La Rochelle – 12.06.2026: The Rapana venosa, the giant Asian whelk, is increasingly spreading in the waters of Charente-Maritime and poses a serious threat to the local oyster farming. This invasive species of snail, which often weighs over one kilogram, releases an enzyme that opens oyster shells, thus endangering the crops.
Fishermen report an alarming increase of the Rapana venosa in their nets. Initially, one specimen was caught per day, but now there are more than ten. This development has driven fishermen to seek solutions to reduce the impact of this invasive species.
The French research institute Ifremer and the regional fishermen’s association propose to market the Rapana venosa as a regulated product. Using this snail as food could not only contain its spread but also create a new source of income for fishermen. This initiative aims to turn the problem of the invasive species into an economic opportunity.
The idea of marketing the Rapana venosa is not new. Already in April 2026, an article discussed how this invasive species could shift from a threat to a business opportunity for fishermen. The challenge lies in adopting the necessary regulatory procedures to place the snail on the market as an edible product.
The spread of the Rapana venosa has not only ecological but also economic repercussions for the region. Oyster farming is an important economic sector in Charente-Maritime, and the threat posed by this invasive species could put numerous jobs at risk. It is therefore essential to adopt effective measures to contain its spread while simultaneously creating new economic prospects.
The discussion about marketing the Rapana venosa highlights how important it is to find innovative solutions to environmental problems. By combining ecological and economic interests, it is possible to develop sustainable strategies that support both the environment and the local economy.
Further discussions are expected in the coming weeks between fishermen, Ifremer, and the competent authorities to plan concrete steps to implement this initiative. The goal is to find a balance between environmental protection and support for the local economy.
The development of this situation will be closely monitored as it is of great importance for both the environment and the economy of Charente-Maritime.