Table 4. Number of common and rare species per phylum and percentage of phylum abundance at each station

Number of species
Phylum	Common	Rare	Total	%
Cyanophyta	3	3	6	42.9
Bacillariophyta	2	6	8	57.1
Total	5	9	14	100
Species frequency
Stations	Cyanophyta	Bacillariophyta
PA	20	48
AA	59	112
FA	59	112
Total	138	272

PA, protected area; AA, anthropogenic areas; FA, flooding area.