Raddatz, Jacek; Rüggeberg, Andres; Flögel, Sascha; Hathorne, Ed C; Liebetrau, Volker; Eisenhauer, Anton; Dullo, Wolf-Christian (2014): The influence of seawater pH on U/ Ca ratios in the scleractinian cold-water coral Lophelia pertusa [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.834573, Supplement to: Raddatz, J et al. (2014): The influence of seawater pH on U / Ca ratios in the scleractinian cold-water coral Lophelia pertusa. Biogeosciences, 11(7), 1863-1871, https://doi.org/10.5194/bg-11-1863-2014
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Abstract:
The increasing pCO2 in seawater is a serious threat for marine calcifiers and alters the biogeochemistry of the ocean. Therefore, the reconstruction of past-seawater properties and their impact on marine ecosystems is an important way to investigate the underlying mechanisms and to better constrain the effects of possible changes in the future ocean. Cold-water coral (CWC) ecosystems are biodiversity hotspots. Living close to aragonite undersaturation, these corals serve as living laboratories as well as archives to reconstruct the boundary conditions of their calcification under the carbonate system of the ocean.
We investigated the reef-building CWC Lophelia pertusa as a recorder of intermediate ocean seawater pH. This species-specific field calibration is based on a unique sample set of live in situ collected L. pertusa and corresponding seawater samples. These data demonstrate that uranium speciation and skeletal incorporation for azooxanthellate scleractinian CWCs is pH dependent and can be reconstructed with an uncertainty of ±0.15. Our Lophelia U / Ca-pH calibration appears to be controlled by the high pH values and thus highlighting the need for future coral and seawater sampling to refine this relationship. However, this study recommends L. pertusa as a new archive for the reconstruction of intermediate water mass pH and hence may help to constrain tipping points for ecosystem dynamics and evolutionary characteristics in a changing ocean.
Keyword(s):
Further details:
Lavigne, Héloïse; Epitalon, Jean-Marie; Gattuso, Jean-Pierre (2014): seacarb: seawater carbonate chemistry with R. R package version 3.0 [webpage]. https://cran.r-project.org/package=seacarb
Project(s):
Coverage:
Median Latitude: 49.484260 * Median Longitude: 1.618408 * South-bound Latitude: 34.999670 * West-bound Longitude: -12.768830 * North-bound Latitude: 70.267330 * East-bound Longitude: 22.456170
Minimum DEPTH, water: 290 m * Maximum DEPTH, water: 837 m
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 2014-07-31.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
171 data points
Data
1 Species | 2 Location | 3 Latitude | 4 Longitude | 5 Temp [°C] | 6 Sal | 7 Depth water [m] | 8 U/Ca [µmol/mol] | 9 pH (total scale) | 10 [CO3]2- [µmol/kg] | 11 Omega Arg | 12 DIC [µmol/kg] | 13 AT [µmol/kg] | 14 CSC flag | 15 CO2 [µmol/kg] | 16 pCO2water_SST_wet [µatm] | 17 fCO2water_SST_wet [µatm] | 18 [HCO3]- [µmol/kg] | 19 [CO3]2- [µmol/kg] | 20 AT [µmol/kg] | 21 Omega Arg | 22 Omega Cal |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lophelia pertusa (coral) | Stjernsund | 70.26733 | 22.45617 | 6.0 | 35.1 | 365 | 1.13 | 8.30 | 209 | 3.03 | 2118 | 2377 | 9 | 10.05 | 200.60 | 199.80 | 1904.15 | 203.81 | 2411.94 | 2.87 | 4.52 |
Lophelia pertusa (coral) | Sula Reef | 64.09967 | 8.09767 | 7.6 | 35.3 | 290 | 1.38 | 8.08 | 124 | 1.74 | 2150 | 2314 | 9 | 16.85 | 356.10 | 354.70 | 1996.02 | 137.13 | 2339.65 | 1.96 | 3.09 |
Lophelia pertusa (coral) | Porcupine Seabight (Galway Mound) | 51.44900 | -11.75267 | 9.5 | 35.5 | 837 | 1.63 | 7.97 | 127 | 1.67 | 2164 | 2333 | 9 | 19.76 | 445.81 | 444.11 | 2022.97 | 121.27 | 2328.15 | 1.58 | 2.47 |
Lophelia pertusa (coral) | Porcupine Seabight (Propeller Mound) | 52.14817 | -12.76883 | 9.4 | 35.5 | 729 | 1.61 | 7.98 | 130 | 1.63 | 2160 | 2333 | 9 | 19.52 | 439.10 | 437.42 | 2018.07 | 122.41 | 2325.90 | 1.63 | 2.54 |
Lophelia pertusa (coral) | Whittard Canyon | 48.77983 | -10.57000 | 9.8 | 35.5 | 835 | 1.59 | 7.97 | 133 | 1.73 | 2157 | 2335 | 9 | 19.54 | 445.28 | 443.58 | 2015.24 | 122.22 | 2322.80 | 1.60 | 2.49 |
Lophelia pertusa (coral) | Guilvinec Canyon | 46.93667 | -5.36000 | 10.3 | 35.6 | 800 | 1.73 | 7.97 | 129 | 1.70 | 2169 | 2340 | 9 | 19.44 | 450.61 | 448.90 | 2024.37 | 125.19 | 2338.72 | 1.65 | 2.57 |
Lophelia pertusa (coral) | Gulf of Cadiz | 34.99967 | -7.07517 | 10.3 | 35.7 | 738 | 1.92 | 7.92 | 119 | 1.43 | 2200 | 2340 | 9 | 22.36 | 518.68 | 516.72 | 2064.09 | 113.55 | 2348.95 | 1.51 | 2.35 |
Lophelia pertusa (coral) | Urania Bank | 36.83900 | 13.15517 | 13.5 | 38.8 | 651 | 1.75 | 8.07 | 278 | 2.83 | 2320 | 2607 | 9 | 14.78 | 386.29 | 384.89 | 2107.96 | 197.26 | 2595.43 | 2.64 | 4.09 |
Lophelia pertusa (coral) | Santa Maria di Leuca | 39.83900 | 18.38333 | 13.7 | 38.8 | 496 | 1.22 | 8.25 | 303 | 4.09 | 2320 | 2742 | 9 | 9.48 | 249.29 | 248.38 | 2024.55 | 285.97 | 2723.61 | 3.93 | 6.09 |