What is the distribution process of piranha?

Piranhas are primarily distributed in the freshwater rivers and lakes of South America, particularly in the Amazon Basin, as well as in parts of the Orinoco River system and the Pantanal wetlands. They inhabit slow-moving waters and prefer areas with dense vegetation, which provides shelter and breeding grounds. Their distribution is influenced by factors such as water temperature, salinity, and food availability. Additionally, some species have been introduced to non-native areas, but their successful establishment is limited by environmental conditions.