Dataset: Phytoplankton cell counts at 3 pCO2 levels and 2 temperatures before and after 12 month conditioning off New Zealand South Island, near Taiaroa Head, 2011 (Plankton acclimation project)

The study included a short-term two-week temperature/pCO2 factorial matrix incubation experiment using a natural, mixed diatom assemblage, the isolation of clonal cultures from each treatment and conditioning of the clones to the pCO2 and temperature combinations from which they were isolated for 1 year. Finally, the conditioned clones were recombined into artificial communities and allowed to compete, followed by a comparison of final community structure with that observed in the original two-week natural community experiment.

For this dataset, cell abundances of Cylindrotheca fusiformis, Coscinodiscus sp., Thalassiosira sp., Pseudonitzschia delicatissima, Navicula sp and Chaetoceros criophilus assessed after the initial natural community experiment and the 12-month conditioned artificial community incubations at low, medium and high CO2 concentrations and temperatures of 14°C and 19°C. Values given include the three replicate sample counts, the mean of counts and standard deviations on the three replicate bottles.

Experimental Design Chart

Relevant References:

These data are published as Supplemental Table 2 in Avery O. Tatters, Michael Y. Roleda, Astrid Schnetzer, Feixue Fu, Catriona L. Hurd, Philip W. Boyd, David A. Caron, Alle A. Y. Lie, Linn J. Hoffmann and David A. Hutchins.  Research article: Short- and long-term conditioning of a temperate marine diatom community to acidification and warming. Phil. Tras. Roy. Soc. B. 368 (1627) doi: 10.1098/rstb.2012.0437