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Gao, Guang; Wang, Tifeng; Sun, J; Zhao, X; Wang, Lifang; Guo, Xianghui; Gao, Kunshan (2022): Seawater carbonate chemistry and phytoplankton productivity between coastal and offshore surface waters in the Taiwan Strait and the South China Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.953365

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Abstract:
Seawater acidification (SA) has been documented to either inhibit, enhance, or result in no effect on marine primary productivity (PP). In order to examine the effects of SA in changing environments, we investigated the influences of SA (a decrease of 0.4 pHtotal units with corresponding CO2 concentrations in the range of 22.0–39.7 µM) on PP through deck-incubation experiments at 101 stations in the Taiwan Strait and the South China Sea, including the continental shelf and slope, as well as the deep-water basin. The daily primary productivities in surface seawater under incident solar radiation ranged from 17–306 µg C/µg Chl a/d, with the responses of PP to SA being region-dependent and the SA-induced changes varying from −88 % (inhibition) to 57 % (enhancement). The SA treatment stimulated PP in surface waters of coastal, estuarine, and shelf waters but suppressed it in the South China Sea basin. Such SA-induced changes in PP were significantly related to in situ pH and solar radiation in surface seawater but negatively related to salinity changes. Our results indicate that phytoplankton cells are more vulnerable to a pH drop in oligotrophic waters. Contrasting responses of phytoplankton productivity in different areas suggest that SA impacts on marine primary productivity are region-dependent and regulated by local environments.
Keyword(s):
Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Entire community; Laboratory experiment; North Pacific; Open ocean; Pelagos; Primary production/Photosynthesis; Temperate
Supplement to:
Gao, Guang; Wang, Tifeng; Sun, J; Zhao, X; Wang, Lifang; Guo, Xianghui; Gao, Kunshan (2022): Contrasting responses of phytoplankton productivity between coastal and offshore surface waters in the Taiwan Strait and the South China Sea to short-term seawater acidification. Biogeosciences, 19(11), 2795-2804, https://doi.org/10.5194/bg-19-2795-2022
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Median Latitude: 17.160204 * Median Longitude: 114.689692 * South-bound Latitude: 10.000000 * West-bound Longitude: 110.000000 * North-bound Latitude: 26.049383 * East-bound Longitude: 120.440733
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2023-01-05.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeGao, KunshanStudy
2Station labelStationGao, Kunshan
3LONGITUDELongitudeGao, KunshanGeocode
4LATITUDELatitudeGao, KunshanGeocode
5Temperature, waterTemp°CGao, Kunshan
6SalinitySalGao, Kunshan
7IrradianceEW/m2Gao, Kunshan
8Chlorophyll aChl aµg/lGao, Kunshan
9TreatmentTreatGao, Kunshan
10Primary production of carbon per chlorophyll aPP C/Chl aµg/µg/dayGao, Kunshan
11ChangeChange%Gao, KunshanPrimary productivity change induced by high CO2
12pHpHGao, Kunshantotal scale, measured after 24 h incubation
13pH, standard deviationpH std dev±Gao, Kunshantotal scale, measured after 24 h incubation
14Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmGao, KunshanCalculated using CO2SYSafter 24 h incubation
15Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Gao, KunshanCalculated using CO2SYSafter 24 h incubation
16Carbon, inorganic, dissolvedDICµmol/kgGao, KunshanCalculated using CO2SYSafter 24 h incubation
17Carbon, inorganic, dissolved, standard deviationDIC std dev±Gao, KunshanCalculated using CO2SYSafter 24 h incubation
18Bicarbonate ion[HCO3]-µmol/kgGao, KunshanCalculated using CO2SYSafter 24 h incubation
19Bicarbonate ion, standard deviation[HCO3]- std dev±Gao, KunshanCalculated using CO2SYSafter 24 h incubation
20Carbonate ion[CO3]2-µmol/kgGao, KunshanCalculated using CO2SYSafter 24 h incubation
21Carbonate ion, standard deviation[CO3]2- std dev±Gao, KunshanCalculated using CO2SYSafter 24 h incubation
22Carbon dioxideCO2µmol/kgGao, KunshanCalculated using CO2SYSafter 24 h incubation
23Carbon dioxide, standard deviationCO2 std dev±Gao, KunshanCalculated using CO2SYSafter 24 h incubation
24Alkalinity, totalATµmol/kgGao, Kunshanmeasured after 24 h incubation
25Alkalinity, total, standard deviationAT std dev±Gao, Kunshanmeasured after 24 h incubation
26Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
27Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
28Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
29Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
30Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
31Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
32Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
33Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
34Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)after 24 h incubation
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
6363 data points

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