Planktonic Parameter | 1969-1980 | 1981-1990 | 1991-2001 | % Change, D = Decline, E = Enhancement |
Total Phytoplankton | 60.6 | 81.6 | 87.1 | 44 E |
Peridinium | 49.8 | 55.4 | 50.3 | 1 E |
Chlorophyta | 6.2 | 13.4 | 15.5 | 150 E |
Diatoms | 2.4 | 9.7 | 14.6 | 508 E |
Cyanobacteria | 2.2 | 3.1 | 6.7 | 205 E |
Total Zooplankton | 32.3 | 21.4 | 25.2 | 22 D |
Rotifera | 2.4 | 1.6 | 1.9 | 21 D |
Cladocera | 18.2 | 13 | 16 | 12 D |
Copepoda | 11.7 | 6.8 | 7.3 | 38 D |