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Reich, Marlis; Wichels, Antje; Panzer, Katrin; Krause, Evamaria; Giménez, Luis; Gerdts, Gunnar (2017): Seawater carbonate chemistry and taxonomic assemblage of fungal communities from the southern North Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.879793, Supplement to: Reich, M et al. (2017): Impacts of a reduction in seawater pH mimicking ocean acidification on the structure and diversity of mycoplankton communities. Aquatic Microbial Ecology, 79(3), 221-233, https://doi.org/10.3354/ame01831

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Abstract:
Increases in atmospheric carbon dioxide (CO2) change ocean chemistry, as dissolved CO2 leads to a reduction in the seawater pH. Many marine taxa have been shown to be affected by ocean acidification; however, information on marine fungi is lacking. We analyzed the effect of pH on mycoplankton communities. The pH of microcosms was adjusted to a value mimicking the predicted ocean acidification in the near future. Fungal communities were analyzed using a double-marker gene approach, allowing a more detailed analysis of their response using 454 pyrosequencing. Mycoplankton communities in microcosms with in situ and adjusted water pH values differed significantly in terms of structure and diversity. The differences were mainly abundance shifts among the dominant taxa, rather than the exclusion of fungal groups. A sensitivity to lower pH values was reported for several groups across the fungal kingdom and was not phylogenetically conserved. Some of the fungal species that dominated the communities of microcosms with a lower pH were known pathogenic fungi. With the increasing awareness of the significant role fungi play in marine systems, including performing a diverse range of symbiotic activities, our results highlight the importance of including fungi in further research projects studying and modeling biotic responses to the predicted ocean acidification.
Keyword(s):
Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Community composition and diversity; Entire community; Laboratory experiment; North Atlantic; Pelagos; Temperate
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise; 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
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 by seacarb is 2017-08-22.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeReich, Marlisstudy
2Experiment durationExp durationdaysReich, Marlis
3GroupGroupReich, MarlisFungal
4Incubation durationInc durweeksReich, Marlis
5TreatmentTreatReich, Marlis
6AbundanceAbund%Reich, MarlisRelative sequence abundance based on internal transcribed spacer (ITS)
7AbundanceAbund%Reich, MarlisRelative sequence abundance based on 18S rDNA datasets
8Temperature, waterTemp°CReich, Marlis
9SalinitySalReich, Marlis
10pHpHReich, MarlisNBS scale
11pH, standard deviationpH std dev±Reich, MarlisNBS scale
12Alkalinity, totalATµmol/kgReich, Marlis
13Alkalinity, total, standard deviationAT std dev±Reich, Marlis
14Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmReich, Marlis
15Partial pressure of carbon dioxide, respiration, standard deviationpCO2 resp std dev±Reich, Marlis
16Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
17pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
18Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
7488 data points

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