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Karuza, Ana; Celussi, Mauro; Cibic, Tamara; Del Negro, Paola; De Vittor, Cinzia (2012): Seawater carbonate chemistry, virioplankton and bacterioplankton in a shallow CO2-dominated hydrothermal vent (Panarea Island, Tyrrhenian Sea) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.778196, Supplement to: Karuza, A et al. (2012): Virioplankton and bacterioplankton in a shallow CO2-dominated hydrothermal vent (Panarea Island, Tyrrhenian Sea). Estuarine, Coastal and Shelf Science, 97, 10-18, https://doi.org/10.1016/j.ecss.2011.10.027

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Abstract:
Gas hydrothermal vents are used as a natural analogue for studying the effects of CO2 leakage from hypothetical shallow marine storage sites on benthic and pelagic systems. This study investigated the interrelationships between planktonic prokaryotes and viruses in the Panarea Islands hydrothermal system (southern Tyrrhenian Sea, Italy), especially their abundance, distribution and diversity. No difference in prokaryotic abundance was shown between high-CO2 and control sites. The community structure displayed differences between fumarolic field and the control, and between surface and bottom waters, the latter likely due to the presence of different water masses. Bacterial assemblages were qualitatively dominated by chemo- and photoautotrophic organisms, able to utilise both CO2 and H2S for their metabolic requirements. From significantly lower virioplankton abundance in the proximity of the exhalative area together with particularly low Virus-to-Prokaryotes Ratio, we inferred a reduced impact on prokaryotic abundance and proliferation. Even if the fate of viruses in this particular condition remains still unknown, we consider that lower viral abundance could reflect in enhancing the energy flow to higher trophic levels, thus largely influencing the overall functioning of the system.
Keyword(s):
Biomass/Abundance/Elemental composition; CO2 vent; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; Mediterranean Sea; Pelagos; Temperate
Project(s):
European network of excellence for Ocean Ecosystems Analysis (EUR-OCEANS)
European Project on Ocean Acidification (EPOCA)
Ocean Acidification International Coordination Centre (OA-ICC)
Funding:
Seventh Framework Programme (FP7), grant/award no. 211384: European Project on Ocean Acidification
Sixth Framework Programme (FP6), grant/award no. 511106: European network of excellence for Ocean Ecosystems Analysis
Coverage:
Median Latitude: 38.634024 * Median Longitude: 15.100829 * South-bound Latitude: 38.633611 * West-bound Longitude: 15.100278 * North-bound Latitude: 38.634444 * East-bound Longitude: 15.101389
Minimum DEPTH, water: 0.5 m * Maximum DEPTH, water: 24.5 m
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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1IdentificationIDKaruza, Ana
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4DEPTH, waterDepth watermGeocode
5SalinitySalKaruza, Ana
6Temperature, waterTemp°CKaruza, Ana
7Oxygen saturationO2 sat%Karuza, Ana
8pHpHKaruza, Ana
9Carbon, inorganic, dissolvedDICmg/lKaruza, AnaInfrared spectroscopy
10Carbon, organic, dissolvedDOCmg/lKaruza, AnaCalculated, see reference(s)
11Viral abundanceVirus#/mlKaruza, Anasee reference(s)
12Virus, standard deviationVirus std dev±Karuza, Ana
13ProkaryotesProkaryotes#/mlKaruza, AnaEpifluorescence microscopy
14Prokaryotes, standard deviationProk std dev±Karuza, AnaCalculated
15Viruses/prokaryotes ratioVirus/ProkarKaruza, AnaCalculated
16DensityDensityg/cm3Karuza, AnaCalculated
17Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
18pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
19Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
20Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
21Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
22Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
23Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
24Carbon, inorganic, dissolvedDICµmol/kgKaruza, AnaCalculated
25Alkalinity, totalATµmol/kgKaruza, AnaCalculated using CO2SYS
26Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
27Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
4444 data points

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