Fisheries

Fisheries

UPDATE: BOY RIVER EGG-TAKE 2017

The MN DNR egg-take operations at the Boy River trap occurred from about April 11-17. A total of 1,022 males and 573 females were collected and 393 females were stripped of their eggs. A total of 202 quarts of walleye eggs were collected. The walleye run in the Boy River appeared not to have peaked yet, but the DNR had reached its egg take goal and the trap was closed.

 

***HELP NEEDED FROM ALL ANGLERS***

ANGLERS ARE ASKED TO PLEASE REPORT THE TAG NUMBER, LOCATION AND DATE CAUGHT, LENGTH, AND WHETHER THE FISH WAS KEPT OR RELEASED VIA THEIR INTERACTIVE WEB PAGE WHICH CAN BE FOUND BY SEARCHING “MNDNR TAGGED FISH” ON ANY SEARCH ENGINE; TAG REPORTS CAN ALSO BE SUBMITTED BY EMAIL TO: walker.fisheries@state.mn.us). In Longville the One Stop, Full Stringer Bait & Tackle (formerly Longville Bait), and the Mule Lake Store will have tag report booklets.

2017 Updates – Fry Stocking Study / Woman Lake Chain Management Plan

Fry Stocking Study – The 8-year walleye fry stocking study in Woman Lake concluded in 2015. The OTC marking of stocked fry has ended for now. Annual sampling by the DNR with gill nets and electrofishing gear will continue to be utilized to collect information on the walleye population. Preliminary trends for Woman Lake indicate that lower total fry densities tend to result in better first year growth and survival of fry, which can translate into an average or above average year class.

During the study, fry stocking rates averaged 1,029 per littoral acre and wild fry production averaged 369 per littoral acre. Thus, the total fry density averaged 1,399 fry per littoral acre. From 2008-2015 stocked fry in Woman Lake comprised an average of 73% of those surviving to young-of-the-year. From 2008-14, the hatch rate of wild fry in Woman Lake averaged 0.42%. The wild fry hatch rate in Leech Lake averaged 0.38% from 2005-14.

 Management Plan – During the fall and winter of 2015-16 representatives from the CGWLAA, the Longville Chamber of Commerce and a local fishing guide and educator met with the DNR to revise the Woman Lake Management Plan. The revised plan applies to all three lakes in the chain for the next 10 years. All three lakes will now be stocked with walleye fry annually. Beginning in 2016 fall gill net assessments will be conducted in Woman Lake every 2 years, and in both Child and Girl Lake every 4 years. Walleye tagging has been completed in 2016 with approximately 3,200 adult walleyes tagged by the DNR and released to conduct a population study. A creel census will also be conducted on Woman Lake in 2016. Long range goals were established for each species and lake. Walleye fry will be stocked at a rate of 500 per littoral acre in each lake. Child Lake has 158 littoral acres and Woman and Girl Lakes have 1,953 and 272, respectively. In 2017 Child Lake received 79,000 unmarked walleye fry, Woman 976,500 fry and Girl 136,000 fry.

2016 Creel Census – A creel survey was conducted by the MN DNR on the Woman Chain of lakes from May 14 to September 30, 2016 to evaluate fishing pressure, catch and harvest. The estimated fishing pressure on the chain was 114,439 angler-hours (18.25 angler-hours per acre); of which, 82% of the fishing pressure was exerted on Woman Lake. In total, 164,501 fish were caught (26.24 fish per acre), of which 36,539 (5.83 fish per acre) were harvested. Sunfish (i.e., Bluegill and Pumpkinseed Sunfish) were the most abundant fish caught (52,999 fish or 8.45 fish per acre); however, walleye produced the highest yield (7,555 pounds or 1.21 pounds per acre). A total of 9,842 walleye were caught. In addition, 38,872 yellow perch were caught, 17,935 Black crappie, 13,694 northern pike, 9,167 largemouth bass and 8,512 smallmouth bass. Comparison of creel census statistics from Woman Lake with previous surveys (1996, 1997, 2005 and 2006) indicated angling pressure has increased and that catch and harvest rates have remained similar through time.