Diet and Trophic Structure of the Fish Community in a Small Sub-Tropical Lake in Central Mexico

Analyses of trophic structure and feeding habits the fish community can provide information on complex biotic abiotic interactions in lake ecosystems. Based stomach content δ13C δ15N stable isotope analyses, we conducted a comprehensive study diet its subtropical Lake Zacapu central Mexico. Overall, there was good agreement between results based analysis. Fish diets consisted mainly aquatic macroinvertebrates, which were abundant lake. Most species secondary consumers generalists across four sites two seasons. The food web did not differ significantly or Our suggest low position native having wide spatial niche width. Trophic overlap greater (especially from same family) than non-native species. provides new lake, rich endemic an important resource for human communities.