Fig. 2. Spatial variation (median, quartiles, maximum and minimum values) for caloric values in kcal * g-1 dry weight of males and females of Acestrorhynchus lacustris, Apareiodon vittatus, Astyanax bifasciatus, Astyanax minor, Corydoras cf. paleatus, Geophagus brasiliensis, Hoplias aff. malabaricus, Loricariichthys platymetopon, and Satanoperca pappaterra of different trophic groups (square - detritivorous, dot - invertivorous, triangle - piscivorous, cross - omnivorous) in three reservoirs in Paraná State (KW-H = values of H of Kruskal-Wallis test - *= significant difference).