Table 2.

Composition of organisms detected in the LH metagenome

Phylum	No. of hits	% of metagenome
Unclassified reads	322,498	42.9
Archaea	6,020	0.8
Euryarchaeota	4,037	0.5
Crenarchaeota	351	<0.1
Thaumarchaeota	75	<0.1
Other archaea	1,557	0.2
Bacteria	382,205	50.8
Cyanobacteria	148,325	19.7
Bacteroidetes	99,693	13.3
Proteobacteria	49,803	6.6
Firmicutes	4,803	0.6
Actinobacteria	3,469	0.5
Verrucomicrobia	1,615	0.2
Other bacteria	74,470	9.9
Eukaryota	38,233	5.1
Others	2,914	0.4
Total	751,870