Helminth fauna and histopathology associated with parasitic infections in Phrynops geoffroanus (Schweigger, 1812) (Testudines, Chelidae) in a Brazilian river subjected to anthropogenic activities

Cristina Farias da Fonseca, Nicolás Jonathan Jesús Tarmeño Rojas, Fabiano Matos Vieira, Ana Paula dos Santos Ferreira, Midiã da Silva Rodrigues, Maria Edna Gomes de Barros, Valdemiro Amaro da Silva, Geraldo Jorge Barbosa de Moura, Jaqueline Bianque de Oliveira