Table 1.

Results of the PCA analyses based on full lake dataset and on sample‐level dataset including eigenvalues, explained variations of the first four axes

	Lake based				Sample based
	Total variation is 130.00000				Total variation is 1150.000
Summary table
Statistic	Axis 1	Axis 2	Axis 3	Axis 4	Axis 1	Axis 2	Axis 3	Axis 4
Eigenvalues	0.5074	0.2333	0.1306	0.088	0.4918	0.2405	0.1179	0.0867
Explained variation (cumulative)	50.74	74.07	87.12	95.92	49.18	73.23	85.03	93.69