Citation:

j.jembe.2017.05.014

Name: Seawater carbonate chemistry and Calcium carbonate (CaCO3) sediment dissolution
Published: 2017-09-12
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Laboratory experiment; Macro-nutrients; Mesocosm or benthocosm; Rocky-shore community; South Pacific; Tropical

Always quote citation above when using data! You can download the citation in several formats below.

RIS Citation BibTeX Citation Text Citation Facebook Twitter

Abstract:

Ocean acidification (OA), attributed to the sequestration of atmospheric carbon dioxide (CO2) into the surface ocean, and coastal eutrophication, attributed in part to land-use change and terrestrial runoff of fertilizers, have received recent attention in an experimental framework examining the effects of each on coral reef net ecosystem calcification (Gnet). However, OA and eutrophication in conjunction have yet to receive attention from the perspective of coral reef sediment dissolution. To address this omission, CO2 and nitrate (NO3-) addition experiments were performed in Mo'orea, French Polynesia. Incubation chambers were used to measure sediment Gnet during the day and night under three different [NO3-] (0, 9.8, and 19.7 M) that were nested within four separate constructed coral reef communities maintained at different PCO2 levels (417, 721, 1030, and 1333 ?atm, respectively). PCO2 negatively affected sediment Gnetduring the day and night, resulting in a shift to diel net dissolution at a PCO2 of 1030 µatm. Elevated NO3- alone, and the combination of NO3- and PCO2, both negatively affected sediment Gnet at night. However, the response of Gnet to NO3- was less clear during the day, where diurnal sediment Gnet was enhanced under the combined treatment of elevated NO3- and PCO2, resulting in no net effect of NO3- on sediment Gnet on diel timescales. Overall, these results show that ocean acidification represents a greater threat to the balance of calcification and dissolution in Mo'orea's back reef sediment communities than the potential impact of NO3- enrichment on relatively short timescales.

Keyword(s):

Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Laboratory experiment; Macro-nutrients; Mesocosm or benthocosm; Rocky-shore community; South Pacific; Tropical

Further details:

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

Project(s):

Ocean Acidification International Coordination Centre (OA-ICC)

Comment:

In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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). The date of carbonate chemistry calculation by seacarb is 2017-08-31.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Lantz, Coulson A		study
2	Experiment duration	Exp duration	days	Lantz, Coulson A
3	Experiment	Exp		Lantz, Coulson A
4	Date	Date		Lantz, Coulson A
5	Identification	ID		Lantz, Coulson A		Flume
6	Identification	ID		Lantz, Coulson A		Chamber
7	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lantz, Coulson A		Treatment
8	Comment	Comment		Lantz, Coulson A		Day/night
9	Nitrate	[NO3]-	µmol/l	Lantz, Coulson A
10	Nitrate, standard error	NO3 std e	±	Lantz, Coulson A
11	Salinity	Sal		Lantz, Coulson A
12	Local Time	Local time		Lantz, Coulson A		1
13	Temperature, water	Temp	°C	Lantz, Coulson A		1
14	Spontaneous Potential	SP	mv	Lantz, Coulson A		1
15	pH	pH		Lantz, Coulson A		1, total scale
16	Alkalinity, total	AT	µmol/kg	Lantz, Coulson A		1
17	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lantz, Coulson A		1
18	Local Time	Local time		Lantz, Coulson A		2
19	Temperature, water	Temp	°C	Lantz, Coulson A		2
20	Spontaneous Potential	SP	mv	Lantz, Coulson A		2
21	pH	pH		Lantz, Coulson A		2, total scale
22	Alkalinity, total	AT	µmol/kg	Lantz, Coulson A		2
23	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Lantz, Coulson A		2
24	Alkalinity, total	AT	µmol/kg	Lantz, Coulson A		2
25	Calcification rate	Calc rate	g/m²/day	Lantz, Coulson A		net
26	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
27	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
28	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Yang, Yan	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	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
30	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
31	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
32	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
33	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
34	Calcite saturation state	Omega Cal		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
35	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
36	Fugacity of carbon dioxide (water) at sea surface temperature (wet air)	fCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
37	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
38	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
39	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
40	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
41	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
42	Calcite saturation state	Omega Cal		Yang, Yan	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:

18984 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)