24,000 -■ 



18,000 -• 



E 



o 

 O 



12,000 -- 



6,000 -- 



MAX volvet 

 X MIN valves 



WESTECH 

 BEM Simulation 



Mont hs 



Figure 11 



Sources of observed data: ANSP.unpub., 1975-79 ;Flemer et al, 1970 ; Stross and stottlemyer,l965 



SIMULATED AND OBSERVED PHYTOPL ANKTON 



ABUNDANCE 



143 



