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Calcification in marine organisms: ocean-acidification and proxy-development studies (including Vladimir Ivanovich Vernadsky Medal Lecture)
Convener: L. de Nooijer  | Co-Conveners: K. G. Schulz , A. Meibom 
Oral Programme
 / Thu, 26 Apr, 08:30–12:00  / 13:30–15:00  / Room 23
Poster Programme
 / Attendance Thu, 26 Apr, 17:30–19:00  / Poster Area BG
Poster Summaries & DiscussionsPSD20.5 

Calcification, the formation of calcium carbonate skeletons, is widely distributed among marine organisms and include prokaryotes as well as eukaryotes, heterotrophs as well autotrophs, benthic as well as pelagic organisms. Factors governing calcification operate at several levels, including cell and physiological, organism, population, community and ecosystem levels. Our understanding of calcification at many of these levels is rudimentary and there is even less known about connection among these levels, yet it governs the response of marine calcifiers to environmental change. One pressing question is how will marine organism calcify in an acidifying ocean? Scondly. fossil biogenic calcium carbonate is a popular tool to reconstruct past marine environments because its trace element and stable isotope composition reflect environmental conditions. To improve the accuracy and precision of carbonate-based proxy it is necessary to integrate field, laboratory and experimental studies on calcification by marine organisms.
This session aims to bring together the wide spectrum of current research on calcifying organisms, including ocean acidification effects on calcification and development of proxy for paleostudies. We invite abstracts for poster- and oral presentations encompassing areas including analytical developments in elemental and isotopic determination, culturing designs, cell-physiological studies, field surveys and the paleoceanographic application of marine calcifyers.