Earth System Science Data www.earth-syst-sci-data.net 1866-3508 1866-3516 2 2 2010 10.5194/essd-2-167-2010 http://www.earth-syst-sci-data.net/2/167/2010/ http://www.earth-syst-sci-data.net/2/167/2010/essd-2-167-2010.html http://www.earth-syst-sci-data.net/2/167/2010/essd-2-167-2010.pdf 167 175 2010-07-08 EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification A.-M. Nisumaa nisumaa@obs-vlfr.fr S. Pesant R. G. J. Bellerby B. Delille J. J. Middelburg J. C. Orr U. Riebesell T. Tyrrell D. Wolf-Gladrow J.-P. Gattuso CNRS-INSU, Laboratoire d'Océanographie de Villefranche (UMR 7093), B.P. 28, 06234 Villefranche-sur-Mer Cedex, France Université Pierre et Marie Curie-Paris 6, Observatoire Océanologique de Villefranche, 06230 Villefranche-sur-Mer, France MARUM, Center for Marine Environmental Sciences, Leobener Strasse, 28359, Bremen, Germany Bjerknes Centre for Climate Research, University of Bergen, Bergen, Allégaten 55, 5007 Bergen, Norway Geophysical Institute, University of Bergen, Bergen, Allégaten 70, 5007 Bergen, Norway Unité d'Océanographie Chimique, Université de Liège, 4000 Liège, Belgium Netherlands Institute of Ecology, Centre for Estuarine and Marine Ecology, Korringaweg 7, P.O. Box 140, 4400 AC Yerseke, The Netherlands Faculty of Geosciences, Utrecht University, P.O. Box 80021, 3508 TA Utrecht, The Netherlands LSCE/IPSL, Laboratoire des Sciences du Climat et de l'Environnement, CEA/CNRS/UVSQ, Orme des Merisiers, Bat. 712, 91191 Gif–sur-Yvette cedex, France Leibniz Institute of Marine Sciences, IFM-GEOMAR, Düsternbrooker Weg 20, 24105 Kiel, Germany School of Ocean and Earth Science, University of Southampton, National Oceanography Centre Southampton, European Way, Southampton, Hants, SO14 3ZH, UK AWI for Marine and Polar Research, Am Handelshafen 12, 27570 Bremerhaven, Germany The uptake of anthropogenic CO₂ by the oceans has led to a rise in the oceanic partial pressure of CO₂, and to a decrease in pH and carbonate ion concentration. This modification of the marine carbonate system is referred to as ocean acidification. Numerous papers report the effects of ocean acidification on marine organisms and communities but few have provided details concerning full carbonate chemistry and complementary observations. Additionally, carbonate system variables are often reported in different units, calculated using different sets of dissociation constants and on different pH scales. Hence the direct comparison of experimental results has been problematic and often misleading. The need was identified to (1) gather data on carbonate chemistry, biological and biogeochemical properties, and other ancillary data from published experimental data, (2) transform the information into common framework, and (3) make data freely available. The present paper is the outcome of an effort to integrate ocean carbonate chemistry data from the literature which has been supported by the European Network of Excellence for Ocean Ecosystems Analysis (EUR-OCEANS) and the European Project on Ocean Acidification (EPOCA). 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