Table 1. Taxa enriched at least 5-fold in 60 day column surfaces compared to pond sediment.

Taxonomy		Abundance (%)			Fold increase relative to pond
Phylum	Name	Pond	Bottom surface	Top surface	Top surface	Bottom Surface
Bacteriodetes	f_Flammeovirgaceae	0.30	1.78	2.01	7	6
Chloroflexi	c_Anaerolineae;f_A4b	0.71	6.72	10.52	15	9
Cyanobacteria	f_Nostocaceae	0.01	1.97	2.17	246	223
Cyanobacteria	f_Pseudanabaenaceae	1.52 x 10−3	0.62	1.93	1267	408
Cyanobacteria	g_Arthronema	3.04 x 10−4	0.06	1.36	4457	209
Cyanobacteria	g_Leptolyngbya	6.08 x 10−4	0.24	1.02	1682	391
Cyanobacteria	f_Pseudanabaenaceae;Other	3.04 x 10−4	1.15	3.03	9979	3777
Gemmatimonadetes	c_Gemmatimonadetes	0.05	0.20	7.23	156	4
Planctomycetes	g_Gemmata	0.13	1.06	2.27	17	8
Proteobacteria	g_Hydrogenophaga	0.12	1.70	3.81	31	14
Proteobacteria	g_Luteimonas	0.02	0.07	3.14	199	5
Cyanobacteria	g_Anabaena	2.74 x 10−3	20.05	3.46	1266	7328
Cyanobacteria	f_Nostocaceae	0.01	6.11	2.64	394	914
Cyanobacteria	f_Nostocophycideae	3.04 x 10−4	1.47	0.92	3034	4826
Cyanobacteria	p_Cyanobacteria;Other	9.12 x 10−4	6.53	5.33	5838	7161
Planctomycetes	o_Phycisphaerales	0.05	1.76	0.92	17	32
Proteobacteria	f_Erythrobacteraceae	0.03	2.17	0.72	28	84