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 realizing 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

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 »

Optimising Oyster Restoration With Science and Research

To optimise how oyster restoration can be done, we’ve looked into what worked so far and what didn’t succeed and conducted laboratory and field testing.

After two years of dedicated work, we’ve identified these are the key factors to optimise oyster restoration.

Read More »

Synergies Between Oyster Restoration and Aquaculture: A Win-Win for the Oceans

Oyster restoration initiatives play a crucial role in revitalising marine ecosystems, but their benefits extend beyond environmental conservation. Restoration projects are proving to be a boon for oyster farming and aquaculture. The interplay between restoration efforts and aquaculture creates a harmonious relationship that fosters sustainability, provides food and supports livelihoods of coastal communities.

Read More »

Oyster Reef Restoration as a Sustainable Solution to Mitigate CO2 Emissions from Marine Dredging​

Marine dredging, the process of removing sediment from the ocean floor, is a common practice that causes significant carbon dioxide (CO2) emissions, contributing to the global climate crisis.

In some cases, marine dredging may be necessary, for example, for maintaining and deepening navigation channels and harbours, or to protect shorelines from erosion caused by waves, currents, and storms.

Read More »

5 Successful sustainability projects that happened in the last year​

In a time when sustainability news is often rather pessimistic, we think it’s also important to shed light on the positive developments and share the great projects that are happening. Preserving nature and enhancing sustainability is critical and urgent. There are already hundreds of projects helping the planet and helping society move in the right direction. 

There is still so much to do, but let’s see what’s already happening out there.

Read More »

Join our newsletter and become part of the solution.