Journal Article 142M471B3J Carbon Dioxide ocean acidification ecosystem function natural CO2 vents seagrass Mediterranean Sea Research Support, Non-U.S. Gov't acciones de conservación acclimatization/adaptation mechanisms amenazas múltiples benthic species biodiversity blue carbon calcification conservation actions corals decomposition detritivore ecosystem-based management environmental variability expert knowledge elicitation global change global environmental change manejo con base en los ecosistemas multiple threats obtención de conocimiento de expertos pastos marinos trait diversity