Food Habits of the Yellow Bass, Roccus mississippiensis, Clear Lake, Iowa, Summer 1962

Return of Clear Lake water levels to normal was accompanied by some increase in growth of yellow bass in 1962. Entomostracans, chironomids and Hyalella sp. were the principal foods of young yellow bass. Immature insects, principally Diptera, were the predominant foods of older bass with claclocera, Hyalella sp. and copepods next in importance. There was no increase in utilization of small fish as food. Yellow bass were more active and fed more at night than in daytime