TOTAL MICROORGANISMS: Because the concentra- 

 tion of Gymnodinium flavum represented 86 percent of the total 

 microorganisms found, the distribution of total micro- 

 organisms (fig. 17) closely parallels that of G. flavum. The 

 correlation in time and space between G. flavum, total micro- 

 organisms, and transmission of light clearly implicated 

 G. flavum as the major cause of turbidity during this operation. 



1800 



2200 



0200 0600 



TIME (HOURS) 



1000 



1400 



Figure 17. Distribution of total microorganisms (organisms per ml), with 

 transparency data (percent transmission) in red. Operation I. 



34 



