Cool, alkaline serpentinite formation fluid regime with scarce microbial habitability and possible abiotic synthesis beneath the South Chamorro Seamount

Progress in Earth and Planetary Science

Table 2 Microbial cell density in the CORK fluid and ambient seawater samples

Cruise ID	HPD dive#	Time after valve opening	Sample type	Cell count (cells ml⁻¹)
NT09-01	941	0 day	Bag	2000
NT09-01	943	2 days	Bag	440
	943	(ambient seawater)	Bag	22,000
	945	4 days	Bag	660
NT09-07	1007	5 months	Bag	101
NT09-07	1009	5 months	Bag	139
NT12-04	1349	45 months	WHATS	7600
NT12-04	1350	45 months	Deep sampler	4100