Plankton net collections were made from the J. W. Frisz Memorial Lagoon in the Shades State Park, Montgomery County, at various intervals of time from June 12, 1951 until April 19, 1952. Most of the collections were made by jack McCormick, several by Jay D. Gilliland of Waveland, Indiana, and a few by W. A. Daily.

The thirty-seven year old artificial lagoon has an area of approximately three acres and a maximum depth of eighteen feet. It has been well stocked with game fish, but higher aquatic plants are scarce.