Table 2. Frequency of occurrence and contribution to total cyanobacteria biovolume of cyanobacterial taxa.

Taxon	No. lake–summers	% of cyanobacteria biovolume	Maximum biovolume mm3 l−1
FFO	157	50.75	29.6
A.gracile	135	13.15	7.46
Anabaena	127	3.73	5.36
P.agardhii	127	22.65	36.2
Microcystis	97	3.61	8.61
A.issatschenkoi	91	1.61	1.54
C.raciborskii	91	3.3	5.40
A.flos-aquae	66	1.04	2.34
Anabaenopsis	33	0.15	0.389