J. W. LaBaugh M.H. Freeberg D.C. Dowling W.W. Taylor 1985 <p>Bluegill (<i>Lepomis macrochirus</i>), pumpkinseed sunfish (<i>Lepomis gibbosus</i>), largemouth bass (<i>Micropterus salmoides</i>), yellow perch (<i>Perca flavescens</i>) rock bass (<i>Amploplites rupestris</i>), black crappie (<i>Pomozis nigromaculatus</i>), and northern pike (<i>Esox lucius</i>) were found in Williams Lake, Hubbard County, Minnesota, during a fishery survey of the lake in late August 1982. The most abundant fish were the bluegills. These fish live in the large littoral zone of the lake; this zone underlies 55% of the surface area of the lake. The most ubiquitous benthic invertebrate in the littoral zone (<i>amphipods</i>) and the most abundant benthic invertebrate (<i>chironomid larvae</i>) were major food sources for the bluegill. Other organisms found in the stomach contents of fish collected in this survey were zooplankton, gastropods, <i>Diptera</i> larvae, odonates, terrestrial insects, and other fish. Daphnia were the only zooplankters of a diverse plankton community that were found in stomach contents. The abundance of fish other than bluegill was typical for a system in which northern pike is the major predator.</p> application/pdf 10.3133/wri844145 en U.S. Geological Survey Fishery survey and related limnological conditions of Williams Lake, Hubbard County, Minnesota reports