Aquatic Biosystems

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

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).

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