research data . Other dataset type . Dataset . 2013

Iron limitation modulates ocean acidification effects on southern ocean phytoplankton communities, supplement to: Hoppe, Clara Jule Marie; Hassler, Christel S; Payne, Christopher D; Tortell, Philippe Daniel; Rost, Bjoern; Trimborn, Scarlett (2013): Iron limitation modulates ocean acidification effects in Southern Ocean phytoplankton communities. PLoS ONE, 8(11), e79890

Hoppe, Clara Jule Marie; Hassler, Christel S; Payne, Christopher D; Tortell, Philippe Daniel; Rost, Bjoern; Trimborn, Scarlett;
Open Access English
  • Published: 01 Jan 2013
  • Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
The potential interactive effects of iron (Fe) limitation and Ocean Acidification in the Southern Ocean (SO) are largely unknown. Here we present results of a long-term incubation experiment investigating the combined effects of CO2 and Fe availability on natural phytoplankton assemblages from the Weddell Sea, Antarctica. Active Chl a fluorescence measurements revealed that we successfully cultured phytoplankton under both Fe-depleted and Fe-enriched conditions. Fe treatments had significant effects on photosynthetic efficiency (Fv/Fm; 0.3 for Fe-depleted and 0.5 for Fe-enriched conditions), non-photochemical quenching (NPQ), and relative electron transport rate...
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Medical Subject Headings: fungi
free text keywords: Antarctic, Bottles or small containers/Aquaria (&lt;20 L), Community composition and diversity, Entire community, Laboratory experiment, Micro-nutrients, Open ocean, Pelagos, Polar, Primary production/Photosynthesis, Table, Figure, Date, Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), Treatment, Identification, Photosynthetic efficiency, Net primary production of carbon per particulate organic carbon, Chlorophyll a/particulate organic carbon ratio, Effective absorbance cross-section of photosystem II, Non photochemical quenching, Electron transport rate, relative, Species, Percentage, Percentage, standard deviation, Iron, dissolved, Iron, dissolved, standard deviation, Salinity, Temperature, water, Phosphate, Silicate, Carbon, inorganic, dissolved, Carbon, inorganic, dissolved, standard deviation, Alkalinity, total, Alkalinity, total, standard deviation, pH, pH, standard deviation, Partial pressure of carbon dioxide, standard deviation, Carbonate system computation flag, Carbon dioxide, Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Bicarbonate ion, Carbonate ion, Aragonite saturation state, Calcite saturation state, Coulometric titration, Potentiometric titration, Potentiometric, Calculated using seacarb after Nisumaa et al. (2010), Ocean Acidification International Coordination Centre (OA-ICC), Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas (SPP1158), Bottles or small containers/Aquaria (<20 L)
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Funded by
New approaches to assess the responses of phytoplankton to Global Change
  • Funder: European Commission (EC)
  • Project Code: 205150
  • Funding stream: FP7 | SP2 | ERC
  • Funder: Natural Sciences and Engineering Research Council of Canada (NSERC)
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