Seawater carbonate chemistry, nutrients and calcification during experiments with cold-water scleractinian corals (Lophelia pertusa, Madrepora oculata and Desmophyllum dianthus), 2011 ...

• Main Authors: Maier, Cornelia, Watremez, P, Taviani, Marco, Weinbauer, Markus G, Gattuso, Jean-Pierre
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Animalia; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Cnidaria; Deep-sea; Desmophyllum sp.; Laboratory experiment; Lophelia pertusa; Madrepora oculata; Mediterranean Sea; Single species; Temperate; Identification; Site; Species; Experiment day; Replicates; Coral polyp; Coral polyp, standard deviation; Lophelia pertusa, tissue, dry weight; Lophelia pertusa, tissue, dry weight, standard error; Madrepora oculata, dry weight; Madrepora oculata, dry weight, standard deviation; Desmophyllum sp., dry weight; Desmophyllum sp., dry weight, standard deviation; Salinity; Temperature, water; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Phosphate; Phosphate, standard deviation; Ammonium; Ammonium, standard deviation; Calcification rate; Calcification rate, standard deviation; Carbonate system computation flag; pH; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Measured; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.772704; https://doi.pangaea.de/10.1594/PANGAEA.772704

Global environmental changes, including ocean acidification, have been identified as a major threat to scleractinian corals. General predictions are that ocean acidification will be detrimental to reef growth and that 40 to more than 80 per cent of present-day reefs will decline during the next 50 years. Cold-water corals (CWCs) are thought to be strongly affected by changes in ocean acidification owing to their distribution in deep and/or cold waters, which naturally exhibit a CaCO3 saturation state lower than in shallow/warm waters. Calcification was measured in three species of Mediterranean cold-water scleractinian corals (Lophelia pertusa, Madrepora oculata and Desmophyllum dianthus) on-board research vessels and soon after collection. Incubations were performed in ambient sea water. The species M. oculata was additionally incubated in sea water reduced or enriched in CO2. At ambient conditions, calcification rates ranged between -0.01 and 0.23% d-1. Calcification rates of M. oculata under variable ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). ...