Citation:

2016GL068723

Name: Interannual stability of organic to inorganic carbon production on a coral atoll
Published: 2016-12-09
License: https://creativecommons.org/licenses/by/3.0/
Keywords: Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Field observation; Primary production/Photosynthesis; Rocky-shore community; South Pacific; Temperate

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Abstract:

Ocean acidification has the potential to adversely affect marine calcifying organisms, with substantial ocean ecosystem impacts projected over the 21st century. Characterizing the in situ sensitivity of calcifying ecosystems to natural variability in carbonate chemistry may improve our understanding of the long-term impacts of ocean acidification. We explore the potential for intensive temporal sampling to isolate the influence of carbonate chemistry on community calcification rates of a coral reef and compare the ratio of organic to inorganic carbon production to previous studies at the same location. Even with intensive temporal sampling, community calcification displays only a weak dependence on carbonate chemistry variability. However, across three years of sampling, the ratio of organic to inorganic carbon production is highly consistent. Although further work is required to quantify the spatial variability associated with such ratios, this suggests that these measurements have the potential to indicate the response of coral reefs to ongoing disturbance, ocean acidification, and climate change.

Keyword(s):

Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Field observation; Primary production/Photosynthesis; Rocky-shore community; South Pacific; Temperate

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)

Coverage:

Latitude: -23.500000 * Longitude: 152.100000

Date/Time Start: 2014-09-12T00:00:00 * Date/Time End: 2014-10-10T00:00:00

Event(s):

One_Tree_Island_OA * Latitude: -23.500000 * Longitude: 152.100000 * Date/Time Start: 2014-09-12T00:00:00 * Date/Time End: 2014-10-10T00:00:00 * Method/Device: Experiment (EXP)

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 is 2016-12-09.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Type	Type		Kwiatkowski, Lester		study
2	Time point, descriptive	Time point		Kwiatkowski, Lester		time between two consecutive water samples
3	Calcification rate of calcium carbonate	Calc rate CaCO3	mmol/m²/h	Kwiatkowski, Lester		net community
4	Net photosynthesis rate	PN	mmol/m²/h	Kwiatkowski, Lester		community
5	pH	pH		Kwiatkowski, Lester	Spectrophotometric	total scale
6	Aragonite saturation state	Omega Arg		Kwiatkowski, Lester	Calculated using CO2SYS
7	Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)	pCO2water_SST_wet	µatm	Kwiatkowski, Lester	Calculated using CO2SYS
8	Bicarbonate ion	[HCO3]-	µmol/kg	Kwiatkowski, Lester	Calculated using CO2SYS
9	Irradiance	E	µmol/m²/s	Kwiatkowski, Lester
10	Temperature, water	Temp	°C	Kwiatkowski, Lester
11	Carbon, inorganic, dissolved	DIC	µmol/kg	Kwiatkowski, Lester	Calculated using CO2SYS
12	Alkalinity, total	AT	µmol/kg	Kwiatkowski, Lester	Potentiometric titration
13	Salinity	Sal		Kwiatkowski, Lester
14	Carbonate system computation flag	CSC flag		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
15	Carbon dioxide	CO2	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
16	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)
17	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)
18	Bicarbonate ion	[HCO3]-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
19	Carbonate ion	[CO3]2-	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
20	Carbon, inorganic, dissolved	DIC	µmol/kg	Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
21	Aragonite saturation state	Omega Arg		Yang, Yan	Calculated using seacarb after Nisumaa et al. (2010)
22	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:

4158 data points

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