Haynert, Kristin; Schönfeld, Joachim; Riebesell, Ulf; Polovodova Asteman, Irina (2011): Seawater carbonate chemistry and biometry and dissolution features of the benthic foraminifer Ammonia aomoriensis in a laboratory experiment. PANGAEA, https://doi.org/10.1594/PANGAEA.829879, Supplement to: Haynert, K et al. (2011): Biometry and dissolution features of the benthic foraminifer Ammonia aomoriensis at high pCO2. Marine Ecology Progress Series, 432, 53-67, https://doi.org/10.3354/meps09138
Always quote above citation when using data! You can download the citation in several formats below.
Abstract:
Culturing experiments were performed with the benthic foraminifer Ammonia aomoriensis from Flensburg Fjord, western Baltic Sea. The experiments simulated a projected rise in atmospheric CO2 concentrations. We exposed specimens to 5 seawater pCO2 levels ranging from 618 µatm (pH 7.9) to 3130 µatm (pH 7.2) for 6 wk. Growth rates and mortality differed significantly among pCO2 treatments. The highest increase of mean test diameter (19%) was observed at 618 µatm. At partial pressures >1829 µatm, the mean test diameter was observed to decrease, by up to 22% at 3130 µatm. At pCO2 levels of 618 and 751 µatm, A. aomoriensis tests were found intact after the experiment. The outer chambers of specimens incubated at 929 and 1829 µatm were severely damaged by corrosion. Visual inspection of specimens incubated at 3130 µatm revealed wall dissolution of all outer chambers, only their inner organic lining stayed intact. Our results demonstrate that pCO2 values of >=929 µatm in Baltic Sea waters cause reduced growth of A. aomoriensis and lead to shell dissolution. The bottom waters in Flensburg Fjord and adjacent areas regularly experience pCO2 levels in this range during summer and fall. Increasing atmospheric CO2 concentrations are likely to extend and intensify these periods of undersaturation. This may eventually slow down calcification in A. aomoriensis to the extent that net carbonate precipitation terminates. The possible disappearance of this species from the Baltic Sea and other areas prone to seasonal undersaturation would likely cause significant shifts in shallow-water benthic ecosystems in the near future.
Keyword(s):
Further details:
Lavigne, Héloise; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4. https://cran.r-project.org/package=seacarb
Project(s):
Coverage:
Latitude: 54.801370 * Longitude: 9.884480
Date/Time Start: 2009-06-01T00:00:00 * Date/Time End: 2009-06-30T00:00:00
Minimum Elevation: -13.0 m * Maximum Elevation: -13.0 m
Event(s):
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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 2014-02-24.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method | Comment |
---|---|---|---|---|---|---|
1 | Species | Species | Haynert, Kristin | |||
2 | Size fraction | Fraction | Haynert, Kristin | |||
3 | Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) | pCO2water_SST_wet | µatm | Haynert, Kristin | ||
4 | Partial pressure of carbon dioxide, standard deviation | pCO2 std dev | ± | Haynert, Kristin | ||
5 | Replicates | Repl | # | Haynert, Kristin | ||
6 | Diameter change | Ø change | µm | Haynert, Kristin | ||
7 | Incubation duration | Inc dur | days | Haynert, Kristin | ||
8 | Diameter | Ø | µm | Haynert, Kristin | ||
9 | Diameter, standard deviation | Ø std dev | ± | Haynert, Kristin | ||
10 | Number of specimens | No spec | # | Haynert, Kristin | lost | |
11 | Number of specimens | No spec | # | Haynert, Kristin | dead | |
12 | Number of specimens | No spec | # | Haynert, Kristin | living | |
13 | Number of specimens | No spec | # | Haynert, Kristin | surviving the experiment | |
14 | Number of specimens | No spec | # | Haynert, Kristin | showing no growth | |
15 | Number of specimens | No spec | # | Haynert, Kristin | grown by 1 chamber | |
16 | Number of specimens | No spec | # | Haynert, Kristin | grown by 2 chambers | |
17 | Number of specimens | No spec | # | Haynert, Kristin | grown by 3 chambers | |
18 | Number of specimens | No spec | # | Haynert, Kristin | grown by 4 chambers | |
19 | Number of specimens | No spec | # | Haynert, Kristin | average chamber addition | |
20 | Percentage | Perc | % | Haynert, Kristin | percentage showing growth | |
21 | Salinity | Sal | Haynert, Kristin | |||
22 | Salinity, standard deviation | Sal std dev | ± | Haynert, Kristin | ||
23 | Temperature, water | Temp | °C | Haynert, Kristin | ||
24 | Temperature, water, standard deviation | Temp std dev | ± | Haynert, Kristin | ||
25 | pH | pH | Haynert, Kristin | Potentiometric | NBS scale | |
26 | pH, standard deviation | pH std dev | ± | Haynert, Kristin | Potentiometric | NBS scale |
27 | Alkalinity, total | AT | µmol/kg | Haynert, Kristin | Potentiometric titration | |
28 | Alkalinity, total, standard deviation | AT std dev | ± | Haynert, Kristin | Potentiometric titration | |
29 | Carbon, inorganic, dissolved | DIC | µmol/kg | Haynert, Kristin | Calculated using CO2SYS | |
30 | Carbon, inorganic, dissolved, standard deviation | DIC std dev | ± | Haynert, Kristin | Calculated using CO2SYS | |
31 | Calcite saturation state | Omega Cal | Haynert, Kristin | Calculated using CO2SYS | ||
32 | Calcite saturation state, standard deviation | Omega Cal std dev | ± | Haynert, Kristin | Calculated using CO2SYS | |
33 | Phosphate | [PO4]3- | µmol/l | Haynert, Kristin | ||
34 | Phosphate, standard deviation | PO4 std dev | ± | Haynert, Kristin | ||
35 | Carbonate system computation flag | CSC flag | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | ||
36 | pH | pH | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | total scale | |
37 | Carbon dioxide | CO2 | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
38 | 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) | |
39 | 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) | |
40 | Bicarbonate ion | [HCO3]- | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
41 | Carbonate ion | [CO3]2- | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
42 | Carbon, inorganic, dissolved | DIC | µmol/kg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | |
43 | Aragonite saturation state | Omega Arg | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) | ||
44 | Calcite saturation state | Omega Cal | Yang, Yan | Calculated using seacarb after Nisumaa et al. (2010) |
Size:
4713 data points
Download Data
View dataset as HTML (shows only first 2000 rows)