Biologist reports logo Lake Wilhelm - Part 3

[Part II -- Part I]

Mercer County
May 19-20, 2004
Night Electro-fishing


Lake Wilhelm is a 1,740 acre reservoir located in M.K. Goddard State Park and State Game Lands 270 in northeast Mercer County. All fish species are managed under the standard regulations for Commonwealth Inland Waters.

As promised in Part II, we returned to Lake Wilhelm to sample the largemouth bass population by night electro-fishing. While dodging thunderstorms on the evenings of May 19th and 20th, we completed 5 electro-fishing runs totaling 2 hours and 58 minutes of electro-fishing time and captured 321 largemouth bass for a catch rate of 108.08 per hour. The largemouth bass ranged from 6 to 21 inches and of the total 321 bass, 113 were greater than 12 inches, 68 were greater than 15 inches and 12 were greater than 18 inches.

In 1997 we sampled the same 5 runs with a total electro-fishing time of 3 hours and 4 minutes and captured 336 largemouth bass for a catch rate of 109.46 per hour, almost identical to 2004.

Fisheries Biologist’s Aide Craig Lucas with two 21” largemouth bass
Fisheries Biologist’s Aide Craig Lucas with two 21” largemouth bass

Lake Wilhelm has been a consistent producer of both good numbers of bass and large bass. This is primarily due to the lake’s fertility, relatively shallow depth and abundant forage. Lake Wilhelm provides excellent habitat and conditions for largemouth bass production.

 
-- Tim Wilson, Area 2 Fisheries Technician

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