Can a freshwater dolphin survive in a water sewer?

River dolphins are a very widespread group of fully aquatic mammals that reside exclusively in freshwater or brackish water. While river water may not always be the cleanest and clearest, it still moves causing it to replace oxygen and nutrients. read more

A few species of dolphin such as the amazon river dolphin, Ganges river dolphin and Indus river dolphin are known to reside primarily/exclusively in freshwater rivers, but as stated previously the majority of dolphins live in saltwater environments. read more

There are a number of dolphin species that live in fresh water. They all belong to the river dolphin families. These are: the Platanistidae (Ganges and Indus river dolphins), the Iniidae (the boto or Amazon river dolphin) and the Pontoporiidae (the baiji and the franciscana). read more