|
Phytoplankton taxon |
1997 |
1998 |
|
Cyanobacteriaceae |
||
|
Anabaena flos-aquae |
0.34 |
0.17 |
|
Others |
0.05 |
|
|
Bacillariophyceae |
||
|
Cyclotella spp. |
54.9 |
76.8 |
|
Asterionella formosa |
1.0 |
|
|
Fragillaria crotonensis |
0.11 |
0.01 |
|
Synedra acus |
0.04 |
0.07 |
|
Others |
0.25 |
|
|
Chrysophyceae |
||
|
Bitricha sp. |
0.23 |
|
|
Dynobrion spp. |
1.8 |
1.7 |
|
Stichogloea doederleinii |
3.3 |
|
|
Mallomonas sp. |
0.36 |
|
|
Dinophyceae |
||
|
Ceratium hirudinella |
0.94 |
|
|
Gymnodinium sp./Peridinium sp. |
13.9 |
18.5 |
|
Cryptophyceae |
||
|
Rhodomonas minuta |
1.9 |
0.34 |
|
Cryptomonas sp. |
5.0 |
0.56 |
|
Katablepharis ovalis |
1.1 |
|
|
Chlorophyceae |
||
|
Botryococcus braunii |
8.4 |
0.11 |
|
Oocystis rhomboides |
4.8 |
1.3 |
|
Elakatothrix gelatinosa |
0.43 |
|
|
Sphaerocystis schroeteri |
0.47 |
|
|
Others |
0.68 |
0.42 |
Note: Numbers are percentages of total phytoplankton biovolume.