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Population of dolphins in Chilika lake doubled this year

Part of: GS Prelims and GS – III – Biodiversity; Environment

In news

The population of dolphins in Chilika, India’s largest brackish water lake, and along the Odisha coast has doubled this year compared with last year.

Key takeaways

The State Environment Department released the final data on the dolphin census conducted in January and February 2021, indicating a spectacular growth in numbers.
Three species were recorded during the census,.
544 Irrawaddy, bottle-nose and humpback dolphins were sighted this year, compared with 233 last year.
The endangered Irrawaddy dolphins are mostly found in Chilika lake.
The highest growth has been noticed in the case of humpback dolphins with a population of 281.
These humpback dolphins were not part of any riverine systems, so they cannot be identified as residential mammals. They were spotted travelling along the Odisha coast and the number is likely to fluctuate in the next census.

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