Figures 2-5 from: Alonso MB, Carvalho DR, Alves CBM, Moreira MZ, Pompeu PS (2019) Changes in trophic characteristics of two fish species of Astyanax (Teleostei: Characidae) in response to aquatic pollution. Zoologia 36: 1-12. https://doi.org/10.3897/zoologia.36.e30445

Figures 2-5 Variation in the isotopic composition of carbon (2–3) and nitrogen (4–5) in the species A.lacustris (2, 4) and A.taeniatus (3, 5) among the studied regions. Mean (small box), standard error (bars) and standard deviation (large box). Letters (a and b) indicate significant differences according to post-hoc Tukey's test.