Fig. 1
From: The piranha gut microbiome provides a selective lens into river water biodiversity
Photos of fish and river sampling on the Rio São Benedito, located in the Amazon Basin in Pará, Brazil. (a–c) Example specimens of the endemic Redeye Piranha (Serrasalmus rhombeus) sampled in the study. (d) Demonstration of river water sampling using a Sterivex filter unit.
