1. 700m water addition to 30m water 1800 1600 1400 1200 1000 800 600 400 200 6000 5000 4000 3000 2000 1000 2800 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200 SAR11 1a SAR11 1b Prochlorococcus and Synecococcus SAR116 Roseobacter and  -proteobacteria Time 1 Light Bottles 300m water addition to 30m water Artificial Nutrient addition to 30m water Fragment length 

2. 3000 2000 1000 4000 3000 2000 1000 3000 2000 1000 1600 1000 600 200 700m water addition to 30m water 300m water addition to 30m water Artificial Nutrient addition to 30m water Control Fragment length  Time 1 Dark Bottles SAR11 1a SAR11 1b Prochlorococcus and Synecococcus SAR116 Roseobacter and  -proteobacteria

3. 700 dk 700 lt 3000 2000 1000 1800 1600 1400 1200 1000 800 600 400 200

4. 300 dk 300 lt 6000 5000 4000 3000 2000 1000 1600 1400 1200 1000 800 600 400 200

5. Art Nuts lt Art Nuts dk 4000 3000 2000 1000 2800 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200