Anthropogenic CO2 fluxes in the Otranto Strait (E. Mediterranean) in February 1995

► Study of the inorganic carbon system parameters in the Otranto Strait. ► Assessment of anthropogenic CO2 fluxes through the Otranto Strait using TrOCA method. ► Elevated Cant content and high anthropogenic pH variations observed close to bottom. ► Adriatic Sea imports natural and anthropogenic carbon acting as net sink for the Ionian. ► Large Cant amounts penetrated E. Mediterranean waters, causing important pH decline.