PHOTOSYNTHESIS 



2 3 4 5 6 



a. Rapidly mixing 

 Water Column 



Figure 4-4. Depth Profiles of Instantaneous Photosynthesis Sim- 

 ulated by Random Walk Model of Phytoplankton 

 Circulation With Time-Dependent Photosynthetic Rate 

 at High Irradiance 



4-12 



