Skip to main content
. 2018 Nov 12;8:16706. doi: 10.1038/s41598-018-35051-w

Table 2.

The studied lagoons in the Atacama Desert: General characteristics (note that mean ocean water salinity is 35 g/Kg); anionic (ion-exchange chromatography) and cationic (inductively coupled plasma (ICP) mass spectrometry) compositions; and species composition (%) of main OTUs (NGS-Based 16S rRNA sequencing, ND: Not Detected). X-Ray Diffraction (XRD) confirmed the presence of sodium chloride (NaCl, halite) and sodium nitrate (NaNO3) in both the large- and medium-sized lagoons (Figure S1).

Coordinates Large Medium Small
24°04′43.1″S, 69°56′35.2″W 24°04′42.5″S, 69°56′28.9″W 24°04′43.0″S, 69°56′02.0″W
Length (m) 60 30 4
Wide (m) 40 20 1
Depth (cm) 15 10 30
pH 6,4 ± 0.02 6,1 ± 0.02 3,8 ± 0.02
EC (mS/cm) 25,06 ± 0.01 28,31 ± 0.01 62,19 ± 0.01
Salinity (g/Kg) 19,8 ± 0.4 21,6 ± 0.4 38,78 ± 0.8
ORP (mV) −33,5 ± 1 −31 ± 1 −72,7 ± 1
Anions (ppm)
Fluorides 0,09 0,17 0,17
Acetates 0,22 ND 0,04
Formiates ND ND 0,02
Chlorides 172,11 1116,01 50,52
Bromides 0,13 0,91 0,41
Nitrates 108,58 654,81 254,10
Sulfates 2,24 31,17 368,89
Cations (% weight)
Na 7,91 7,77 7,71
Mg 0,04 0,04 0,55
K 0,10 0,10 2,13
Ca 0,91 0,92 20,61
Closest Blast Match
Marinimicrobium locisalis 80 43 48
Marinobacter sp. 9 23 52
Halomonas gudaonensis 8
Acinetobacter sp. 3 34