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Yangtze finless porpoise

Yangtze finless porpoise

In News: Yangtze finless porpoise has returned to Dongting Lake after a ban on sand mining.        About

  • Porpoises are part of a group of marine mammals called cetaceans, which includes all whales and dolphins
  • It is the only freshwater porpoise in the world and breeds just once in 18 months.
  • Yangtze finless has a level of intelligence similar to that of a gorilla.
  • These are very small compared to whales but move with high speed.
  • These are good indicators of the health of their ecosystem, hence called keystone species.

Threats

  • Overfishing increased shipping traffic, and noise pollution have all been linked with the decline of the porpoise.
  • Sand mining is also a potential threat.

Habitat

  • Finless porpoises live in the Yangtze River in China, where they can be found in the main river channel and:
  1. Poyang and Dongting: two large lakes  
  2. Tien Ezhou and He Wang Miao: two ox-bow lakes

Conservation status

  • IUCN Red List: Critically endangered

 

Sources:

https://www.wwf.org.uk/sites/default/files/2018-01/WWF_WiW_2017_Factsheet_Yangtze%20Finless%20Porpoise%20FINAL.pdf

 

https://www.downtoearth.org.in/news/wildlife-biodiversity/critically-endangered-yangtze-finless-porpoise-return-to-lost-lake-stretches-after-sand-mining-ban-report-8719

 

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