Theophilus T. auteur aut IRD Vieira C. auteur aut IRD Culioli G. auteur aut IRD Thomas O. P. auteur aut IRD N'Yeurt A. D. auteur aut IRD Andréfouët Serge auteur aut IRD Mattio L. auteur aut IRD Payri Claude auteur aut IRD Zubia M. auteur aut IRD text journalArticle eng text/pdf born digital access The coral reefs of French Polynesia (FP) have experienced repeated macroalgal blooms over the last decades. These events have prompted intense efforts in fundamental and applied research on macroalgae in this ecoregion, especially regarding species of the order Fucales (Turbinaria ornata and Sargassum pacificum). Recently, however, these proliferations have occurred with a higher frequency, and they now involve additional species. Specifically, over the past decade, the abundance of species belonging to the Dictyotaceae family (e.g., Dictyota bartayresiana and Spatoglossum asperum) has increased on coral reefs around Tahiti Island, the largest and most inhabited island in FP. On the course of evolution, these species have developed physical and chemical defenses to deter grazers, including the production of a wide array of specialized metabolites. These molecules are of particular interest for their promising biological activities as well as for the new Blue Economy opportunities they can offer to FP. We review the current state of knowledge on the diversity, ecology, and potential uses of Dictyotaceae species present in FP. The first section focuses on the diversity and distribution of the family Dictyotaceae in FP. The second part examines the ecological dynamics of Dictyotaceae species in the coral reef ecosystem and their response to various environmental factors. The third and final part reviews the metabolites known from Dictyotaceae species that are present in FP, their associated biological activities, and potential for the development of biotechnological applications in FP. specialized marine algal flora turbinaria-ornata phaeophyta brown-algae coral-reefs sargassum-mangarevense phase-shifts in-vitro ultraviolet-radiation lobophora dictyotales secondary metabolites POLYNESIE FRANCAISE TAHITI 034 084 95 163-211 2020 0065-2296 https://www.documentation.ird.fr/hor/fdi:010080275 10.1016/bs.abr.2019.12.001 0065-2296 [F B010080275] https://www.documentation.ird.fr/hor/fdi:010080275 https://www.documentation.ird.fr/intranet/publi/depot/2021-04-01/010080275.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2021-03-10 2025-02-24 fdi:010080275 fre