SU
MI
HU
ER
ON
0
25
50
75
100
SU
MI
HU
ER
ON
0
25
50
75
100
Diatoms
Chlorophytes
Chrysophytes
Cryptophytes
Cyanophytes
Dinoflagellates
Other
Phytoplankton Community
Composition, 1999
Spring
Summer