Why is the Botos river dolphin endangered?

This dolphin is also know as the Pink Dolphin, Amazon River Dolphin and "Bufeo" in Peru. There are many reason this animals is suffering this threat. The main thing is man, and the development that has been brought to the area of the Pink Dolphin's habitat. At one time the native people of the area respected and didn't kill the Pink Dolphin, but with industry and development of the area, new ideas about the environment have been practiced for years now. The Pink Dolphin lost it's reverred status and was hunted for it's skin and fat. Now, it is mainly the gill nets that are killing many dolphins. They have no natural predators, but man. The commerical fishing gear and techinques, such as trawling, gill nets and fishing lines, kill unknown numbers, making conservation efforts truly difficult.