## 3 Results
### Sediment Quality
\begin{table}
\begin{tabular}{l c c c c c c c c c c c} \hline \hline
**Parameter** & **Global Mean** & \multicolumn{4}{c}{**SECTOR**} & \multicolumn{4}{c}{**SYSTEM**} & \multicolumn{2}{c}{**TYPE**} & \multicolumn{2}{c}{**SEASON**} \\ \cline{2-11}  & **PR** & **TA** & **MU** & **CO** & **REM** & **RVS** & **SF** & **MG** & **SU** & **WI** \\ \hline Electrical conductivity & 7973 \(\pm\) 317 & 8863 \(\pm\) 2747 & 7204 \(\pm\) 1470 & 7344 \(\pm\) 4373 & 8779 \(\pm\) 3564 & 7883 \(\pm\) 2255 & 8002 \(\pm\) 3952 & 7772 \(\pm\) 3626 & 8273 \(\pm\) 3423 & 8108 \(\pm\) 3050 & 7837 \(\pm\) 3373 \\ \(\mu\)S/cm & & & & & & & & & \\ \hline REDX & 3.29 \(\pm\) 18.25 & 22.80 \(\pm\) 101.37 & 32.29 \(\pm\) 107.94 & 11.04 \(\pm\) 142.76 & \(-\)52.96 \(\pm\) 11578 & 27.55 \(\pm\) 101.89 & \(-\)20.96 \(\pm\) 130.70 & \(-\)7.29 \(\pm\) 124.04 & 19.17 \(\pm\) 110.96 & 29.19 \(\pm\) 100.63 & \(-\)22.61 \(\pm\) 3131 \\ pH & 6.72 \(\pm\) 0.46 & 6.30 \(\pm\) 0.39\({}^{\circ}\) & 6.67 \(\pm\) 0.51 \({}^{\circ}\) & 71.0 \(\pm\) 0.35 \({}^{\circ}\) & 6.98 \(\pm\) 0.19\({}^{\circ}\) & 6.49 \(\pm\) 0.48 \({}^{\circ}\) & 6.92 \(\pm\) 0.52\({}^{\circ}\) & 6.67 \(\pm\) 0.52\({}^{\circ}\) & 6.45 \(\pm\) 0.47\({}^{\circ}\) & 6.49 \(\pm\) 0.61\({}^{\circ}\) & 6.91 \(\pm\) 0.37\({}^{\circ}\) \\ \hline Ammonium* & 69.1 \(\pm\) 6.03 & 4.45 \(\pm\) 2.87 & 4.85 \(\pm\) 39.36 & 52.00 \(\pm\) 392 & 13.30 \(\pm\) 78.24 & 4.66 \(\pm\) 3.37 \({}^{\circ}\) & 9.18 \(\pm\) 724 & 8.56 \(\pm\) 707 & 4.43 \(\pm\) 263 & 6.62 \(\pm\) 672 & 7.20 \(\pm\) 541 \\ \hline Total Nitrogen* & 2052 \(\pm\) 1233 & 3358 \(\pm\) 984 & 2129 \(\pm\) 9636 & 1179 \(\pm\) 755 & 1516 \(\pm\) 9029 & 2797 \(\pm\) 1111 & 1347 \(\pm\) 861 & 1567 \(\pm\) 9028 & 2779 \(\pm\) 1211 & 1586 \(\pm\) 1302 & 5293 \(\pm\) 1931 \\ \hline Phosphate* & 4.30 \(\pm\) 1.42 & 4.15 \(\pm\) 1.39 & 4.55 \(\pm\) 1.05 & 3.85 \(\pm\) 1.92 & 4.70 \(\pm\) 1.30 & 4.33 \(\pm\) 1.22 & 4.28 \(\pm\) 1.63 & 4.29 \(\pm\) 1.54 & 4.31 \(\pm\) 1.25 & 4.30 \(\pm\) 1.62 \\ \hline TOM* & 15.25 \(\pm\) 6.73 & 19.38 \(\pm\) 4.57 & 17.07 \(\pm\) 10.17 & 71.13 \(\pm\) 3.66\({}^{\circ}\) & 13.24 \(\pm\) 3.58\({}^{\circ}\) & 13.23 \(\pm\) 7.77 & 12.27 \(\pm\) 3.72\({}^{\circ}\) & 11.74 \(\pm\) 4.50\({}^{\circ}\) & 20.53 \(\pm\) 6.10 & 14.02 \(\pm\) 6.68 & 16.49 \(\pm\) 6.39 \\ \hline Copper * & 34.3 \(\pm\) 11.78 & 34.2 \(\pm\) 12.48 & 34.2 \(\pm\) 15.51 & 33.9 \(\pm\) 12.68 & 34.9 \(\pm\) 6.57 & 34.2 \(\pm\) 13.71 & 34.4 \(\pm\) 9.85 & 35.75 \(\pm\) 11.70 & 32.13 \(\pm\) 11.93 & 36.75 \(\pm\) 14.03 & 31.85 \(\pm\) 8.67 \\ \hline Mercury* & 0.05 \(\pm\) 0.01 & 0.05 \(\pm\) 0.0 & 0.00 \(\pm\) 0.02 & 0.05 \(\pm\) 0.0 & 0.05 \(\pm\) 0.0 & 0.05 \(\pm\) 0.01 & 0.08 \(\pm\) 0.0 & 0.05 \(\pm\) 0.01 & 0.08 \(\pm\) 0.01 & 0.08 \(\pm\) 0.01 & 0.08 \(\pm\) 0.01 & 0.05 \(\pm\) 0.0 \\ \hline Lead* & 3.69 \(\pm\) 136 & 3.79 \(\pm\) 127 & 3.04 \(\pm\) 11.93 & 32.44 \(\pm\) 0.90\({}^{\circ}\) & 4.49 \(\pm\) 0.80 \({}^{\circ}\) & 3.49 \(\pm\) 0.80 \({}^{\circ}\) & 4.49 \(\pm\) 0.80 \({}^{\circ}\) & 4.49 \(\pm\) 0.80 \({}^{\circ}\) & 4.49 \(\pm\) 0.80 \({}^{\circ}\) & 3.79 \(\pm\) 115 & 3.80 \(\pm\) 11.11 & 3.52 \(\pm\) 1.68 & 3.87 \(\pm\) 14.48 & 3.81 \(\pm\) 1.25 \\ \hline Zinc* & 47.3 \(\pm\) 14.03 & 43.4 \(\pm\) 17.62 & 6.50 \(\pm\) 17.66 & 49.30 \(\pm\) 10.57 & 51.4 \(\pm\) 8.57 & 44.25 \(\pm\) 17.19 & 50.35 \(\pm\) 9.43 & 50.38 \(\pm\) 12.18 & 42.68 \(\pm\) 15.69 & 5.20 \(\pm\) 12.52\({}^{\circ}\) & 3.90 \(\pm\) 10.44 ** & \multicolumn{4}{c}{**} \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Summary of Physical and chemical parameters (mean \(\pm\) SD) of sediments acquired in the confluence of drainages and navigable channels of coastal systems with mangrooves in Esmeraida’s province, Ecuador. The phosphorus content expressed as phosphate did not exhibit significant differences. A similar situation occurred with the metalloid content, with no differences in the content of Cu, Hg and Pb.