BioSonics new VisAcq AutoTrack software was the topic of a presentation at the recent Western Division American Fisheries Society Meeting held in Mazatlan, Mexico. The presentation, titled "Comparison of new software for rapid, automated processing of hydroacoustic data for fisheries related applications", was part of a symposium on salmonid life history and management. The paper describes an experiment to determine the relative efficiency and accuracy of VisAcq AutoTrack a