Dataset: Data on phytoplankton physiology and iron and temperature interactions collected in the Ross Sea during 2013 (Ross Sea Microb Ecophys project)

Final no updates expectedVersion 2015-12-08 (2015-12-08)Dataset Type:experimental

Principal Investigator: David A. Hutchins (University of Southern California)

Co-Principal Investigator: Andrew E. Allen (J. Craig Venter Institute)

Co-Principal Investigator: Deborah A. Bronk (Virginia Institute of Marine Science)

Student: Zhi Zhu (University of Southern California)

BCO-DMO Data Manager: Nancy Copley (Woods Hole Oceanographic Institution)


Project: Synergistic Effects of Iron, Carbon Dioxide and Temperature on the Fate of Nitrate: Implications for Future Changes in Export Production in the Southern Ocean (Ross_Sea_Microb_Ecophys)

There are five species/strains of phytoplankton: Pseudo-nitzschia subcurvata LN, Pseudo-nitzschia subcurvata HN, Chaetoceros sp. LN, Fragilariopsis cylindrus HN, and Phaeocystis antarctica HN. The physiological response of these five species/strains to four treatments was investigated: 0°C-Fe limited (1nM),  0°C-Fe replete (500nM),  4°C-Fe limited (1nM),  4°C-Fe replete (500nM).

We report: carbon fixation rates, Fe uptake rates, Fe uptake rates to carbon fixation rates ratio; carbon quota, nitrogen quota, phosphorus quota, and silicate quota; cell volume, cell surface area to cell volume ratios; carbon quota to Chl a ratio, Chl a per cell; and Fv/Fm of Pseudo-nitzschia subcurvata LN and Chaetoceros sp. LN .


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