154
8. Impact of Dynamic Light and Nutrient Environments
1: TOTAL DI A TOMS
500 .00
1200000.00
.." ..
i
2: TOTAL DINOFLAGELLATES
.
250.00
600000 .00
0 .00
O . OO -F- - - - - --;r-- - -- - ""T- - -- - - +-- - - - - .....,
0 .00
365 .00
730.00
1095 .00
1460 .00
DAYS
FIGURE 8.11
For example , set Ikvalues to those in Figure 8.11, the maximum growth rate
for diatoms to 1.26 and leave the maximum dinoflagellate growth at 1.0. Run
the model for four years to see both inter- and intra-annual dynamics (Figure 8.12). Despite a higher growth rate, diatom abundance is now not so
high as that for dinoflagellates. The ability of dinoflagellate cells to better
compete for light allows them to peak earlier than diatom cells. The higher
1: TOT. 'I L DIA.TOMS
2: TOTAL DI NOFLAGELLA.TES
600000 .00
1000000.00
300000 .00
500000.00
0.00
0 .00 .....:...- ---.....,......- ----...,.------+------....,
000
365.00
730.00
1095.00
1460.00
DAYS
FIGURE 8.12