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Gaining insight on the acidification problem in the Mediterranean from time-series and manipulation experiments

AuthorsPelejero, Carles ; Movilla, Juan Ignacio ; López-Sanz, Àngel ; Calvo, Eva María
Issue Date18-Nov-2014
Citation2nd International Ocean Research Conference (2014)
AbstractThe Mediterranean Sea has certain characteristics that make it especially sensitive to the anthropogenic increase in atmospheric CO2. There is debate, however, on whether the acidification due to the marine absorption of part of this anthropogenic CO2 is taking place more rapidly in the Mediterranean than in the global oceans. In addition, the confluence of multiple processes that takes place in coastal areas makes even harder to predict the future trends of seawater pH and the associated vulnerability in these areas compared to the open ocean. In this context, at Institut de Ciències del Mar (ICM), CSIC, we have been undertaking research to gain insight on the acidification problem in the Mediterranean Sea from two different angles: First, by initiating instrumental time-series of pH and other parameters of the CO2 system in seawater at fixed stations in the Catalan Coast. Second, by running pH manipulative experiments, in some instances combined with warming, on a range of marine organisms encompassing temperate and cold-water corals, sponges and jellyfish polyps. In this presentation we will first outline some of the results currently being obtained from the instrumental time-series of pH in the Catalan Sea coast, including data obtained using submersible autonomous systems. We will then move to show the main results obtained from mid- to long-term manipulative experiments in which several Mediterranean species were exposed to pH values expected for the year 2100 at the purpose designed experimental aquarium facilities in the ICM
Description2nd International Ocean Research Conference, One planet one ocean, 17-21 November 2014, Barcelona, Spain
Publisher version (URL)http://www.iocunesco-oneplanetoneocean.fnob.org/
Appears in Collections:(ICM) Comunicaciones congresos
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