Dr. Ranhofer’s current research is a blend of both laboratory and fieldwork and focuses on the distribution, abundance, and use of the Asian clam, Corbicula fluminea, as a bioremediation tool for improving water quality in eutrophic systems by reducing nutrient concentrations and controlling phytoplankton blooms. The addition of excess nutrients to an ecosystem can have devastating effects on water quality, including eutrophication, toxic phytoplankton blooms, shifts in food webs, fish kills, and periods of hypoxia/anoxia. When phytoplankton die, their decomposition reduces dissolved oxygen (DO) availability in the water; in some cases causing hypoxic (DO < 2-3 ppm) or anoxic (DO < 2ppm) conditions. Benthic suspension-feeding bivalves (such as the C. fluminea) act as natural water cleaners by filtering out plankton and other particulate matter from the water. This ability benefits the ecosystem by reducing turbidity, preventing unwanted algal blooms, and sequestering nutrients by burial of nitrogen and phosphorous in the form of biodeposits.