Effects of acute ocean acidification on spatially-diverse polar pelagic foodwebs:Insights from on-deck microcosms ...

• Main Authors: Tarling, Geraint A, Peck, Victoria L, Ward, Peter, Ensor, N S, Achterberg, Eric Pieter, Tynan, Eithne, Poulton, Alex J, Mitchell, E, Zubkov, Mikhail V
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Antarctic; Arctic; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Community composition and diversity; Entire community; Laboratory experiment; Open ocean; Pelagos; Polar; Event label; Type; Station label; Treatment; Time in hours; Carbon mass; Carbon mass, standard deviation; Hydrogen content; Hydrogen, standard deviation; Nitrogen mass; Nitrogen, standard deviation; Carbon/Nitrogen ratio; Carbon/Nitrogen ratio, standard deviation; Bottle number; Temperature, water; Salinity; Nitrate and Nitrite; Silicate; Phosphate; Alkalinity, total; Carbon, inorganic, dissolved; Ammonium; Transparent exopolymer particles as Gum Xanthan equivalents per volume; Diatoms; Dinoflagellates; Ciliates; Flagellates; Nanoflagellates, heterotrophic; Nanoflagellates, phototrophic; Bacteria; Bacteria, low DNA fluorescence; Bacteria, high DNA fluorescence; Nanoflagellates; Carbonate system computation flag; pH; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Weddell; Antarc*; Nordic Seas; Ocean acidification; Copepods
• Online Access: https://dx.doi.org/10.1594/pangaea.869124; https://doi.pangaea.de/10.1594/PANGAEA.869124

The polar oceans are experiencing some of the largest levels of ocean acidification (OA) resulting from the uptake of anthropogenic carbon dioxide (CO2). Our understanding of the impacts this is having on polar marine communities is mainly derived from studies of single species in laboratory conditions, while the consequences for food web interactions remain largely unknown. This study carried out experimental manipulations of natural pelagic communities at different high latitude sites in both the northern (Nordic Seas) and southern hemispheres (Scotia and Weddell Seas). The aim of this study was to identify more generic responses and greater experimental reproducibility through implementing a series of short term (4 day), multilevel (3 treatment) carbonate chemistry manipulation experiments on unfiltered natural surface ocean communities, including grazing copepods. The experiments were successfully executed at six different sites, covering a diverse range of environmental conditions and differing plankton ... : 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 is 2016-11-30. ...