1. Biosphere 2 Marine Algae Brandon Fergusson

2. Experiment Study effects of increasing atmospheric CO 2 on marine organisms

3. Biosphere2 Ocean

5. Algae Data Over 60 species present Sampled almost monthly –Biomass per species Physical data every 15 minutes –Light –CO 2 January 1998 – February 2003

6. Data Considered Total algae biomass Amphiroa fragillissima biomass Velonia aegagropila biomass Outside light Inside CO 2

11. Correlations LightCO 2 Sample size (n)Correlation (r)Sample size (n)Correlation (r) Total Algae200.22323-0.041 A. fragillissima20 0.391 23 -0.373 V. aegagropila130.01416-0.013