Macroalgal proliferation constitutes a major threat to coral reef resilience. Macroalgae can affect corals by altering their microbiome and metabolome. However, our understanding of the spatial scale of these effects and the influence of environmental factors is limited. We conducted a manipulative field experiment to investigate how interaction types (direct contact and close proximity) with the allelopathic macroalga Dictyot...

In the last decades, an apparent increase in the frequency of benthic cyanobacterial blooms has occurred in coral reefs and tropical lagoons, possibly in part because of global change and anthropogenic activities. In the frame of the survey of marine benthic cyanobacteria proliferating in the lagoon of Moorea Island (French Polynesia), 15 blooms were collected, mainly involving three species—Anabaena sp.1, Lyngbya majuscula an...