Shrimp Sounds Lure Oysters to Clean Toxic Waters

A pioneering program in South Australia is leveraging the sound of snapping shrimp to revitalize native oyster reefs and combat harmful algal blooms. Underwater speakers will broadcast shrimp sounds, enticing microscopic oyster spat to settle on donated oyster shells and limestone structures. These efforts aim to rebuild the oyster reefs, which were historically decimated by dredging, and are vital for filtering large volumes of ocean water.

The initiative also calls upon the public to contribute by donating their used oyster shells. These shells will serve as a biodegradable substrate for new oyster growth, fostering the development of natural reefs. This community-driven approach not only aids in environmental restoration but also offers a tangible way for residents to address ecoanxiety stemming from recent devastating algal blooms.