Phosphate values showed clear seasonal differences
(Fig. 2(E)) with higher values in the WS. During the
DS, variability between stations was not statistically
significant (ANOVA, p > 0:25). Values were in the
range 0.11–2.30 (WS average 0.620.03 mg/l) and
0.04–1.51 mg/l (DS average 0.330.02 mg/l).