Table 3: Size class structure of dominant diatom genera based on biovolume estimation.

Genera19–21 weeks (winter)22–31 weeks (spring and summer)
Cell dimension (µm)Biovolume (µm3)Mean abundance of respective genera (/L)Mean phytoplankton cell abundance (/L)Cell dimension (µm)Biovolume (µm3)Mean abundance of respective genera (/L)Mean phytoplankton cell abundance (/L)

Coscinodiscus
Chaetoceros
Cyclotella
Thalassiosira
Navicula
Nitzschia
204; 5
106; 4
48; 2
200; 3
21; 4; 8
16; 2.5; 4.5
226080
35281.04
3617.28
94200
527.52
90
1500
20
209
354
375
62
3300104; 4
56; 3
21; 1.5
86; 4.5
18; 6; 5
13; 2; 4
33962.24
9847.04
519.28
26126.37
423.9
52
880
120
55
210
310
110
7056