• Country: 
    Sri Lanka
  • Site number: 
  • Area: 
    915 ha
  • Designation date: 
  • Coordinates: 
    06°18'N 80°03'E
Materials presented on this website, particularly maps and territorial information, are as-is and as-available based on available data and do not imply the expression of any opinion whatsoever on the part of the Secretariat of the Ramsar Convention concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries.


Maduganga. 11/12/03; Southern Province; 915 ha; 06 18'N 080 03'E. A mangrove lagoon joined to the sea by a narrow canal and containing 15 islands of varying size, some of which are inhabited. It is formed of two shallow waterbodies, Maduganga and smaller Randombe Lake, connected by two narrow channels. On the islands and shores relatively undisturbed mangrove vegetation contains a rich biodiversity qualifying the wetland for 7 Criteria of International Importance. Many globally/nationally endangered, endemic and rare species - e.g. Shorea affinis, an endemic and endangered plant, Mugger (Crocodylus palustris) vulnerable (IUCN Red Book) and CITES-listed Purple-faced Leaf Monkey (Trachypithecus vetulus), endangered, Estuarine Crocodile (Crocodylus porosus), Flapshell Turtle (Lissemys punctata), Indian Python (Python molurus) find shelter here. The lagoon provides the breeding, spawning and fattening ground for many fish species and supports 1.2 % of the Little Green Heron biogeographical population. The cultural heritage is very prominent, with numerous ancient temples in the area and on the islands. Maduganga helps in flood control by storing water during monsoon rains and retains nutrient run-off from nearby cinnamon plantations. The major occupation of the local people is fishing and agriculture (cinnamon and coconut). Poaching of wild animals and waterfowl is unfortunately increasing, and extensive use of fertilisers and consequent abundant growth of invasive species, e.g. Najas marinas or Annona glabra, are factors of concern. Part of a Coastal Resources Management Project funded by the Dutch Government - ADB, with a management plan expected in 2006. Ramsar site no. 1372. Most recent RIS information: 2003.

Administrative region: 
Southern Province

  • Last publication date: 


Ramsar Information Sheet (RIS)