Occurrence of Harmful Algal Blooms in Freshwater Sources of Mindu and Nyumba ya Mungu Dams, Tanzania

Table 4

Summary statistics for different types of blue-green algae toxins at Nyumba ya Mungu and Mindu Dam.

Toxins	Mindu Dam (N = 38)	Nyumba ya Mungu Dam (N = 24)
	Mean ± SD	Mean ± SD
Microcystin-LR	1.08 ± 0.749^a	1.07 ± 0.499^a
Microcystin-RR	0.120 ± 0.021^b	0.124 ± 0.022^b
Microcystin-YR	1.37 ± 0.862^a	0.961 ± 0.408^a

Columns not sharing the same letter in superscript are statistically different (p<0.05).