Foraminifera calcium carbonate production

In general, there is relatively little data available on the relative contributions made by different planktonic calcifying organisms (i.e. coccolithophores, foraminifera, pteropods) to the global production of calcium carbonate. Estimates of the coccoUth contribution to pelagic marine carbonate... 

Si02 is moderately soluble in water (5-75 mg in river water and 4-14 mg L in seawater). The products are then transported in river water to the oceans. There organisms such as foraminifera use calcium carbonate to make shells. Other organ-... 

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