The Pathogen index in freshwater drum (Aplodinotus grunniens R.) from the usumacinta river in southeastern mexico (Aplodinotus grunniens R.) from the usumacinta river in southeastern mexico: Pathogen index in freshwater drum from the usumacinta river . AP [Internet]. 2024 Sep. 10 [cited 2026 Jun. 11];. Available from: https://revista-agroproductividad.org/index.php/agroproductividad/article/view/2831