182 



365 



Time in days 



Figure 3. Variation in standing stock of zooplankton through one year of 

 simulation. Curve #1, 2,000 rafts; curves #2 & 3, 2,600 and 

 3,200 rafts respectively. 



Time in days 



Figure 4. Variation in standing stock of macrophytes through one year of 

 simulation. Curve #1, 2,000 rafts; curves #2 & 3, 2,600 and 

 3,200 rafts respectively. 



168 



