What we do

We are cleaning our oceans by restoring oyster reefs

What happened to oyster reefs?

Oyster reefs used to cover 20-30% of the North Sea . However, 150 years ago oysters were a popular cheap source of protein, and were eaten to virtual extinction without realising the damage this would cause on the environment.

Oysters are amazing creatures. They play a key role in their ecosystems, protect our shores from erosion, generate biodiversity, remove excess nitrogen and filter the water.

We need to bring oysters back to restore ocean health.

Our vision

We exist to help our oceans before it's too late

The fastest way to restore lost oyster reefs

Our team of outstanding scientists has researched the best possible way to help oysters, and developed a tool-set to revolutionise marine restoration, making it meaningful, cost-effective and scalable.

We’ve run lab and field tests in The Netherlands and Denmark to prove the efficiency of our tool-set with successful results.

A helping hand: The Mother Reef

Biodegradable. Climate Friendly. Low Cost.

The currently deserted sea floor is not a suitable place for oysters to live. They would sink in the sand and die.

So we created the Mother Reef.

These bricks will be the base that will cover the deserted sea floor. We worked out the best conditions to help baby oysters attach to the Mother Reefs and release them into the ocean back to where they used to be, and become home to millions of other creatures too.

We partner with local fishermen to build the reefs

Our projects can be deployed anywhere in the world where oyster restoration is needed. We partner with local fishing communities and provide them with a new revenue stream and type of work.

Fishermen will use their boats, equipment and knowledge of the water to plant the Mother Reefs into the ocean. They will also benefit from the improvement of the ocean health and biodiversity.

Marine restoration at a scale never seen before

Thanks to the Mother Reef, the cost of restoring a reef will be significantly low at 0,25€ per oyster, compared to other projects with a cost varying between 20 to 1.000€ per oyster. Now marine restoration can finally reach large scale.

To fund more oyster restoration projects, we sell the ecosystem services that oyster reefs provide to businesses that want to become more sustainable and manage their environmental footprint. This way, for every reef we build, we can fund the next three, and so on.

Partners and supporters

Read our latest blogs and articles

Shifting Baselines: A Hidden Challenge in Marine Restoration

Marine regeneration is an essential mission aimed at restoring our oceans back into the productive and healthy ecosystems they once were. Among the many challenges faced by conservationists, one concept that often quietly impacts efforts is the ‘shifting baseline syndrome’, first considered by fisheries scientist Daniel Pauly. This term refers to a phenomenon where each generation of scientists and ocean users accepts the condition of the environment they first encounter as the norm, or baseline, even though this baseline may have already been significantly degraded compared to previous generations.

Read More »

Unveiling bacterial secrets of oyster growth: Four questions for Dr. Natacha

tarting off her career on gut bacteria research in Cape Town, Dr. Natacha Juste-Poinapen took a fascinating path applying her chemical engineering expertise to the marine environment, a place close to her heart, having grown up near the ocean. As the first hire at Oyster Heaven, Natacha focuses on enhancing oyster regeneration and evaluating restoration site suitability by studying the microbiological components of oyster reefs. She collaborates with DTU Aqua in Denmark, and Deltares and NIOZ in the Netherlands, bringing unique insights to our ambitious goal of restoring historic oyster reefs.

Read More »

Time to meet Oyster Heaven’s team: Four questions for our founder, George

As we work hard to implement our approach to oyster reef restoration in the Netherlands and the UK, we are also filling up our project pipeline to initiate even more reefs to steadily bring back the lost oyster reefs in our European waters and beyond. With our workload growing, our team expanding, and our outreach broadening, it’s time to introduce the dedicated individuals who’ve been working tirelessly behind the scenes. Let’s begin with our founder, George, the visionary driving force behind it all…

Read More »

Clay: A Time-Tested Solution for Oyster Restoration

In the world of marine conservation, the search for effective materials to aid restoration is a never-ending exploration. For oyster reefs specifically, the need for a suitable substrate is the key in achieving reef revitalisation. Among the many materials, clay stands out as a tested solution which has led us at Oyster Heaven to use it as the preferred material to kick start large-scale oyster reefs.

Read More »

Purina Europe launches its first Ocean Restoration Programme, aiming to restore 1,500 hectares of marine habitats by 2030

28 February 2024, ROTTERDAM: The ocean is essential for all life on Earth. However, as a result of climate change and human activities, ocean health is declining at an alarming rate, putting all marine life under threat. To ensure a sustainable future, our oceans must be protected and preserved. That is why Nestlé Purina PetCare Europe is launching its first Ocean Restoration Programme, to help tackle marine biodiversity loss in Europe.

Read More »

The connection between oysters, seagrass and seaweed

Every ecosystem is made up of different species interacting with each other in different ways. We are quite familiar with the predator/prey relationship that ensures the balance in the food web as a means of protection. A good example is the key role of sharks in controlling the number of sea turtles that could otherwise impact seagrass on which they feed.

Read More »

Join our newsletter and become part of the solution.