Published on: November 19, 2021

AGHANASHINI ESTUARY

AGHANASHINI ESTUARY

NEWS

ENVIS Centre & Energy and Wetlands Research Group of the Indian Institute of Science (IISc) prepared a proposal for the declaration of Aghanashini estuary as a Ramsar wetland site of international importance.

ABOUT AGHANASHINI

  • In central Uttara Kannada district of Karnataka
  • Originates in the Western Ghats
  • Flows westward towards Arabian Sea
  • Major part of its course flows through the forested gorges and valleys
  • Landforms not only accommodate diverse ecosystem functions and human activities
  • Mediate flood and erosion risks that are expected to increase with climate change
  • No dams and no notable industrial establishments or major townships along its banks
  • May be considered one of the most pristine along the west coast
  • Has high productivity – because of organic materials carried from the forests in the catchment area of the Western Ghats and deposits the same in the estuary
  • Debris becomes an important base for food chains operating
  • Rich mangrove vegetation of the estuary
    • plays a significant role in nutrient supply for the diverse faunal community
    • provide shelter for birds and act as nurseries for many species of fishes and prawns
  • Rich bird community (over 120 species)associated contributes to the nutrient cycling through their potash and nitrogen rich castings
  • Constant churning and circulation of waters due to flow of fresh water from one side and the tidal influx from the Arabian Sea oxygenates the water and circulates the nutrients
  • Protection would help migratory species during their annual cycle of movement
  • Contains representative, rare, or unique example of natural or near natural wetland type supports diverse biota including human livelihood
  • Dependence on the ecosystem for natural resources apart from aiding as filters, shoreline protection, diverse habitats (mudflats, sand flats, etc) and diverse micro and macro biota

NOTE : India has 46 ramsar site locations but none of them is in Karnataka.