Figure 1. Depth-time diagram of (a) water temperature and (b) dissolved oxygen at Garças Reservoir
from October 2007 to September 2008.
Figure 2. PCA ordination of limnological variables at Garças Reservoir in 1997 and 2007/2008.
Abbreviations: Secchi: Secchi depth; Temp: Water Temperature; DO: Dissolved oxygen; EC: Electrical
conductivity; TN: Total nitrogen; TP: Total phosphorus; Chlor a: Chlorophyll a.