Análise morfométrica de Cyphocharax gouldingi (Vari, 1992) (Characiformes: Curimatidae) da microbacia do rio Praquiquara, médio Apeú, Amazônia Oriental

Curimatidae genre Cyphocharax Fowler, 1906 are widely distributed in the river basins of South America, but this broad distribution inequivale the amount of work related to gender. Since it aimed to contribute to the knowledge of Cyphocarax gouldingi (Vari, 1992) through morphometric characterization of individuals collected in the watershed Praquiquara River, located in the middle Apeú, Eastern Amazon. For the morphometric determination of the species, we used Adobe Photoshop CS6 Extended software, measuring their meristic characters of lengths: total, fork, standard, head, snout and body depth, and eye diameter of 178 specimens captured between the months September (2014) and May (2015). It was found a positive and strong correlation negative allometry was found between the total length and other external measures, and noted the importance of the river Praquiquara for the kind of life cycle. It is concluded that the morphometric measurements of C. gouldingi (1) satisfy the total length estimation and (2) enable the study of the growth dynamics of the studied species.