This project consists of studying the effects of ocean acidification on a naturally acidified ecosystem. This innovative approach was used for the first time in the Mediterranean in Ischia, Italy, on a volcanic site that emitted CO2 and created a natural gradient of pH acid affecting the benthic ecosystems. The project is about the adaptive physiological response of key organisms: two common gastropods (Patella caerulea, Osilinus turbinate), a mollusk (Mitylus galloprovincialis) and a marine plant (Posidonia oceanica). Two transplantation attempts will also be carried out in situ on these organisms adapted to the acid environment, as well as studies on calcification using a 45Ca radiotracer. The results will enable us to predict more accurately the ecological consequences of sea acidification (by 2100) on the biodiversity of the benthic communities of the Mediterranean.
International Atomic Energy (IAEA)