The Iargest number of eggs collected from "taricaya" P. unifilis corresponds to the Samiria river basin with approximately 89,934 units of eggs and the most number of eggs uses are reported in the Yanayacu Pucate river basin with approximately 82,050 units; in the Samiria river basin was reported the largest releases of hatching to the natural environment, the correlation between the number of eggs collected and the number of eggs used was higbJy significant only in the Y anayacu Pucate river basin. In the study period to access the formal use "taricaya" was submitted l3 proposals for management plans (8 in the Pacaya basin, 2 in the Yanayacu Pucate basin, 02 documents aquatic turtle management, O 1 in the Pacaya basin and O 1 in the Samiria river). The Paca ya basin reported the most number of alevinos of "arahuana" O. bicirrhosum extracted from the three basins are significant differen...