Results of Selective Shad Treatments in Six Central Florida Lakes

The use of rotenone in an attempt to reduce the number of gizzard and threadfin shad in several Central Florida lakes has been intensified during the past two years·. Descriptions and procedures employed in selective shad treatments of Lake Tarpon, Lake Seminole, Lake Tsala Apopka, Alligator Lake, Lake Julianna and Scott Lake are discussed in detail. Creel census data was not available, therefore, fish population samples collected over a two year period were compared to determine if a change has occurred in the species composition of the treated water areas.