Which of the following is a consequence of ocean acidification on marine organisms?

Ocean acidification refers to the decrease in pH levels of the ocean, primarily caused by the absorption of excess atmospheric carbon dioxide. This process has several significant effects on marine life, particularly for calcifying organisms, which include corals, mollusks, and certain plankton species.

The correct response highlights the negative effects on calcifying organisms because as the ocean becomes more acidic, it affects the ability of these organisms to produce calcium carbonate, which is essential for their skeletal structure and shells. The reduction in carbonate ions, due to the chemical reactions associated with increased carbon dioxide levels, makes it harder for these organisms to maintain their calcium carbonate structures. This can lead to weakened shells or skeletons, reduced growth rates, and increased vulnerability to predation and environmental stresses.

Understanding this consequence is vital for recognizing the broader implications of ocean acidification on marine ecosystems, including potential disruptions to food webs and habitat structures. The detrimental impact on calcifying organisms ultimately affects species diversity and can influence fisheries and the broader marine economy.