LUCKNOW, July 25 -- Uttar Pradesh will make use of sound barriers to prevent the Ganga Dolphin from entering vulnerable spots, particularly canals under irrigation department, where often dolphins get stuck, some of which even die.

The decision to try out a sound-emitting device - a pinger - was taken at a meeting of the irrigation department, Namami Gange and TSA Foundation India, on Thursday.

Dolphin pingers are deterrent devices, which emit sound, to prevent dolphins from moving in a particular direction. In India, trials have begun by using pingers in fishing nets to stop dolphins and seals from coming towards fishing nets which catch fish for food.

"Discussions were held and it was decided to use pingers and also use cameras to re...