Carbon dioxide addition to coral reef waters suppresses net community calcification

  title={Carbon dioxide addition to coral reef waters suppresses net community calcification},
  author={Rebecca Albright and Yuichiro Takeshita and David A. Koweek and Aaron T. Ninokawa and Kennedy Wolfe and T. Rivlin and Yana Nebuchina and Jordan Young and Ken Caldeira},
Coral reefs feed millions of people worldwide, provide coastal protection and generate billions of dollars annually in tourism revenue. The underlying architecture of a reef is a biogenic carbonate structure that accretes over many years of active biomineralization by calcifying organisms, including corals and algae. Ocean acidification poses a chronic threat to coral reefs by reducing the saturation state of the aragonite mineral of which coral skeletons are primarily composed, and lowering… 
Unexpected role of communities colonizing dead coral substrate in the calcification of coral reefs
Global and local anthropogenic stressors such as climate change, acidification, overfishing, and pollution are expected to shift the benthic community composition of coral reefs from dominance by
Quantifying functional consequences of habitat degradation on a Caribbean coral reef
Abstract. Coral reefs are declining worldwide. The abundance of corals has decreased alongside a rise of filter feeders, turf, and algae in response to intensifying human pressures. This shift in
Ocean acidification effects on in situ coral reef metabolism
The results show a decrease in 24-h net community calcification (NCC) under high pCO2, and a reduction in nighttime NCC that attenuated and eventually reversed over 21-d, which contribute to previous studies on ecosystem-level responses of coral reefs to the OA conditions projected for the end of the century.
Carbon Isotopic Fractionation in Organic Matter Production Consistent With Benthic Community Composition Across a Coral Reef Flat
Carbon fluxes on coral reefs (net community production and net community calcification) aggregate the collective activity of all coral reef community members. This integrated approach provides
Shallow coral reef free ocean carbon enrichment: Novel in situ flumes to manipulate pCO2 on shallow tropical coral reef communities
Given the severe implications of climate change and ocean acidification (OA) for marine ecosystems, there is an urgent need to quantify ecosystem function in present‐day conditions to determine the
Coral Reef Carbonate Chemistry Variability at Different Functional Scales
There is a growing recognition for the need to understand how seawater carbonate chemistry over coral reef environments will change in a high-CO2 world to better assess the impacts of ocean
Coral reef carbonate budgets and ecological drivers in the central Red Sea – a naturally high temperature and high total alkalinity environment
Abstract. The structural framework provided by corals is crucial for reef ecosystem function and services, but high seawater temperatures can be detrimental to the calcification capacity of
Dimethylsulfide (DMS), marine biogenic aerosols and the ecophysiology of coral reefs
Abstract. Global climate change and the impacts of ocean warming, ocean acidification and declining water quality are adversely affecting coral-reef ecosystems. This is of great concern, as coral
Major loss of coralline algal diversity in response to ocean acidification
This work applies molecular systematic tools to assess the impact of natural gradients in seawater carbonate chemistry on the biodiversity of coralline algae in the Mediterranean and the NW Pacific, link this to their evolutionary history and evaluate their potential future biodiversity and abundance.
Ocean acidification alters early successional coral reef communities and their rates of community metabolism
It is demonstrated that ocean acidification as predicted for the end of this century will strongly alter reef communities, and will significantly change rates of community metabolism.


Reversal of ocean acidification enhances net coral reef calcification
Approximately one-quarter of the anthropogenic carbon dioxide released into the atmosphere each year is absorbed by the global oceans, causing measurable declines in surface ocean pH, carbonate ion
Diel Variability in Seawater pH Relates to Calcification and Benthic Community Structure on Coral Reefs
Key aspects of coral reef ecosystem structure and function are presently related to natural diurnal variability in pH, documented from three reefs in the central Pacific.
Losers and winners in coral reefs acclimatized to elevated carbon dioxide concentrations
Experiments have shown that ocean acidification due to rising atmospheric carbon dioxide concentrations has deleterious effects on the performance of many marine organisms(1-4). However, few
Future reef decalcification under a business-as-usual CO2 emission scenario
The study explores the impact of anthropogenic ocean warming and acidification on intact coral reef assemblages using large-scale, replicated mesocosms that simulate future conditions under natural levels of seasonal variability to demonstrate the influence of multiple variables within regimes that include diurnal and seasonal variability.
Coral Reefs Under Climate Change and Ocean Acidification: Challenges and Opportunities for Management and Policy
Carbon emissions in an industrialized world have created two problems for coral reefs: climate change and ocean acidification. Climate change drives ocean warming, which impacts biological and
Photosynthesis and Calcification at Cellular, Organismal and Community Levels in Coral Reefs: A Review on Interactions and Control by Carbonate Chemistry
SYNOPSIS. Photosynthesis and calcification in zooxanthellate scleractinian corals and coral reefs are reviewed at several scales: cellular (pathways and transport mechanisms of inorganic carbon and
Warm-water coral reefs and climate change
There remains considerable variability in the distribution of threats and in the ability of reefs to survive or recover from such disturbances, however, the future of coral reefs is increasingly bleak.
Sensitivity of coral calcification to ocean acidification: a meta‐analysis
If the existing body of experimental work is indeed representative of likely responses of corals in nature, the results imply that declines in coral calcification by end-of-century will be near the low end of published projections, but support the emerging view that variability due to local environmental conditions and species composition is likely to be substantial.
A short-term in situ CO2 enrichment experiment on Heron Island (GBR)
The results from this short-term experiment suggest that the CP-FOCE is an important new experimental system to study in situ impacts of ocean acidification on coral reef ecosystems.