Diagram of the original SUPSY design

Diagram of the original SUPSY design at the Alabama Aquatic Biodiversity Center (Marion, Alabama) showing the direction of water flow. An air lift bails water out of the bucket, forcing water to upwell through the culture container. The brick anchor keeps the SUPSY in place while flotation keeps the system off the bottom of the pond. Diagram courtesy of Paul Johnson (Alabama Aquatic Biodiversity Center) and adapted by Kristin Simanek, USFWS.