The most popular game fish are crappie, largemouth bass, and brown bullhead. A self-sustaining population of brown bullhead catfish resides in the lake. Fish found within Lake Lila include smallmouth bass, lake trout, yellow perch, and brown bullhead. The native range of the brown bullhead is in the Atlantic and Gulf Slope drainages. There are rainbow trout, coastal cutthroat trout, kokanee, crappie, and brown bullhead in the lake. Lake Jean is home to brook trout, brown trout, brown bullhead, and yellow bullhead. Pumpkinseeds dominate the fishery, although white perch and brown bullhead are very common. Fish species present in the lake are white sucker, brown bullhead, and yellow perch. The brown bullhead is important as a clan symbol of the Ojibwe people. Brown bullhead, flatnose minnow, and pumpkinseed were found to be rare. Some species located in this lake are the brown bullhead, largemouth bass, carp, and bluegill.