Raised CO2 in aquatic systems can also lead to physiological stress, difficulty in
building calcareous shells etc. (as will happen if atmospheric CO2 continues to build up beyond around 700ppm - the so called ocean acidification effect).
«Presumably, the algae
built their calcareous shells as a protection against predators.
I think some research shows corals expelling their symbiotic algae at higher temperatures, which will make growing more difficult, leading to greater difficulties in keeping the productive population at the proper depth, and they've got decreased ability to
build their calcareous skeletons (due to the dissolving CO2) on top of all that.
Not exact matches
As the
calcareous shells of crustaceans that lived in the sea were discarded, they
built up on the floor, and eventually became calcium carbonate — limestone.
That additional acidity gained from carbon dioxide in sea water is affecting many species with
calcareous shells and having the most significant effect on hard corals, which also use calcium carbonate to
build their home