Tropical coastal habitats such as mangrove forests, seagrass meadows and coral reefs form a complex interaction network on which biodiversity, societies, and climate depend. These interactions amplify the combined ecological performance of the individual habitats, thus influencing their productivity and resilience. However, these habitats are in rapid decline due to various anthropogenic and climate-driven environmental pressures. The objectives of this PhD project are to i) better understand facilitative interactions and biogeochemical fluxes across tropical coastal habitats ; ii) assess the effects of anthropogenic and climate change disturbances; iii) understand the influence of cross-habitat interactions on the ecological performance of the biome when exposed to multiple internal and external pressures. This project takes an integrated and multidisciplinary approach that aims to provide sound scientific knowledge for the management and restoration of tropical seascapes.