Citation:

rspb.2011.1763

Name: Seawater carbonate chemistry, nutrients and calcification during experiments with cold-water scleractinian corals (Lophelia pertusa, Madrepora oculata and Desmophyllum dianthus), 2011
Published: 2012
License: https://creativecommons.org/licenses/by/3.0/
Keywords: 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

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Abstract:

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 partial pressure of CO2 (pCO2) were the same for ambient and elevated pCO2 (404 and 867 µatm) with 0.06 ± 0.06% d-1, while calcification was 0.12 ± 0.06% d-1 when pCO2 was reduced to its pre-industrial level (285 µatm). This suggests that present-day CWC calcification in the Mediterranean Sea has already drastically declined (by 50%) as a consequence of anthropogenic-induced ocean acidification.

Keyword(s):

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

Project(s):

European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)

European Project on Ocean Acidification (EPOCA)

Ocean Acidification International Coordination Centre (OA-ICC)

Funding:

Seventh Framework Programme (FP7), grant/award no. 211384 : European Project on Ocean Acidification

Sixth Framework Programme (FP6), grant/award no. 511106 : European network of excellence for Ocean Ecosystems Analysis

Comment:

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).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Identification	ID		Maier, Cornelia
2	Site	Site		Maier, Cornelia
3	Species	Species		Maier, Cornelia
4	Experiment day	Exp day	day	Maier, Cornelia
5	Replicates	Repl	#	Maier, Cornelia
6	Coral polyp	Polyp	#	Maier, Cornelia
7	Coral polyp, standard deviation	Polyp std dev	±	Maier, Cornelia
8	Lophelia pertusa, tissue, dry weight	L. pertusa tis DW	mg	Maier, Cornelia	Measured
9	Lophelia pertusa, tissue, dry weight, standard error	L. pertusa tis DW std e	±	Maier, Cornelia
10	Madrepora oculata, dry weight	M. oculata DW	mg	Maier, Cornelia	Measured
11	Madrepora oculata, dry weight, standard deviation	M. oculata DW std dev	±	Maier, Cornelia
12	Desmophyllum sp., dry weight	Desmophyllum sp. DW	mg	Maier, Cornelia	Measured
13	Desmophyllum sp., dry weight, standard deviation	Desmophyllum sp. DW std dev	±	Maier, Cornelia
14	Salinity	Sal		Maier, Cornelia
15	Temperature, water	Temp	°C	Maier, Cornelia
16	Carbon, inorganic, dissolved	DIC	µmol/kg	Maier, Cornelia	AIRICA analyzer (Miranda)
17	Carbon, inorganic, dissolved, standard deviation	DIC std dev	±	Maier, Cornelia
18	Alkalinity, total	AT	µmol/kg	Maier, Cornelia	Metrohm Titrando titrator
19	Alkalinity, total, standard deviation	AT std dev	±	Maier, Cornelia
20	Phosphate	PHSPHT	µmol/kg	Maier, Cornelia
21	Phosphate, standard deviation	[PO4]3- std dev	±	Maier, Cornelia
22	Ammonium	[NH4]+	µmol/kg	Maier, Cornelia
23	Ammonium, standard deviation	[NH4]+ std dev	±	Maier, Cornelia
24	Calcification rate	Calc rate	%/day	Maier, Cornelia	Alkalinity anomaly technique (Smith and Key, 1975)
25	Calcification rate, standard deviation	Calc rate std dev	±	Maier, Cornelia
26	Carbonate system computation flag	CSC flag		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
27	pH	pH		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)	Total scale
28	Carbon dioxide	CO2	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
29	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
30	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
31	Bicarbonate ion	[HCO3]-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
32	Carbonate ion	[CO3]2-	µmol/kg	Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
33	Aragonite saturation state	Omega Arg		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)
34	Calcite saturation state	Omega Cal		Nisumaa, Anne-Marin	Calculated using seacarb after Nisumaa et al. (2010)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

608 data points

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