Wildlife Conservation Efforts

Irrawaddy Dolphins

Note4Students

From UPSC perspective, the following things are important :

Prelims level : Irrawaddy Dolphins

Mains level : Not Much

146 Irrawaddy dolphins were recently sighted in Chilika Lake of Odisha. The lake has highest single lagoon population of the aquatic mammal in the world.

Irrawaddy Dolphins

  • IUCN Status: Endangered
  • Scientific Name: Orcaella brevirostris
  • Habitats: Lakes, Rivers, Estuaries, and Coasts

  • The Irrawaddy dolphin is a euryhaline species of oceanic dolphin found in discontinuous subpopulations near sea coasts and in estuaries and rivers in parts of the Bay of Bengal and Southeast Asia.
  • They are also found in coastal areas in South and Southeast Asia, and in three rivers: the Ayeyarwady (Myanmar), the Mahakam (Indonesian Borneo) and the Mekong.
  • The total population of these aquatic mammals in the world is estimated to be less than 7,500.
  • Of these, more than 6,000 Irrawaddy dolphins have been reported from Bangladesh, while the dolphin distribution in Chilika is considered to be the highest single lagoon population.
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