Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

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.

RIS CitationBibTeX CitationShow MapGoogle Earth

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):
Ammonia aomoriensis; Baltic Sea; Benthos; Bottles or small containers/Aquaria ( 20 L); Chromista; Coast and continental shelf; Forams; Growth/Morphology; Heterotrophic prokaryotes; Laboratory experiment; Mortality/Survival; Single species; Temperate
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):
Ocean Acidification International Coordination Centre (OA-ICC)
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):
Flensburg_Fjord * Latitude: 54.801370 * Longitude: 9.884480 * Date/Time Start: 2009-06-01T00:00:00 * Date/Time End: 2009-06-30T00:00:00 * Elevation: -13.0 m * Device: Experiment (EXP)
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):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1SpeciesSpeciesHaynert, Kristin
2Size fractionFractionHaynert, Kristin
3Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmHaynert, Kristin
4Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Haynert, Kristin
5ReplicatesRepl#Haynert, Kristin
6Diameter changeØ changeµmHaynert, Kristin
7Incubation durationInc durdaysHaynert, Kristin
8DiameterصmHaynert, Kristin
9Diameter, standard deviationØ std dev±Haynert, Kristin
10Number of specimensNo spec#Haynert, Kristinlost
11Number of specimensNo spec#Haynert, Kristindead
12Number of specimensNo spec#Haynert, Kristinliving
13Number of specimensNo spec#Haynert, Kristinsurviving the experiment
14Number of specimensNo spec#Haynert, Kristinshowing no growth
15Number of specimensNo spec#Haynert, Kristingrown by 1 chamber
16Number of specimensNo spec#Haynert, Kristingrown by 2 chambers
17Number of specimensNo spec#Haynert, Kristingrown by 3 chambers
18Number of specimensNo spec#Haynert, Kristingrown by 4 chambers
19Number of specimensNo spec#Haynert, Kristinaverage chamber addition
20PercentagePerc%Haynert, Kristinpercentage showing growth
21SalinitySalHaynert, Kristin
22Salinity, standard deviationSal std dev±Haynert, Kristin
23Temperature, waterTemp°CHaynert, Kristin
24Temperature, water, standard deviationTemp std dev±Haynert, Kristin
25pHpHHaynert, KristinPotentiometricNBS scale
26pH, standard deviationpH std dev±Haynert, KristinPotentiometricNBS scale
27Alkalinity, totalATµmol/kgHaynert, KristinPotentiometric titration
28Alkalinity, total, standard deviationAT std dev±Haynert, KristinPotentiometric titration
29Carbon, inorganic, dissolvedDICµmol/kgHaynert, KristinCalculated using CO2SYS
30Carbon, inorganic, dissolved, standard deviationDIC std dev±Haynert, KristinCalculated using CO2SYS
31Calcite saturation stateOmega CalHaynert, KristinCalculated using CO2SYS
32Calcite saturation state, standard deviationOmega Cal std dev±Haynert, KristinCalculated using CO2SYS
33Phosphate[PO4]3-µmol/lHaynert, Kristin
34Phosphate, standard deviationPO4 std dev±Haynert, Kristin
35Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
37Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
42Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
43Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
44Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
CC-BY-3.0 Creative Commons Attribution 3.0 Unported
Size:
4713 data points

Download Data

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

View dataset as HTML (shows only first 2000 rows)