Contents:

I – Executive Summary …………………………………………………………………

1. Introduction
2. Impacts of high pCO 2 on Mediterranean and Black Sea chemistry
          2.1. Impacts of high temperature and pCO 2 on the chemistry of the Mediterranean and the Black Seas: emphasis on carbon cycle, carbonate chemistry, aragonite and calcite saturation horizons, and on pH
          2.2. Impacts of acidification on biogeochemical cycling: emphasis on nutrients, trace elements and primary production
          2.3. How Mediterranean and Black Sea environmentals conditions have changed due to changes in pH in the past: “Ocean Acidification” and lessons from history
3. Modeling studies for better understanding and predictions of future impacts
4. Biological impacts of ocean acidification in Mediterranean and Black Sea ecosystems
          4.1. A rich biodiversity at risk
          4.2. Biological response to OA (based on experiments in the laboratory or in mesocosms
                    4.2.1. Pelagic organisms
                    4.2.2. Benthic organisms
          4.3. Field studies on community and ecosystem responses
5. Socio-economic impacts of ocean acidification – regional aspects
6. Workshop recommendations: gaps and future work
          6.1. Main gaps
          6.2. Recommendations for future research

II – Workshop Communications

- Ocean acidification issues in the Mediterranean and Black Seas : present status and future perspectives.
S.W. Fowler…………………… ………………………………

- EPOCA (European Project on Ocean Acidification) and other research efforts devoted to the Mediterranean Sea.
J.P. Gattuso and L. Hansson …………………………………………………

- Temporal variations of anthropogenic CO 2 concentrations in the Mediterranean Sea.
C. Goyet and F. Touratier …………………………………………

- Past and present variations in the C-cycle and related changes in eastern Mediterranean C deposition and preservation.
G.J. De Lange …………………… ………………………………

- Observations of nitrogen chemistry and fluxes under high CO 2 conditions: implications for the Mediterranean Sea.
A.P. Rees, J.L. Dixon, S. Widdicombe and N. Wyatt…………………………………………………

- Biogeochemical impacts of ocean acidification – emphasis on carbonate production and dissolution.
M. Gehlen ……………………………… ………………………………

- High-resolution geochemical records from Mediterranean cold-water corals: proxies for paleoclimate and paleoenvironmental reconstructions and the role of coral physiology.
P. Montagna, M. McCulloch, C. Mazzoli, M. Taviani and S. Silenzi …………………………………………………

- Loss of Mediterranean marine biodiversity in a high-CO 2 world.
J. Hall-Spencer and R. Rodolfo-Metalpa …………………………………………………

- Mediterranean corals under global warming and ocean acidification.
M. Fine and T. Mordechay …………………… ………………………………

- Effect of elevated pCO 2 on the boron isotopic composition into the Mediterranean scleractinian coral Cladocora caespitosa.
S. Reynaud, C. Rollion-Bard, S. Martin, R. Rodolpho-Metalpa and J.P. Gattuso ………………………… ………………………………

- Experimental studies of ocean-acidification impacts on Mediterranean seafood species.
R. Jeffree, S. Martin, T. Lacoue-Labarthe, F. Houlbreque, F. Oberhänsli, S. Comeau, J.L. Teyssié, F. Boisson, J.P. Gattuso and J. Orr …………………… ………………………………

- Impact of ocean acidification on marine shellfish.
F. Gazeau ……………………………………………………

- Ocean acidification and its impact on the early life-history stages of marine animals.
S. Dupont and M.C. Thorndyke ……………………………………………………

- Impact of acidification on pelagic calcifying organisms in the Mediterranean Sea.
P. Ziveri, K.J. Sebastian Meier, L. Auliaherliaty, L. Beaufort, H.M. Stoll and M. Triantaphyllou …………………… ………………………………

III– Bibliographic References …………………………………………………………

IV – List of Participants …………………………………………………………………