This presentation introduces the barrages anti-algues by group Algaenova : their technological solutions for combating Sargassum invasions. It covers the company's background, the Algaenova anti-algae dam solution, the mechanization of the process, and the maintenance of cleaner boats. The presentation also highlights new prototypes and the potential for industrial transformation of Sargassum into bio compost, bioplastic, and biogas