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Table 1 Percentage of variance explained by the first two axes of the principal component analysis (PCA) and component loadings for environmental parameters

From: Infaunal macrobenthic community dynamics in a manipulated hyperhaline ecosystem: a long-term study

  PC1 PC2
% variance 71.996 27.468
Salinity (p.s.u.) 0.9618 0.2288
O2 (mg/l) -0.2402 0.9686
T (°C) 0.131 0.09686
pH -0.00611 0.007522
  1. PCA was performed on the coefficient of variation (SD/mean) of each parameter measured for each period (Halt = 1997-2002, Eutrophication = 2003-2005, Post-recovery = 2006-2010).