Citation:

grl.50948

Name: Permeable coral reef sediment dissolution driven by elevated pCO2 and pore water advection
Published: 2013
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Coast and continental shelf; Entire community; Field experiment; 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) is expected to drive the transition of coral reef ecosystems from net calcium carbonate (CaCO3) precipitating to net dissolving within the next century. Although permeable sediments represent the largest reservoir of CaCO3 in coral reefs, the dissolution of shallow CaCO3 sands under future pCO2 levels has not been measured under natural conditions. In situ, advective chamber incubations under elevated pCO2 (~800 µatm) shifted the sediments from net precipitating to net dissolving. Pore water advection more than doubled dissolution rates (1.10 g CaCO3/m**2/day) when compared to diffusive conditions (0.42 g CaCO3/m**2 /day). Sediment dissolution could reduce net ecosystem calcification rates of the Heron Island lagoon by 8% within the next century, which is equivalent to a 25% reduction in the global average calcification rate of coral lagoons. The dissolution of CaCO3 sediments needs to be taken into account in order to address how OA will impact the net accretion of coral reefs under future predicted increases in CO2.

Keyword(s):

Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Coast and continental shelf; Entire community; Field experiment; Rocky-shore community; South Pacific; Tropical

Further details:

Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0. 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 (Lavigne et al, 2014) 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 is 2014-07-11.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Identification	ID		Cyronak, Tyler
2	Treatment	Treat		Cyronak, Tyler
3	Oxygen, flux	O2 flux	mmol/m²/h	Cyronak, Tyler		night
4	Alkalinity, total, flux	AT flux	mmol(eq)/m²/h	Cyronak, Tyler		night
5	Oxygen, flux	O2 flux	mmol/m²/h	Cyronak, Tyler		day
6	Alkalinity, total, flux	AT flux	mmol(eq)/m²/h	Cyronak, Tyler		day
7	Oxygen, flux	O2 flux	mmol/m²/day	Cyronak, Tyler		net
8	Alkalinity, total, flux	AT flux	mmol(eq)/m²/day	Cyronak, Tyler		net
9	pH	pH		Cyronak, Tyler	Potentiometric	NBS scale
10	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Cyronak, Tyler	Calculated using CO2SYS
11	Aragonite saturation state	Omega Arg		Cyronak, Tyler	Calculated using CO2SYS
12	Salinity	Sal		Cyronak, Tyler
13	Temperature, water	Temp	°C	Cyronak, Tyler
14	Alkalinity, total	AT	µmol/kg	Cyronak, Tyler	Potentiometric titration
15	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
16	pH	pH		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)	total scale
17	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
18	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)
19	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)
20	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
21	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
22	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
23	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
24	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:

552 data points

Download Data

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

View dataset as HTML