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Table 2 Summary of the environmental parameters values (mean and standard deviation) registered in both studied habitats in the sublittoral zone off Punta Chacaya

From: Functional diversity of marine macrobenthic communities from sublittoral soft-sediment habitats off northern Chile

  Shallow (15 m) Deep (50 m)
X ± SD ± SD
Temperature (°C) 15.4 ± 0.62 13.0 ± 0.47
Dissolved oxygen (ml O −l2 ) 2.6 ± 0.92 0.6 ± 0.27
Total organic matter (%) 1.4 ± 0.24 3.31 ± 0.46
Salinity (PSU) 34.5 ± 0.17 34.8 ± 0.07
Grain size (mm)
 4 0.4 ± 1.13% 0%
 2 2.35 ± 2.82% 0.49 ± 0.35%
 1 2.46 ± 1.77% 0.51 ± 0.24%
 0.5 3.99 ± 5.16% 1.48 ± 1.37%
 0.25 8.88 ± 1.5% 2.98 ± 1.11%
 0.125 48.95 ± 1.4% 34.91 ± 4.77%
 0.063 17.79 ± 1.54% 50.30 ± 4.07%
 <0.063 13.44 ± 1.4% 6.40 ± 3.34%
 Graphic average 2.69 ± 0.44 3.06 ± 0.17
 Sorting degree 1.01 ± 0.49 0.73 ± 0.1
 Graphic asymmetry −0.13 ± 0.13 −0.18 ± 0.08
 Biogenic structures Shell pieces, Rhodymenia coralline Thioploca sp. mats