Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata
Ocean acidification is a major threat to calcifying marine organisms such as deep-sea cold-water corals (CWC), but related knowledge is scarce. The aragonite saturation threshold (Omega a) for calcification, respiration, and organic matter fluxes was investigated experimentally in the Mediterranean...
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Format: | Dataset |
Language: | English |
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PANGAEA
2016
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.869415 https://doi.org/10.1594/PANGAEA.869415 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.869415 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Alkalinity total Animalia Aragonite saturation state Area Bari_Canyon_OA Benthic animals Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic change rate Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coral Deep-sea Dry mass EXP Experiment Feeding mode Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gas flux Growth/Morphology Incubation duration Laboratory experiment Madrepora oculata Mediterranean Sea OA-ICC Ocean Acidification International Coordination Centre Other Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Particulate organic carbon uptake rate Percentage pH Polyp number Pressure |
spellingShingle |
Alkalinity total Animalia Aragonite saturation state Area Bari_Canyon_OA Benthic animals Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic change rate Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coral Deep-sea Dry mass EXP Experiment Feeding mode Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gas flux Growth/Morphology Incubation duration Laboratory experiment Madrepora oculata Mediterranean Sea OA-ICC Ocean Acidification International Coordination Centre Other Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Particulate organic carbon uptake rate Percentage pH Polyp number Pressure Maier, Cornelia Popp, Pauline Sollfrank, Nicole Weinbauer, Markus G Wild, Christian Gattuso, Jean-Pierre Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata |
topic_facet |
Alkalinity total Animalia Aragonite saturation state Area Bari_Canyon_OA Benthic animals Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic change rate Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coral Deep-sea Dry mass EXP Experiment Feeding mode Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gas flux Growth/Morphology Incubation duration Laboratory experiment Madrepora oculata Mediterranean Sea OA-ICC Ocean Acidification International Coordination Centre Other Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Particulate organic carbon uptake rate Percentage pH Polyp number Pressure |
description |
Ocean acidification is a major threat to calcifying marine organisms such as deep-sea cold-water corals (CWC), but related knowledge is scarce. The aragonite saturation threshold (Omega a) for calcification, respiration, and organic matter fluxes was investigated experimentally in the Mediterranean Madrepora oculata (Linnaeus 1758). Over 10 weeks, colonies were maintained under two feeding regimes (uptake of 36.75 and 7.46 µmol C/polyp/week) and exposed in 2 week intervals to a consecutively changing air-CO2 mix (pCO2) of 400, 1600, 800, 2000 and 400 ppm. There was a significant effect of feeding on calcification at initial ambient pCO2, while at consecutive pCO2 treatments feeding had no effect on calcification. Respiration was not significantly affected by feeding or pCO2 levels. Coral skeletons started to dissolve at an average Omega a threshold of 0.92, but recovered and started to calcify again at Omega a> or =1. The surplus energy required to counteract dissolution at elevated pCO2 (> or =1600µatm) was twice that at ambient pCO2. Yet, feeding had no mitigating effect at increasing pCO2 levels. This could be due to the fact that the energy required for calcification is a small fraction (1 to 3%) of the total metabolic energy demand and corals even under low food conditions might therefore still be able to allocate this small portion of energy to calcification. The response and resistance to ocean acidification is consequently not controlled by feeding in this species, but more likely by chemical reaction at the site of calcification and exchange processes between the calicoblastic layer and ambient seawater. |
format |
Dataset |
author |
Maier, Cornelia Popp, Pauline Sollfrank, Nicole Weinbauer, Markus G Wild, Christian Gattuso, Jean-Pierre |
author_facet |
Maier, Cornelia Popp, Pauline Sollfrank, Nicole Weinbauer, Markus G Wild, Christian Gattuso, Jean-Pierre |
author_sort |
Maier, Cornelia |
title |
Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata |
title_short |
Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata |
title_full |
Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata |
title_fullStr |
Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata |
title_full_unstemmed |
Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata |
title_sort |
effects of elevated pco2 and feeding on net calcification and energy budget of the mediterranean cold-water coral madrepora oculata |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.869415 https://doi.org/10.1594/PANGAEA.869415 |
op_coverage |
LATITUDE: 41.287780 * LONGITUDE: 17.277220 * DATE/TIME START: 2010-03-05T00:00:00 * DATE/TIME END: 2010-03-05T00:00:00 |
long_lat |
ENVELOPE(17.277220,17.277220,41.287780,41.287780) |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Supplement to: Maier, Cornelia; Popp, Pauline; Sollfrank, Nicole; Weinbauer, Markus G; Wild, Christian; Gattuso, Jean-Pierre (2016): Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata. Journal of Experimental Biology, 219(20), 3208-3217, https://doi.org/10.1242/jeb.127159 |
op_relation |
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.869415 https://doi.org/10.1594/PANGAEA.869415 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.86941510.1242/jeb.127159 |
_version_ |
1810469263381626880 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.869415 2024-09-15T18:27:58+00:00 Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata Maier, Cornelia Popp, Pauline Sollfrank, Nicole Weinbauer, Markus G Wild, Christian Gattuso, Jean-Pierre LATITUDE: 41.287780 * LONGITUDE: 17.277220 * DATE/TIME START: 2010-03-05T00:00:00 * DATE/TIME END: 2010-03-05T00:00:00 2016 text/tab-separated-values, 11229 data points https://doi.pangaea.de/10.1594/PANGAEA.869415 https://doi.org/10.1594/PANGAEA.869415 en eng PANGAEA Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb https://doi.pangaea.de/10.1594/PANGAEA.869415 https://doi.org/10.1594/PANGAEA.869415 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Maier, Cornelia; Popp, Pauline; Sollfrank, Nicole; Weinbauer, Markus G; Wild, Christian; Gattuso, Jean-Pierre (2016): Effects of elevated pCO2 and feeding on net calcification and energy budget of the Mediterranean cold-water coral Madrepora oculata. Journal of Experimental Biology, 219(20), 3208-3217, https://doi.org/10.1242/jeb.127159 Alkalinity total Animalia Aragonite saturation state Area Bari_Canyon_OA Benthic animals Benthos Bicarbonate ion Bottles or small containers/Aquaria (<20 L) Calcification/Dissolution Calcification rate Calcification rate of calcium carbonate Calcite saturation state Calculated using seacarb Calculated using seacarb after Nisumaa et al. (2010) Carbon inorganic dissolved organic change rate Carbonate ion Carbonate system computation flag Carbon dioxide Cnidaria Coral Deep-sea Dry mass EXP Experiment Feeding mode Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Gas flux Growth/Morphology Incubation duration Laboratory experiment Madrepora oculata Mediterranean Sea OA-ICC Ocean Acidification International Coordination Centre Other Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Particulate organic carbon uptake rate Percentage pH Polyp number Pressure dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.86941510.1242/jeb.127159 2024-07-24T02:31:33Z Ocean acidification is a major threat to calcifying marine organisms such as deep-sea cold-water corals (CWC), but related knowledge is scarce. The aragonite saturation threshold (Omega a) for calcification, respiration, and organic matter fluxes was investigated experimentally in the Mediterranean Madrepora oculata (Linnaeus 1758). Over 10 weeks, colonies were maintained under two feeding regimes (uptake of 36.75 and 7.46 µmol C/polyp/week) and exposed in 2 week intervals to a consecutively changing air-CO2 mix (pCO2) of 400, 1600, 800, 2000 and 400 ppm. There was a significant effect of feeding on calcification at initial ambient pCO2, while at consecutive pCO2 treatments feeding had no effect on calcification. Respiration was not significantly affected by feeding or pCO2 levels. Coral skeletons started to dissolve at an average Omega a threshold of 0.92, but recovered and started to calcify again at Omega a> or =1. The surplus energy required to counteract dissolution at elevated pCO2 (> or =1600µatm) was twice that at ambient pCO2. Yet, feeding had no mitigating effect at increasing pCO2 levels. This could be due to the fact that the energy required for calcification is a small fraction (1 to 3%) of the total metabolic energy demand and corals even under low food conditions might therefore still be able to allocate this small portion of energy to calcification. The response and resistance to ocean acidification is consequently not controlled by feeding in this species, but more likely by chemical reaction at the site of calcification and exchange processes between the calicoblastic layer and ambient seawater. Dataset Ocean acidification PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(17.277220,17.277220,41.287780,41.287780) |