Oyster reefs can reduce wave energy by up to 76%.

Reefs can reduce shoreline retreat by up to 40%.

Natural infrastructure for protecting coastlines

Oyster reefs act as natural infrastructure, . By forming dense, hard reef structures just offshore, oysters help slow wave energy, stabilise sediments and reduce the force of incoming tides - protecting shorelines from erosion, wave impact and storm surges and delivering cost-effective, regenerative protection.

As waves pass over and through oyster reef structures, their energy is reduced. The rough surface and physical complexity of the reef causes waves to break and lose momentum before reaching shore.

Erosion Control & Sediment Stabilization

Oyster reefs trap sediments and buffer currents, helping to reduce coastal erosion and maintain intertidal habitats like mudflats and saltmarshes.

Climate Adaptation: A Living Solution

Unlike traditional seawalls, reefs grow over time and adapt naturally to sea-level rise, maintaining their protective function. With sea-level rise and intensifying storms, the demand for climate-resilient infrastructure is growing. Oyster reefs offer a scalable, low-carbon alternative to grey infrastructure.

Benefits at a Glance:

• Wave Attenuation: Breaks and reduces incoming wave energy

• Shoreline Stabilization: Prevents erosion by buffering waves

• Sediment Accumulation: Traps and binds fine particles

• Storm Surge Reduction: Lessens coastal flooding risk

• Climate Adaptation: Grows over time, keeping pace with rising seas