In this investigation. comparative ecological data of three species of freshwater fish is presented. Two of them belong to the Metica river system. the Bocachico Real (Prochilodus mariae Eigenmann 1922) and the Bocachico Cardumero (Suprasinelepichthys laticeps Valenciennes 1849). https://fitnessgravesyardes.shop/product-category/cushion-tracks/