Environment July 24, 2026

Azores build a scientific response to invasive seaweed expansion

Study brings together science, mitigation and potential uses to address Rugulopteryx okamurae in the Azores.

The Regional Government of the Azores and the University of the Azores announced the presentation of a multidisciplinary study on Rugulopteryx okamurae, an invasive species first detected in the Region in 2019. Coordinated by the Regional Directorate for Maritime Policies with the Azorean academic community, the initiative aims to strengthen the knowledge needed to respond to a marine invasion considered particularly aggressive in the archipelago.

The spread of this seaweed affects coastal ecosystems and the environmental quality of bathing areas. Its impacts also reach sea-related activities, including fishing, leisure and tourism, all of which are especially important to island communities.

The research combines work on the species' biology, ecology and dispersal, with input from researchers associated with organisations including CIBIO, the OKEANOS Institute and the Air Centre. This approach is intended to improve understanding of the seaweed's progression and support management decisions suited to Azorean coastal conditions.

The study also considers potential uses for collected material, including biotechnology applications, ruminant feed and agricultural composting. These research lines examine whether part of an environmental problem can have useful applications, while recognising that prevention and control remain necessary.

A third area focuses on mitigation: removal techniques, the management of large accumulations washed ashore, response protocols and public-awareness work. The planned presentation in Horta brought together public administration, specialists, maritime authorities, municipalities and civil society, highlighting that this invasive species requires coordinated scientific, operational and community action.

More news