Lake: Trout County: Vilas Year: 2019
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WISCONSIN DNR FISHERIES INFORMATION SHEET LAKE: TROUT COUNTY: VILAS YEAR: 2019 The Department of Natural Resources surveyed Trout Lake, Vilas County, from May 8 through May 24, to assess the status of the adult Walleye and Muskellunge populations. Trout Lake is a drainage lake with predominately sand and gravel substrates. It has a surface area of 3,816 acres, 17.9 miles of shoreline, and a maximum depth of 117 feet. Trout Lake's Walleye and Muskellunge populations are maintained primarily through stocking. Walleye Adult Walleye Population Distribution 1800 During six days of fyke netting, 2,019 adult Walleye were 1500 captured and marked with a fin clip. Four crews then 1200 sampled with electrofishing boats and captured 539 adult 900 Walleye. During electrofishing 22% (118 of 539) of Number captured Walleye bore the fin clip given during fyke 600 netting. Based on those results, Trout Lake was estimated 300 to contain 9,050 adult Walleye (2.4/acre). 0 7 9 11 13 15 17 19 21 23 25 27 29 An estimated 71% of adult Walleye were 15 inches or Length (Inches) longer. The largest Walleye we captured was a 30.2-inch * Note: Adult Walleye are defined as all sexable Walleye (regardless of length) female. and those of unknown sex > 15 inches in length. Smallmouth Bass Adult Smallmouth Bass Length Distribution 8 Smallmouth Bass were not a primary target during our survey of Trout Lake. Sampling occurred prior to peak 6 Smallmouth spawning. We captured 18 Smallmouth Bass eight inches or larger; 28% (five) were 14 inches or longer, 4 and the largest was 19.4 inches. Number 2 0 8 10 12 14 16 18 20 22 Length (Inches) Adult Largemouth Bass Length Distribution Largemouth Bass 10 Largemouth Bass were not a primary target during our survey of Trout Lake. Sampling occurred prior to peak 8 Largemouth spawning. We captured 26 Largemouth Bass 6 eight inches or larger; 81% were 14 inches or longer, and the largest was 18.4 inches. 4 Number 2 0 8 10 12 14 16 18 20 22 Length (Inches) Drafted: June 2019 By: Lawrence Eslinger Northern Pike Adult Northern Pike Length Distribution 15 From sampling between May 8 and May 13, 55 adult 12 Northern Pike were captured in Trout Lake. Of those, 9% (5 of 55) were greater than 26 inches long, and the 9 largest was 38.0 inches. 6 Number 3 0 * Note: Adult Northern Pike are defined as all sexable Northern Pike and those 9 13 17 21 25 29 33 37 41 of unknown sex > 12 inches in length. Length (Inches) Adult Muskellunge Length Distribution Muskellunge 5 During our fyke netting and electrofishing sampling of Trout 4 Lake, 21 adult Muskellunge were captured. Of those, 24% (5 of 21) were 40 inches or longer, with the largest being a 45.4- 3 inch female. Additionally, one juvenile, 20.1 inch Muskellunge was also captured. An adult Muskellunge population estimate 2 Number will be completed for Trout Lake with these data at a later 1 date. Trout Lake contains a very low-density Muskellunge population. 0 20 24 28 32 36 40 44 48 * Note: Adult Muskellunge are defined as all sexable Muskellunge and those of Length (Inches) unknown sex > 30 inches lin length. Other Species In addition to the gamefish mentioned above, 16 species of fish were captured during fyke netting and electrofishing sampling of Trout Lake. Species captured included: Lake Trout, Lake Whitefish, Cisco, Yellow Perch, Bluegill, Black Crappie, Pumpkinseed, Rock Bass, Black Bullhead, Burbot, Greater Redhorse, White Sucker, Creek Chub, Horneyhead Chub, Common Shiner, and Grass Pickerel. A creel survey will be conducted on Trout Lake throughout the 2019-20 fishing season. A creel clerk will count and interview anglers and examine their catch. The information gathered will be used to estimate angler fishing effort, catch and harvest. Table 1. General Fishing Regulations for Trout Lake, Vilas County, 2019-20. FISH SPECIES OPEN SEASON DAILY LIMIT MINIMUM LENGTH 15" min. length, 20-24" no harvest Walleye May 4 - March 1 3 slot, 1 fish over 24" allowed 1 in total Largemouth Bass May 4 - March 1 18 inches with SMB May 4 - June 14 (C&R) Smallmouth Bass 1 in total with LMB; 18 inches June 15 - March 1 (Harvest) harvest season only Muskellunge May 25 - Nov. 30 1 50 inches Northern Pike May 4 - March 1 5 None Lake Whitefish & Cisco (Lake Herring) Open all year 10 in combination None A brief summary of selected fishing regulations for Trout Lake is included above (Table 1). While the regulatory information provided was current at the time the surveys were conducted, it is not comprehensive and should not be used as a substitute for the current fishing regulation pamphlet. You may obtain a copy of current fishing regulations when you purchase your fishing license, or download a copy from our web site at: http://dnr.wi.gov/topic/fishing/regulations/ This spring survey report is available at: For answers to questions about fisheries http://dnr.wi.gov/topic/fishing/north/trtysprngsrvys.html. management activities and plans for Trout Lake, Creel survey results should be available by August 2020 at: Vilas County, contact: http://dnr.wi.gov/topic/fishing/north/trtycrlsrvys.html. For questions, contact: Eric Wegleitner, Fisheries Biologist Wisconsin Department of Natural Resources Lawrence Eslinger, Treaty Fisheries Biologist 8770 Highway J Wisconsin Department of Natural Resources Woodruff, WI 54568 8770 Highway J (715) 356-5211 Ext. 246 Woodruff, WI 54568 Email: [email protected] (715) 356-5211 Ext. 209 Email: [email protected] Drafted: June 2019 By: Lawrence Eslinger.