Variable F λm λc λexp P VIF Seagrass variables             Max leaf width 6.228 0.262 0.020 35.94% 0.0010 0.2108 Max leaf long 3.057 0.192 0.001 26.33% 0.0025 0.3035 Above-ground biomass 0.169 0.125 0.002 17.15% 0.0054 0.5675 Below-ground biomass 1.283 0.098 0.002 13.44% 0.0057 0.6731 Standing crop 0.628 0.014 0.003 1.92% 0.0080 1.5408 Total Explicate Variance percentage       94.78%     Environmental variables             Temperature 7.335 0.267 0.267 43.41% 0.0020 1.4833 Salinity 4.921 0.107 0.513 17.40% 0.0060 2.3788 Nitrites 3.865 0.054 0.321 8.78% 0.0087 1.4196 Nitrates 3.155 0.050 0.371 8.13% 0.0210 1.1681 Amonium 2.528 0.023 0.406 3.74% 0.0340 1.2912 SRP 1.114 0.012 0.383 1.95% 0.0400 1.4445 SRSi 1.098 0.009 0.359 1.46% 0.0430 1.3211 Total Explicate Variance percentage       84.87%

Table 3: RDA values from selected variables by Monte Carlo test with 999 permutations, with their values of F (permutated), λm (marginal variance), λc (cumulative variance), λexp (explicate variance), P-values and VIF (Valor Inflation Factor), with a Total Explicate Variance of 94.78% of 0.729 Total Variance of seagrasses and 84.87% of Total Explicate Variance of 0.615 Total Variance of environmental variables, with a probability valor p<0.01, in both cases.