Abstract:
Along the coastal belt of Sri Lanka, there are different water outlets from land to
sea. The present study found 431 such water outlets (mouths) in perennial, seasonal, and ephemeral
conditions. Depending on the location, these water outlets are subjected to changes in geological, and
geomorphological performances, short-term and long-term conditions, human behavior, activities, and
faunal and floral conditions. Therefore, to understand the true importance and value of these water
bodies they should be assessed individually on the merits of their environmental, economic, social, and
cultural values. By understanding such values of river estuaries, lagoon mouths, canal outlets, stream
outlets, and tidal outlets, it is possible to utilize them efficiently in the aspects of food production, the
development of coastal infrastructures, and income generation for society. Hence the current study has
compiled all the water outlets in the coastal belt of Sri Lanka while providing the present and potential
uses of them individually. The information in this report is very useful for different disciplines, students,
and the public. In conclusion, every type of water outlet surrounding the coastal belt of Sri Lanka has
enormous value for the nation, if the proper utilization practices and the managing practices have
applied.
