Supplementary material 1 from: Hernández-Lozano J, Córdova-Tapia F, Miranda-Gamboa R, Vázquez-Cruz MdeL, Garita-Alvarado C, Mercado-Silva N, Ornelas-García CP (2025) Isotopic variability of δ13C and δ15N signals in cave systems: insights from the blind tetra Astyanax mexicanus. Subterranean Biology 51: 31-47. https://doi.org/10.3897/subtbiol.51.140856

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