Histological biomarkers and biometric data on trahira Hoplias malabaricus (Pisces, Characiformes, Erythrinidae): a bioindicator species in the Mearim river, Brazilian Amazon
Abstract The objective of this study was to evaluate the levels of environmental contamination in a protected area in the Brazilian Amazon.For this, two areas were chosen along the Bobby Pins Mearim River: the reference area (A1) and the potentially contaminated area (A2), where water samples were collected, for physicochemical and microbiological