in addition to attracting predators such as the amazon river dolphin, these high-water occurrences are an ideal location to draw in the local fisheries. human fishing activities directly compete with the dolphins for the same fish species, the tambaqui ("colossoma macropomum") and the pirapitinga ("piaractus brachypomus"), resulting in deliberate or unintentional catches of the amazon river dolphin. the local fishermen overfish, and when the amazon river dolphins remove the commercialized fish from the nets and lines, it damages the equipment and the capture and causes a negative reaction from the local fishermen.