Table T19. Total bacterial count and biomass activities.

Table T19. Total bacterial count and biomass activities.

Hole, core

Depth
(mbsf)

Direct count
(cells/cm³)*

ATP
(pg/cm³)^†

Active bacterial cells based on ATP content^‡

(cells/cm³)

193-1188A-

5R 33.77 1.5 x 10⁷ 65.5 1.3 x 10⁶

7R 48.75 5.8 x 10⁵ 26.0 5.2 x 10⁵

8R 59.58 ND ND <1 x 10⁴

9R 68.97 ND ND <1 x 10⁴

11R 87.89 ND ND <1 x 10⁴

12R 97.88 ND ND <1 x 10⁴

18R 155.19 ND ND <1 x 10⁴

21R 184.15 ND ND <1 x 10⁴

193-1188F-

1Z 222.23 ND NM

3Z 224.75 ND NM

8Z 236.36 ND NM

13Z 242.14 ND NM

16Z 255.78 ND NM

22Z 282.95 ND NM

26Z 301.52 ND NM

Hole, core	Depth (mbsf)	Direct count (cells/cm³)*	ATP (pg/cm³)^†	Active bacterial cells based on ATP content^‡ (cells/cm³)
193-1188A-
5R	33.77	1.5 x 10⁷	65.5	1.3 x 10⁶
7R	48.75	5.8 x 10⁵	26.0	5.2 x 10⁵
8R	59.58	ND	ND	<1 x 10⁴
9R	68.97	ND	ND	<1 x 10⁴
11R	87.89	ND	ND	<1 x 10⁴
12R	97.88	ND	ND	<1 x 10⁴
18R	155.19	ND	ND	<1 x 10⁴
21R	184.15	ND	ND	<1 x 10⁴
193-1188F-
1Z	222.23	ND	NM
3Z	224.75	ND	NM
8Z	236.36	ND	NM
13Z	242.14	ND	NM
16Z	255.78	ND	NM
22Z	282.95	ND	NM
26Z	301.52	ND	NM

Notes: * = detection limit of 1 x 10⁵ cells/cm³. ATP = adenosine triphosphate. † = detection limit of 0.5 pg/cm³ (1 x 10⁴cells/cm³). ‡ = ATP content of a bacteria is ~1 x 10^-19 mol/cell. ND = not detected (below detection). NM = not measured.