Seawater carbonate chemistry, virioplankton and bacterioplankton in a shallow CO2-dominated hydrothermal vent (Panarea Island, Tyrrhenian Sea) ...

• Main Authors: Karuza, Ana, Celussi, Mauro, Cibic, Tamara, Del Negro, Paola, De Vittor, Cinzia
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Biomass/Abundance/Elemental composition; CO2 vent; Coast and continental shelf; Community composition and diversity; Entire community; Field observation; Mediterranean Sea; Pelagos; Temperate; Identification; LATITUDE; LONGITUDE; DEPTH, water; Salinity; Temperature, water; Oxygen saturation; pH; Carbon, inorganic, dissolved; Carbon, organic, dissolved; Viral abundance; Virus, standard deviation; Prokaryotes; Prokaryotes, standard deviation; Viruses/prokaryotes ratio; Density; Carbonate system computation flag; pH, total scale; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Alkalinity, total; Aragonite saturation state; Calcite saturation state; Infrared spectroscopy; Calculated, see references; see references; Epifluorescence microscopy; Calculated; Calculated using seacarb after Nisumaa et al. 2010; Calculated using CO2SYS; European network of excellence for Ocean Ecosystems Analysis EUR-OCEANS; European Project on Ocean Acidification EPOCA; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.778196; https://doi.pangaea.de/10.1594/PANGAEA.778196

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 ... : 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). ...