Table 1.
Geographic coordinates of the sampling sites in the studied lakes.
Table 2.
Rainfall data from five months prior to collection for region the of three areas studying.
Table 3.
Water variables in the three studied lakes.
Table 4.
Correlation coefficients (Pearson) between abiotic variables.
Fig 1.
Principal Component Analysis (PCA) with 8 abiotic variables that presented correlation and 30 sites of the lakes.
Depth collects; water temperature (T °C); hydrogenation potential (pH); Dissolved oxygen (DO%); Total Nitrogen for water (TN); Total phosphorus for water (TP) and Trophic State Index (TSI), Ferradura (FP) Burro (BP) and Caracará (CP).
Fig 2.
Trophic level, classification of the Cetesb in relation to the Trophic Status Index (TSI).
Ferradura lake (FP) oligotrophic (47≤ TSI ≤ 52) minimum trophic level, Burro lake (BP) and Caracará lake (CP), both mesotrophic (52 ≤ TSI ≤ 59), medium trophic level.
Table 5.
Codes and denomination of species with more than 5% abundance in the samples collected from the three lakes under study.
Fig 3.
Illustration of the abundant species (> 5%) for the three lakes.
AEXG: Achnanthes exiguum; AAMB: Aulacoseira ambigua; AUGR: A. granulata; AUIT: A. italica; AUPU: A. pusilla; ASIM: A. simoniae; AUMI: A.minuscula; AUVE: A. veraluciae; ECUT: E. curtiraphe; EDID: E. didyma; EDMG: E. desmogonioides; EFOR: E. formica; ELGC: Eunotia longicamelus; EMET: E. metamonodon; EMON: E. monodon; EFLX: E. flexuosa; EPAP: E. papilio; EGUI: E. guianense; EPAN: E. pantropica; ETRA: E. transfuga; FBRA: Fragilariforma brasiliensis; PSYM: Placoneis symmetrica; SLCR: Staurosirella crassa; SLDB: S. dubia; SGOU: Synedra goulardii.
Table 6.
Correlation coefficients between abiotic and biotic variables.
Table 7.
Correlation coefficients (Pearson) between biotic variables.
Fig 4.
Principal Component Analysis (PCA) with 21 biotic variables, and 30 sites of the lakes: Ferradura (FP) Burro (BP) and Caracará (CP).
Table 8.
Correlation coefficients (Pearson) between biotic and abiotic variables.
Fig 5.
Ordination for CCA with 14 species (Table 8), 07 abiotic variables and 30 sites of the three lakes.
Depth; water temperature (T °C); hydrogenation potential (pH); dissolved oxygen (DO%); total nitrogen (TN); total phosphorus (TP); trophic state index (TSI), Ferradura (FP) Burro (BP) and Caracará (CP).