8 



lO 



O 4 



£ 2 



o 



1/2 PADDLE 

 NO PADDLE 



5 10 15 



LIGHT, I y day 



-I 



20 



MIXING, No. of Paddles 



Figure 25-4. Average Phytoplankton Population Levels During 

 the 34 Day Turbulence-Light Experiment. 



NOTE: Data points are the mean of duplicate tanks. 



399 



