Ashtamudi Lake

Researchers aims to unravel mechanisms driving unique cooperation between wild dolphins and traditional fishers in Ashtamudi Lake.

About Asthamudi Lake
  • Ashtamudi Lake is a unique, large, palm-shaped wetland ecosystem located in the Kollam District of Kerala, India.
  • It is the second largest lake in Kerala, after Vembanad Lake, covering about 38 to 61.4 square kilometers.
  • The name "Ashtamudi" means "eight peaks" in Malayalam, referring to the lake's eight distinct arms or channels, indicative of its intricate topography.
  • The lake is fed by several rivers, notably the Kallada River, and drains into the Arabian Sea via the Neendakara estuary.
  • It is Kerala's deepest estuary with a maximum depth of about 6.4 meters.
  • The lake supports a rich biodiversity, including numerous fish species, shellfish like short-neck clams, and extensive aquatic flora.
  • Ashtamudi Lake is also a critical habitat for migratory waterfowl and a nursery for commercially important marine species.
  • It is significant both ecologically and economically. The lake sustains local livelihoods through fishing, coir production from coconut husk retting, and tourism, especially houseboat cruises.
  • In 2002, Ashtamudi Lake was designated a Ramsar site, recognizing its international importance as a wetland.
The lake faces environmental challenges such as salinity intrusion and pollution from urban and industrial discharge. Annually, about 25,000 tourists visit, and it hosts the famous President Trophy Boat Race, a major cultural event in Kerala.

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