TURBIDITY AND THE DISTRIBUTION OF PARTICLES 



Gymnodinium [lavum: G. flavum (fig, 23) was present gener- 

 ally throughout the water mass. The highest cell counts 

 fell predominantly within the turbid layer delineated by 

 the 50-percent transmission contours (fig. 21). There 

 were two exceptions -- a concentration between 2200 20 July 

 and 0300 21 July from 50 to 32 feet, and another between 

 06 00 and 1000 21 July at 48 feet. In both cases the maxima 

 occurred in water 50 to 60 percent transparent and indi- 

 cated that G. flavum alone was not responsible for the turbid 

 pattern. 



1000 1400 1800 2200 0200 



TIME (HOURS) 



0600 



1000 



Figure 23. Distribution of Gymnodinium flavum (organisms per ml), with transparency data (percent transmission) 

 in red, Operation II. 



42 



