Coral and mollusc resistance to ocean acidification adversely affected by warming

  title={Coral and mollusc resistance to ocean acidification adversely affected by warming},
  author={Riccardo Rodolfo-Metalpa and Fanny Houlbr{\`e}que and Eric Tambutt{\'e} and Florence Boisson and Cecilia Baggini and Francesco Paolo Patti and Ross A. Jeffree and Maoz Fine and Andrew Foggo and Jean‐Pierre Gattuso and Jason M. Hall‐Spencer},
  journal={Nature Climate Change},
Increasing atmospheric carbon dioxide (CO2) concentrations are expected to decrease surface ocean pH by 0.3‐0.5 units by 2100 (refs 1,2), lowering the carbonate ion concentration of surface waters. This rapid acidification is predicted to dramatically decrease calcification in many marine organisms 3,4 . Reduced skeletal growth under increased CO2 levels has already been shown for corals, molluscs and many other marine organisms 4‐9 . The impact of acidification on the ability of individual… 
Ocean warming and acidification synergistically increase coral mortality
A synergistic adverse effect on mortality rates is shown, for solitary and colonial, symbiotic and asymbiotic corals, suggesting that high seawater temperatures may have increased their metabolic rates which, in conjunction with decreasing pH, could have led to rapid deterioration of cellular processes and performance.
Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification
It is concluded that the Porites corals at the field site were not able to acclimatize enough to prevent the impacts of local ocean acidification on their skeletal growth and development, despite spending their entire lifespan in low pH, low Ωarag seawater.
Ocean Acidification Accelerates Reef Bioerosion
This study focuses on one of the most detrimental bioeroders, the sponge Cliona orientalis, which attacks and kills live corals on Australia’s Great Barrier Reef, and confirms a significant enforcement of the sponges’ bioerosion capacity with increasing pCO2 under more acidic conditions.
Responses of the tropical gorgonian coral Eunicea fusca to ocean acidification conditions
This study investigated the response of the gorgonian coral Eunicea fusca to a range of CO2 concentrations from 285 to 4,568 ppm (pH range 8.1–7.1) over a 4-week period, which provides important information on the effects of ocean acidification on the dynamics of coral reef communities.
Ocean acidification effects on calcifying macroalgae
The state of knowledge on the response of calcifying macroalgae to ocean acidification alone and in combination with global and local stressors is presented and some suggestions are provided for how this knowledge gap can be filled by future research.
Ocean acidification does not impact shell growth or repair of the Antarctic 1 brachiopod
21 Marine calcifiers are amongst the most vulnerable organisms to ocean acidification 22 due to reduction in the availability of carbonate ions for skeletal/shell deposition. 23 However, there are
Responses of Two Scleractinian Corals to Cobalt Pollution and Ocean Acidification
This study reveals that some reefs may be yet subjected to deleterious pollution levels, and even if no interaction between pCO2 levels and cobalt concentration has been found, it is likely that coral metabolism will be weakened if they are subjected to additional threats such as temperature increase, other heavy metals, and eutrophication.
Impacts of ocean acidification on marine shelled molluscs
While fertilization may remain unaffected by elevated pCO2, embryonic and larval development will be highly sensitive with important reductions in size and decreased survival of larvae, increases in the number of abnormal larvae and an increase in the developmental time.
Slow‐flow habitats as refugia for coastal calcifiers from ocean acidification
  • C. Hurd
  • Environmental Science
    Journal of phycology
  • 2015
Evidence is presented to support the idea that slow‐flow habitats, such as wave‐sheltered bays or the within canopies of seaweed/seagrass beds, might provide inexpensive refugia from OA for vulnerable coastal calcifiers.
Growth response of an early successional assemblage of coralline algae and benthic diatoms to ocean acidification
While crustose coralline algae were able to maintain their presence in this benthic rocky reef species assemblage, the reduced growth rates suggest that they will be less capable of recolonizing after disturbance events, which could result in reducedCoralline cover under OA conditions.


Marine calcifiers exhibit mixed responses to CO2-induced ocean acidification
The results suggest that the impact of elevated atmospheric p CO2 on marine calcification is more varied than previously thought.
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
Effects of ocean acidification and high temperatures on the bryozoan Myriapora truncata at natural CO2 vents
Although M. truncata was resilient to short-term exposure to high levels of ocean acidification at normal temperatures, the field transplants showed that its ability to calcify at higher temperatures was compromised, adding it to the growing list of species now potentially threatened by global warming.
Impact of elevated CO2 on shellfish calcification
Ocean acidification resulting from human emissions of carbon dioxide has already lowered and will further lower surface ocean pH. The consequent decrease in calcium carbonate saturation potentially
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.
Ocean acidification may increase calcification rates, but at a cost
This work shows, using the ophiuroid brittlestar Amphiura filiformis as a model calcifying organism, that some organisms can increase the rates of many of their biological processes, but this upregulation of metabolism and calcification comes at a substantial cost (muscle wastage) and is therefore unlikely to be sustainable in the long term.
Physiological and isotopic responses of scleractinian corals to ocean acidification
Survival of mussels in extremely acidic waters on a submarine volcano.
Increasing atmospheric carbon dioxide levels are causing ocean acidification, compromising the ability of some marine organisms to build and maintain support structures. An analysis of mussels from a
Volcanic carbon dioxide vents show ecosystem effects of ocean acidification
The species populating the vent sites comprise a suite of organisms that are resilient to naturally high concentrations of pCO2 and indicate that ocean acidification may benefit highly invasive non-native algal species.
Response of the temperate coral Cladocora caespitosa to mid- and long-term exposure to p CO 2 and temperature levels projected for the year 2100 AD
It is shown, using the Mediterranean zooxanthellate coral Cladocora caespitosa, that an increase in pCO2, in the range predicted for 2100, does not reduce its calcification rate, and the conventional belief that calcification rates will be affected by ocean acidification may not be widespread in temperate corals.