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Table 5 Results of the marginal test for DISTLM analysis, using the BEST procedure for the Bray-Curtis resemblance matrix based on abundance (a) and biomass (b). Data were standardized and then fourth-root transformed. P(perm) < 0.05 values are in bold. BIC = Bayesian Information Criterion. SS = Sum of Squares. For the DISTLM analysis we used all the data described in Table 3. In what follows we only present the first 10 best environmental variables according to BIC criteria. Res. d.f. = 45 (Abundance and Biomass analysis)

From: Macrofauna community patterns in a Chiloe Island channel used intensely for aquaculture: the ecological status of its benthic environment

Variable SS Pseudo-F P BIC
a) Abundance
 Mean Grain Size (mm) 5944.1 2.655 0.003 368.20
 Sorting (mm) 5779.5 2.577 0.004 368.27
 Surface pH 5393.8 2.396 0.006 368.45
 Seafloor pH 4727.1 2.086 0.016 368.76
 % Gravel 4726.3 2.086 0.016 368.76
 TOM (%) 4654.6 2.053 0.016 368.80
 % Mud 4332.8 1.905 0.027 368.94
 Seafloor temperature (°C) 4312.6 1.896 0.030 368.95
 Depth (m) 4155.9 1.824 0.032 369.03
 Surface temperature (°C) 3920.7 1.717 0.053 369.13
b) Biomass
 Mean Grain Size (mm) 7008.4 2.529 0.002 378.23
 Sorting (mm) 6705.8 2.414 0.002 378.34
 TOM (%) 6413.2 2.303 0.003 378.45
 Surface pH 6002.4 2.149 0.006 378.61
 % Gravel 5667.3 2.023 0.010 378.73
 Seafloor temperature (°C) 5522.6 1.969 0.012 378.79
 % Mud 5514.1 1.966 0.013 378.79
 Seafloor pH 5498 1.960 0.013 378.80
 Depth (m) 4496.5 1.591 0.055 379.17
 Surface temperature (°C) 4410.8 1.559 0.061 379.20