Table 1 Environmental parameters of brine from Thuwal Seeps. Values for salinity, temperature, pH, dissolved oxygen and methane concentration are measured by the CTD unit and are averages ± SD of 30 continuous real-time measurements. Those for sulfate, manganese, iron, copper, silica, nitrate, nitrite and phosphorus are from HACH system (n = 3), while that for cell density is based on DAPI count (n = 3)

From: In situ environment rather than substrate type dictates microbial community structure of biofilms in a cold seep system

Measurement

Seeping water

Salinity (ppt)

116.71 ± 2.44

Temperature (°C)

28.76 ± 1.72

pH

6.82 ± 0.33

Dissolved oxygen (%)

17.17 ± 4.97

Methane (μM)

0.30 ± 0.00

Sulfate (g/L)

2.59 ± 0.01

Manganese (mg/L)

0.79 ± 0.03

Iron (mg/L)

0.00 ± 0.00

Copper (μg/L)

14.83 ± 0.32

Silica (mg/L)

10.60 ± 0.36

Nitrate (mg/L)

1.32 ± 0.08

Nitrite (μg/L)

6.26 ± 0.06

Phosphorus (mg/L)

0.24 ± 0.02

Cell density (×103 cells/mL)

95.99 ± 20.24

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