Abstract
SUMMARY: The goal of this study was to analyze the diet of Moenkhausia intermedia (Eigenmann, 1908) from Diogo Lake, Rio Mogi-Guacu basin, municipality of Luis Antonio, State of Sao Paulo, southeastern Brazil. Sixteen stomachs were examined using the method of frequency of occurrence (%FO). According to our analysis 28.79% of the food items were autochthonous, 48.48% allochthonous and 22.73% from non identified origins. Our results indicate that M. intermedia belongs to the omnivorous food guild, with a tendency to insectivory. The allochthonous items were the most frequent, with seeds showing a 100% frequency of occurrence and terrestrial insects 68.75%. Hence, an intact riparian vegetation is considered of great importance as a source of food for most aquatic invertebrates and fish.
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