Volcanic carbon dioxide vents show ecosystem effects of ocean acidification

  title={Volcanic carbon dioxide vents show ecosystem effects of ocean acidification},
  author={J. Hall-Spencer and R. Rodolfo-Metalpa and Sophie Martin and E. Ransome and M. Fine and S. Turner and S. Rowley and D. Tedesco and M. Buia},
The atmospheric partial pressure of carbon dioxide (pCO2) will almost certainly be double that of pre-industrial levels by 2100 and will be considerably higher than at any time during the past few million years. The oceans are a principal sink for anthropogenic CO2 where it is estimated to have caused a 30% increase in the concentration of H+ in ocean surface waters since the early 1900s and may lead to a drop in seawater pH of up to 0.5 units by 2100 (refs 2, 3). Our understanding of how… Expand
Ocean acidification in a geoengineering context
  • P. Williamson, C. Turley
  • Medicine
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2012
If solar radiation management were to be the main policy response to counteract global warming, ocean acidification would continue to be driven by increases in atmospheric CO2, although with additional temperature-related effects on CO2 and CaCO3 solubility and terrestrial carbon sequestration. Expand
Volcanic CO2 seep geochemistry and use in understanding ocean acidification
Ocean acidification is one of the most dramatic effects of the massive atmospheric release of anthropogenic carbon dioxide (CO 2 ) that has occurred since the Industrial Revolution, although itsExpand
Chapter 18 – Ocean Acidification
The ocean has absorbed about 30% of the CO2 emitted into the atmosphere from anthropogenic sources. This has resulted in the measurable alteration of ocean carbonate chemistry. Ocean pH has alreadyExpand
Acidification of Lower St. Lawrence Estuary Bottom Waters
Accumulation of metabolic CO2 can acidify marine waters above and beyond the ongoing acidification of the ocean by anthropogenic CO2. The impact of respiration on carbonate chemistry and pH is mostExpand
Adverse Effect of Ocean Acidification on Marine Organisms
Ocean acidification (OA) is a process induced by a change in the chemistry of carbonate. In normal situations carbon dioxide (CO2) is produced by either photosynthesis and respiration and in longExpand
Clues from Current High CO2 Environments on the Effects of Ocean Acidification on CaCO3 Preservation
Acidification of surface seawater owing to anthropogenic activities has raised serious concerns on its consequences for marine calcifying organisms and ecosystems. To acquire knowledge concerning theExpand
The effects of acidification and warming on marine calcifying biota
Results suggest that seasonal variability in environmental conditions will greatly impact the response of coralline algae to elevated temperature and pCO2, and supports the hypothesis that dissolution may in fact be the primary threat to marine calcifiers, as opposed to impaired calcification. Expand
Ocean acidification: the other CO2 problem.
The potential for marine organisms to adapt to increasing CO2 and broader implications for ocean ecosystems are not well known; both are high priorities for future research. Expand
The effects of elevated CO2 and ocean acidification on the production of marine biogenic trace gases
The human-induced increases in atmospheric carbon dioxide since the beginning of the industrial revolution have led to increasing oceanic carbon uptake and changes in seawater carbonate chemistry,Expand
Effects of naturally acidified seawater on seagrass calcareous epibionts
The response of calcareous seagrass epibionts to elevated CO2 partial pressure in aquaria and at a volcanic vent area where seagRass habitat has been exposed to high CO2 levels for decades are shown. Expand


Enhanced biological carbon consumption in a high CO2 ocean
It is shown that dissolved inorganic carbon consumption of a natural plankton community maintained in mesocosm enclosures at initial CO2 partial pressures increases with rising CO2, and the observed responses have implications for a variety of marine biological and biogeochemical processes, and underscore the importance of biologically driven feedbacks in the ocean to global change. Expand
Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms
13 models of the ocean–carbon cycle are used to assess calcium carbonate saturation under the IS92a ‘business-as-usual’ scenario for future emissions of anthropogenic carbon dioxide and indicate that conditions detrimental to high-latitude ecosystems could develop within decades, not centuries as suggested previously. Expand
Impact of Anthropogenic CO2 on the CaCO3 System in the Oceans
The in situ CaCO3 dissolution rates for the global oceans from total alkalinity and chlorofluorocarbon data are estimated, and the future impacts of anthropogenic CO2 on Ca CO3 shell–forming species are discussed. Expand
Atmospheric carbon dioxide concentrations over the past 60 million years
The boron-isotope ratios of ancient planktonic foraminifer shells are used to estimate the pH of surface-layer sea water throughout the past 60 million years, which can be used to reconstruct atmospheric CO2 concentrations. Expand
Decreased abundance of crustose coralline algae due to ocean acidification
Increasing levels of atmospheric carbon dioxide leads to ocean acidification, causing significant reductions in the growth of crustose coralline algae. Owing to anthropogenic emissions, atmosphericExpand
Coral Reefs Under Rapid Climate Change and Ocean Acidification
As the International Year of the Reef 2008 begins, scaled-up management intervention and decisive action on global emissions are required if the loss of coral-dominated ecosystems is to be avoided. Expand
Ocean model predictions of chemistry changes from carbon dioxide emissions to the atmosphere and ocean
[1] We present ocean chemistry calculations based on ocean general circulation model simulations of atmospheric CO2 emission, stabilization of atmospheric CO2 content, and stabilization ofExpand
Global carbon dioxide emission to the atmosphere by volcanoes
Global emission of carbon dioxide by subaerial volcanoes is calculated, using CO2SO2 from volcanic gas analyses and SO2 flux, to be 34 ± 24 × 10l2gCO2yr from passive degassing and 31 ± 22 ×Expand
Elevated CO2enhances nitrogen fixation and growth in the marine cyanobacterium Trichodesmium
In oceanic regions, where light and nutrients such as P and Fe are not limiting, it is expected the projected concentrations of CO₂ to increase N fixation and growth of Trichodesmium, thereby enhancing inputs of new N and increasing primary productivity in the oceans. Expand
Effects of anthropogenic seawater acidification on acid-base balance in the sea urchin Psammechinus miliaris.
It is shown that a chronic reduction of surface water pH to below 7.5 would be severely detrimental to the acid-base balance of this predominantly intertidal species; despite its ability to tolerate fluctuations in pCO(2) and pH in the rock pool environment. Expand