Bhubaneswar, Jan. 17 -- Bhubaneswar: The annual headcount exercise of dolphins inhabiting in the backwaters of Chilika Lake began on Sunday.

Official sources said, 18 teams comprising 109 officials from forest department, Chilika Development Authority (CDA), WWF, Motor Boat Association, representatives of several NGOs and students of Odisha University of Agriculture & Technology (OUAT) have been engaged for the enumeration of Irrawaddy dolphins at Chilika, Asia's largest brackish water lagoon.

The teams began the annual census at 6 am and the exercise continued till 12 pm. The teams carried out the enumeration using GPS sets, binoculars, sophisticated cameras and rangefinder.

"The annual survey was conducted by parallel line and transa...