Calcification is not the Achilles'heel of cold-water corals in an acidifying ocean
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2015
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| _version_ | 1867169105936646144 |
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| author | Rodolfo-Metalpa, Riccardo Montagna, Paolo Aliani, Stefano Borghini, Mireno Canese, Simonepietro Hall-Spencer, Jason M Foggo, A Milazzo, Marco Taviani, Marco Houlbrèque, Fanny |
| author_facet | Rodolfo-Metalpa, Riccardo Montagna, Paolo Aliani, Stefano Borghini, Mireno Canese, Simonepietro Hall-Spencer, Jason M Foggo, A Milazzo, Marco Taviani, Marco Houlbrèque, Fanny |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient. There are concerns that cold-water corals are even more vulnerable as they live in areas where aragonite saturation (Omega ara) is lower than in the tropics and is falling rapidly due to CO2 emissions. Here, we provide laboratory evidence that net (gross calcification minus dissolution) and gross calcification rates of three common cold-water corals, Caryophyllia smithii, Dendrophyllia cornigera, and Desmophyllum dianthus, are not affected by pCO2 levels expected for 2100 (pCO2 1058 µatm, Omega ara 1.29), and nor are the rates of skeletal dissolution in D. dianthus. We transplanted D. dianthus to 350 m depth (pHT 8.02; pCO2 448 µatm, Omega ara 2.58) and to a 3 m depth CO2 seep in oligotrophic waters (pHT 7.35; pCO2 2879 µatm, Omega ara 0.76) and found that the transplants calcified at the same rates regardless of the pCO2 confirming their resilience to acidification, but at significantly lower rates than corals that were fed in aquaria. Our combination of field and laboratory evidence suggests that ocean acidification will not disrupt cold-water coral calcification although falling aragonite levels may affect other organismal physiological and/or reef community processes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_847763 |
| institution | PANGAEA |
| language | en |
| publishDate | 2015 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Calcification is not the Achilles'heel of cold-water corals in an acidifying ocean Rodolfo-Metalpa, Riccardo Montagna, Paolo Aliani, Stefano Borghini, Mireno Canese, Simonepietro Hall-Spencer, Jason M Foggo, A Milazzo, Marco Taviani, Marco Houlbrèque, Fanny Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Bari_Canyon; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Caryophyllia smithii; Cnidaria; Containers and aquaria (20-1000 L or < 1 m**2); Deep-sea; Dendrophyllia cornigera; Desmophyllum dianthus; Dissolution rate; Event label; EXP; Experiment; Field experiment; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Ionian_Sea; Laboratory experiment; Malta_OA; Mediterranean Sea; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Respiration; Respiration rate, oxygen; Salinity; Single species; Species; Temperate; Temperature, water; Temperature, water, standard deviation; Treatment Ocean acidification is thought to be a major threat to coral reefs: laboratory evidence and CO2 seep research has shown adverse effects on many coral species, although a few are resilient. There are concerns that cold-water corals are even more vulnerable as they live in areas where aragonite saturation (Omega ara) is lower than in the tropics and is falling rapidly due to CO2 emissions. Here, we provide laboratory evidence that net (gross calcification minus dissolution) and gross calcification rates of three common cold-water corals, Caryophyllia smithii, Dendrophyllia cornigera, and Desmophyllum dianthus, are not affected by pCO2 levels expected for 2100 (pCO2 1058 µatm, Omega ara 1.29), and nor are the rates of skeletal dissolution in D. dianthus. We transplanted D. dianthus to 350 m depth (pHT 8.02; pCO2 448 µatm, Omega ara 2.58) and to a 3 m depth CO2 seep in oligotrophic waters (pHT 7.35; pCO2 2879 µatm, Omega ara 0.76) and found that the transplants calcified at the same rates regardless of the pCO2 confirming their resilience to acidification, but at significantly lower rates than corals that were fed in aquaria. Our combination of field and laboratory evidence suggests that ocean acidification will not disrupt cold-water coral calcification although falling aragonite levels may affect other organismal physiological and/or reef community processes. |
| title | Calcification is not the Achilles'heel of cold-water corals in an acidifying ocean |
| topic | Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Bari_Canyon; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Caryophyllia smithii; Cnidaria; Containers and aquaria (20-1000 L or < 1 m**2); Deep-sea; Dendrophyllia cornigera; Desmophyllum dianthus; Dissolution rate; Event label; EXP; Experiment; Field experiment; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Ionian_Sea; Laboratory experiment; Malta_OA; Mediterranean Sea; OA-ICC; Ocean acidification; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH, standard deviation; pH, total scale; Potentiometric; Potentiometric titration; Respiration; Respiration rate, oxygen; Salinity; Single species; Species; Temperate; Temperature, water; Temperature, water, standard deviation; Treatment |
| url | https://doi.org/10.1594/PANGAEA.847763 |