Two techniques were applied to measure the success of the restoration actions carried out last year, growth monitoring and biodiversity assessment. As for the first one, height is a widely used parameter, not only on algae but other marine organisms such as phanerogams, as a health indicator and will give us an idea of the development state of the restored populations []. Regarding the biodiversity assessment, benthic macrofauna communities have long been regarded as a possible tool for monitoring either man-induced or natural long-term changes in marine ecosystems and will allow us to detect changes in terms of richness or community composition.