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Number of bacterial cells estimated to be in the oceans (approximately three times the number of archaeal cells)

Value	3.1E+28 Unitless
Organism	bacteria
Reference	Karner MB, DeLong EF, Karl DM. Archaeal dominance in the mesopelagic zone of the Pacific Ocean. Nature. 2001 Jan 25 409(6819):507-10. p.509 left column bottom sentencePubMed ID11206545
Method	Data from monthly sampling (quantitative microscopic surveys using single-cell, fluorescent in situ hybridization with rRNA-targeted oligonucleotide probes) conducted throughout the water column (surface to 4,750 m) combined with continental shelf data
Comments	See BNID 106262
Entered by	Uri M
ID	106263