Action pour la Régénération en Plongée des Récifs d’Ostrea Edulis

Photo: Stephane Pouvreau / Ifremer

ARPROE – Action pour la Régénération en Plongée des Récifs d’Ostrea Edulis

ARPROE aims to bring together all the energies needed to regenerate the habitat of the ostrea edulis.

After having established a scientific and technical committee for the development of the ostrea edulis reef regeneration strategy, with biologists (from Ifremer, OFB, and a hatchery), fishermen, oyster farmers, residents, politicians, today, ARPROE is now becoming a key player committed to helping the ostrea edulis regenerate its habitat: the reefs. 

We have articulated our action in three strategic waves :

  • Regenerating ostrea edulis reefs as biodiversity catalysts.
  • Informing and training to enable everyone to participate in this regeneration.
  • Developing diving fishing, to offer a professional outdoor life while having a positive impact on the environment.

ARPROE was born in July 2023 on the basis of several years of experimentation.

Historically present on all French coasts, flat oysters are part of our heritage. Very few reefs remain in France. In other surveyed areas, oysters are too often rolling on the seabed, in too low densities, without fixed support, prey to predation and epizootics.

When healthy, ostrea edulis reefs act on our coasts like corals in tropical zones. They provide habitats, protection, and food for many other marine species. Photos: ARPROE
In September 2023, we dove at the experimental flat oyster restoration site with Ifremer team. It works! Ifremer has shown that their regeneration is possible.

After 18 months of training, information, and exchanges with all stakeholders who support this regeneration of ostrea edulis reefs, we are now approaching larger-scale feasibility studies of sites, to see how to restore them. It’s time for action!

ARPROE is a non-profit organization that participates in the sustainable preservation of oceans. 
After being:

  • sensitized to the fragility of oceans and the biodiversity they harbor;
    informed by OSPAR about the risk of extinction due to lack of habitat for ostrea edulis (flat oysters);
  • educated by scientists and their research, (particularly by the “Forever” report from Ifremer or NORA reports);
  • concerned about intervening through citizen action to improve the lives of future generations by ensuring natural food security.

Our action begins on the Houat (288ha) and Hoëdic (209ha) archipelago located 12 km off the coast of Quiberon, extends from the peninsula in a W-NW/E-SE axis. With the motto ‘Ag er mor e viuamb’ (‘From the sea, we live’), the inhabitants of Houat are determined to revitalize the biodiversity of the archipelago within the 1 Nautical Mile ‘blue belt’ surrounding the islands.” ARPROE supports the ‘blue belt’ initiative with a focus on regenerating flat oysters’ reefs, a species still present in the archipelago but scattered and vulnerable on the seabed, prey to predators and diseases.

Our aim is to regenerate reefs where they were present and to raise awareness of biodiversity conservation among as many people as possible, through participative actions involving private and public intentions.


Philippe Jardin – ARPROE