Table 2.

Correlation coefficient (Kendall's Tau b-test) between the percentage surface cover of L. minuta, L. minor, and A. filiculoides with Total Oxidized Nitrogen (TON), Total Phosphorus (TP) and Canopy cover.

	Correlation coefficient
	L. minta	L. minor	A. filiculoides
TON	−0.193	0.044	−0.195
TP	−0.054	0.268	0.183
Canopy	−0.219	−0.174	−0.163

Correlation refers to the data collected in April and June 2014 for TON and TP and June 2014 for canopy cover. The data of percentage coverage by aquatic macrophytes refers to the same months of 2014.