“Solving Challenges in Oyster Farming with a New Eco-Friendly and Durable Float”

Development is underway on expanded polystyrene (EPS) floats used to keep oyster farming rafts afloat on the sea surface. Oyster farming has faced environmental issues due to the outflow of floats and the scattering of their fragments into the ocean. The newly developed floats have adjusted expansion ratios and boast 1.2 times greater compression strength compared to conventional models.

In addition, a reinforced protective cover significantly improves durability, extending the expected lifespan from about 3 years to 5–8 years, and enhancing resistance to deterioration. Each new float is expected to last approximately 7.5 years—roughly twice as long as conventional ones—allowing them to be used for up to five oyster farming cycles.

IC tags are embedded in the floats to encourage self-management. The outflow of large floats is often attributed to poor management during installation and storage, highlighting the need for producers to improve handling practices and raise awareness.

With a focus on both environmental sustainability and durability, these new floats are expected to support more sustainable marine practices while also reducing the labor and cost burdens on oyster farming operations.