Island Lake (DOW# 11-0102; Lake Class 23) is a 358-acre lake located near Longville, MN. There is county owned public access on the southwest shore off of County Road 55. Island Lake has 5.8 miles of shoreline and a maximum depth of 45 feet. The lake is primarily managed for Northern Pike and Largemouth Bass and secondarily for Bluegill, Black Crappie, Walleye, and Yellow Perch. The DNR has classified Minnesota's lakes into 43 different classes based on physical, chemical and other characteristics. Island Lake is in Lake Class 23; lakes in this class are generally very clear, deep, have a low percentage of shallow water area, and have very irregularly shaped shoreline with many bays or points.
Island Lake has a game fish community that is dominated by Largemouth Bass, Bluegill, and Northern Pike. The average Largemouth Bass in the 2014 sample was just over 12 with fish up to 16 inches. Most Bluegills sampled were between 6 to 8 inches. Northern Pike numbers are similar as to past years, with Pike up to 30 inches present. Other fish species that anglers can expect to encounter include Black Crappie, Bowfin (Dogfish), Brown Bullhead, Pumpkinseed, Rock Bass, Walleye, Yellow Bullhead, and Yellow Perch.
People can have significant impacts on lakes and the fish populations they support. Harvest, lakeshore development, removal of shoreline vegetation, and introductions of invasive species can all adversely affect fish populations. Currently no aquatic invasive species (AIS) have been identified in Island Lake. AIS are moved from infested to non-infested waters by anglers, boaters, and lake shore owners and can adversely impact lakes and fish populations. To avoid spreading AIS, lake users are required to remove all aquatic plants or animals from their watercraft and drain all water from their boat before leaving the access. If you suspect an infestation of an invasive species in this lake, save a specimen and report it to a local natural resource office. Additional information on all of these topics can be found on the DNR website (www.dnr.state.mn.us) or by contacting the Walker Area Fisheries office.