Study of testacean assemblages (Protozoa: Rhizopoda) in touristic waterfall regions of Chapada dos Guimarães National Park, Mato Grosso State, Brazil - doi: 10.4025/actascibiolsci.v32i4.7456

Resumo

An evaluation was made of the effect of temporal variations on an assembly of Testaceae in several water bodies located in Chapada dos Guimarães National Park. A sampling point was selected at each study site, where 4 samplings were collected per season, considering the climatic conditions of the dry and rainy periods. The findings revealed 80 infrageneric taxa, 05 families and 12 genera. Pearson’s correlation between the second axis of the DCA and the first axis of the PCA was significant, even after applying Bonferroni’s correction for multiple significance tests (r = 0.683; p = 0.014). Thus, the temporal variation of the limnological data, which showed higher values of turbidity, total solids, color and temperature for the rainy period and higher concentrations of nitrogen and phosphorus during the dry season, was significantly correlated with the biotic data. The second axis of the PCA indicated that the variables remained unchanged during the seasonal periods under study.