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Table 1 Averages of salinity, temperature, percentages of total organic matter (TOM), sand, silt–clay, and species density (ind/m2) in the sampling months (mean ± SD)

From: Does the introduced polychaete Alitta succinea establish in the Caspian Sea?

Date March June September November
Salinity (‰) 9.81 ± 0.17 10.29 ± 0.71 10.70 ± 0.3 9.91 ± 0.32
Temperature (°C) 9.68 ± 0.71 26.35 ± 3.05 27.36 ± 1.16 19.03 ± 0.7
TOM (%) 4.61 ± 1.119 5.17 ± 1.25 4.05 ± 0.59 5.03 ± 1.22
Sand (%) 87.69 ± 12.00 93.6 ± 7.54 92.33 ± 6.94 95.12 ± 4.38
Silt–Clay (%) 11.42 ± 11.43 6.16 ± 7.61 5.93 ± 6.08 3.92 ± 4.45
Alitta succinea 3.47 ± 12.38 0 11.81 ± 26.17 13.89 ± 23.65
Hediste diversicolor 1.39 ± 6.73 0 4.17 ± 13.09 0