Table 5
Ranges of T, DO, DOC and BOD5 to which diatom metrics respond. The relationships were coded as follows: “↗” range of the parameter having a positive effect on the diatom metrics; “↘” range of the parameter having a negative effect on the diatom metrics. The metrics were ordered according to the absolute values of their loading on the PCA axes. Chemical and physical parameters are presented in descending order of their contribution to the GAM. PARAMETERS: temperature (T), dissolved oxygen (DO), dissolved organic carbon (DOC), five-day biological oxygen demand (BOD5).

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