest Group Update, June 2026

Resources