Alan Katzenmeyer, chief of Aquatic Ecology and Invasive Species Branch at the U.S. Army Engineer Research and Development Center (ERDC) Environmental Laboratory, addresses the students in a classroom at Alcorn State University. Katzenmeyer was one of several participants in ERDC Day on February 23, 2022. The event, which featured a mini career fair, exposed Alcorn students to ERDC career opportunities.