Impacts of Ocean Acidification on Marine Fauna and Ecosystem Processes

Victoria J. Fabry, Brad A. Seibel, Richard A. Feely, James C. Orr

Research output: Contribution to journalArticlepeer-review

Abstract

Oceanic uptake of anthropogenic carbon dioxide (CO 2 ) is altering the seawater chemistry of the world’s oceans with consequences for marine biota. Elevated partial pressure of CO 2 ( p CO 2 ) is causing the calcium carbonate saturation horizon to shoal in many regions, particularly in high latitudes and regions that intersect with pronounced hypoxic zones. The ability of marine animals, most importantly pteropod molluscs, foraminifera, and some benthic invertebrates, to produce calcareous skeletal structures is directly affected by seawater CO 2 chemistry. CO 2 influences the physiology of marine organisms as well through acid-base imbalance and reduced oxygen transport capacity. The few studies at relevant p CO 2 levels impede our ability to predict future impacts on foodweb dynamics and other ecosystem processes. Here we present new observations, review available data, and identify priorities for future research, based on regions, ecosystems, taxa, and physiological processes believed to be most vulnerable to ocean acidification. We conclude that ocean acidification and the synergistic impacts of other anthropogenic stressors provide great potential for widespread changes to marine ecosystems.

Original languageAmerican English
JournalICES Journal of Marine Science
Volume65
DOIs
StatePublished - Jan 1 2008
Externally publishedYes

Disciplines

  • Life Sciences

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