• Biswajit Mishra
• Dr ,Siba Prasad Parida.

ABSTRACT Chilika Lagoon is the natural adobe of highly endangered Irrawaddy Dolphins (Orcaella brevirostris). Chilika development authority has initiated several conservation measures for the protection and conservation of Irrawaddy Dolphins. The annual population estimation of Irrawaddy Dolphins in Chilika Lagoon was counted on 17th January 2019. The annual population estimation survey of Irrawaddy Dolphins in Chilika Lagoon was conducted following Line Transect technique. I was participated in the census operation and the survey root of our team was Central Sector 2. The study resulted 9 Irrawaddy Dolphins counted in Central Sector 2. The total numbers of Irrawaddy Dolphins in Chilika Lagoon were 113. The population of Irrawaddy Dolphin in Chilika Lagoon is decreasing continuously since 2016

Irrawaddy Dolphin, Chilika lake

"STUDY ON IRRAWADDY DOLPHIN (Orcaella brevirosstris) IN CHILIKA LAGOON, ODISHA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.520-524, April-2019, Available :http://www.jetir.org/papers/JETIR1904J70.pdf

"STUDY ON IRRAWADDY DOLPHIN (Orcaella brevirosstris) IN CHILIKA LAGOON, ODISHA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp520-524, April-2019, Available at : http://www.jetir.org/papers/JETIR1904J70.pdf