DIVERSITY OF N2 FIXERS
AT STA. ALOHA
- variable turnover /
  high export
- low turnover /
  low export
-high turnover /
  low export
- consumed by
  zooplankton
- not readily consumed
- consumed by
  protozoans
- sinkers / migrators
- floaters / migrators
- dispersed
- bloom forming
- bloom forming
- “background”
  population
- large (>20 µm)
- large (>20 µm)
- small (<2 µm)
Diatoms/Richelia
Trichodesmium
Picoplankton