The Green Ocean Foundation is a not-for-profit community-based organisation that manages and operates marine environmental projects. Our aim is to combat climate change by sequestering carbon and rebuild lost biodiversity in our seas around the Irish coast.

Dublin Bay

After an absence of 200 years, Green Ocean reintroduced native oysters into 3 locations around Dublin Bay in 2023. Oysters are natural “climate champions”, improving water quality and marine biodiversity. Using innovative “oyster gardening” techniques, oysters are suspended in baskets from marina walkways at multiple locations around Dublin Bay. These oysters naturally filter the water, helping to reduce excess nutrients and pollutants. Their presence also supports biodiversity by encouraging the growth of seagrass and seaweed, which provide vital spawning grounds for fish and their predators as well as being a important carbon sink by sequestering carbon. Following the successful completion of phase 1, which saw strong oyster growth and reproduction, over the past year, the project is entering phase 2 in Autumn 2024. This phase is expanding the initiative to 120 oyster baskets across six locations in the Bay.

Clew Bay

Working with Clew Bay Oyster Co-op, we are restoring the ancient fishing grounds in Clew Bay which are now designated as Special Areas of Conservation. Our restoration work involves laying a thin substrate of old shell on the sea floor ahead of oyster spawning in July / August every year to promote oyster larvae settlement. These larvae or spat grow to maturity in 3 – 4 years forming reefs that support the spread of seagrass and provide shelter for fish to spawn. Having commenced this project in 2022, 12 hectares have been restored with another 168 hectares to go! 

Community Engagement

Green Ocean also engages volunteers in hands-on restoration activities, such as maintaining oyster baskets and monitoring oyster health. These volunteer opportunities provide education and awareness about the importance of marine conservation, while allowing individuals to contribute directly to environmental restoration efforts. Green Ocean welcomes interest from businesses and communities who would like to get involved and offer sponsorship and support.