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Ocean acidification does not affect magnesium composition or dolomite formation in living crustose coralline algae, Porolithon onkodes in an experimental system

Nash, Merinda; Uthicke, S.; Negri, A.P.; Cantin, N.


There are concerns that Mg-calcite crustose coralline algae (CCA), which are key reef builders on coral reefs, will be most susceptible to increased rates of dissolution under higher pCO<inf>2</inf> and ocean acidification. Due to the higher solubility of Mg-calcite, it has been hypothesised that magnesium concentrations in CCA Mg-calcite will decrease as the ocean acidifies, and that this decrease will make their skeletons more chemically stable. In addition to Mg-calcite, CCA Porolithon...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Biogeosciences
DOI: 10.5194/bg-12-5247-2015


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