The O2, pH and Ca2+ Microenvironment of Benthic Foraminifera in a High CO2 World, supplement to: Glas, Martin S; Fabricius, Katharina Elisabeth; de Beer, Dirk; Uthicke, Sven; Gilbert, Jack Anthony (2012): The O2, pH and Ca2+ Microenvironment of Benthic Foraminifera in a High CO2 World. PLoS ONE, 7(11), e50010

Martin S Glas, Katharina Elisabeth Fabricius, Dirk de Beer, Sven Uthicke & Jack Anthony Gilbert
Ocean acidification (OA) can have adverse effects on marine calcifiers. Yet, phototrophic marine calcifiers elevate their external oxygen and pH microenvironment in daylight, through the uptake of dissolved inorganic carbon (DIC) by photosynthesis. We studied to which extent pH elevation within their microenvironments in daylight can counteract ambient seawater pH reductions, i.e. OA conditions. We measured the O2 and pH microenvironment of four photosymbiotic and two symbiont-free benthic tropical foraminiferal species at three different OA...
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