ABSTRACT This study was carried out in a section of the middle course of the Teles Pires River. a clear water river that drains ancient and highly eroded geological formations. and where five hydropower plants are planned or in construction. In this study we tested the hypothesis that local fish fauna is mainly sustained by autochthonous food resources. https://parisnaturalfoodes.shop/product-category/magnesium-bis-glycinate-300-ultra-gentle/