Rodolfo-Metalpa Riccardo auteur aut IRD Montagna P. auteur aut IRD Aliani S. auteur aut IRD Borghini M. auteur aut IRD Canese S. auteur aut IRD Hall-Spencer J. M. auteur aut IRD Foggo A. auteur aut IRD Milazzo M. auteur aut IRD Taviani M. auteur aut IRD Houlbrèque Fanny auteur aut IRD text journalArticle eng text/pdf born digital access Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient. There are concerns that cold-water corals are even more vulnerable as they live in areas where aragonite saturation ((ara)) is lower than in the tropics and is falling rapidly due to CO2 emissions. Here, we provide laboratory evidence that net (gross calcification minus dissolution) and gross calcification rates of three common cold-water corals, Caryophyllia smithii, Dendrophyllia cornigera, and Desmophyllum dianthus, are not affected by pCO(2) levels expected for 2100 (pCO(2)1058atm, (ara) 1.29), and nor are the rates of skeletal dissolution in D.dianthus. We transplanted D.dianthus to 350m depth (pH(T) 8.02; pCO(2)448atm, (ara) 2.58) and to a 3m depth CO2 seep in oligotrophic waters (pH(T) 7.35; pCO(2)2879atm, (ara) 0.76) and found that the transplants calcified at the same rates regardless of the pCO(2) confirming their resilience to acidification, but at significantly lower rates than corals that were fed in aquaria. Our combination of field and laboratory evidence suggests that ocean acidification will not disrupt cold-water coral calcification although falling aragonite levels may affect other organismal physiological and/or reef community processes. specialized calcification and dissolution Caryophyllia smithii cold-water corals Dendrophyllia cornigera Desmophyllum dianthus ocean acidification ADRIATIQUE MEDITERRANEE 032 036 21 6 2238-2248 2015 1354-1013 https://www.documentation.ird.fr/hor/fdi:010064189 10.1111/gcb.12867 1354-1013 [F B010064189] https://www.documentation.ird.fr/hor/fdi:010064189 https://www.documentation.ird.fr/intranet/publi/2015/06/010064189.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-07-03 2017-08-23 fdi:010064189 fre