Present Management of Common-pool Resource:Sinnakalapu Lagoon in Alayadivembu Pradeshiya Sabha, Ampara District, Sri Lanka

Abstract

In order to rectify common problems associated with common pool resource management different types of effective and efficient common pool resource management systems have been developed by experts though seldom published.Sinnakalapu lagoon is a brackish water ecosystem with low salinity and managed as a common pool resource of the five villages in Alayadivembu Pradeshiya Sabha. Flora and fauna present include35fin-fish species, four shrimp species, twelvebird species and a significant number of aquatic plants. These identified and biodiversity status of identified flora and fauna of Sinnakalapu was described under two-time periods before tsunami, (1990-2004) and after tsunami, (2005-2017).Ecological importance of Sinnakalapu is described based on biological, chemical and physical features of Sinnakalapu ecosystem. Mean annual income per year by fisheries resources in Sinnakalapu wasestimated. Based on this the economic value of Sinnakalapu was described. Mismanagement practices leading to the loss of biodiversity were identified and their impacts were analyzed. Numbers of fin-fishes, shrimps, insects, birds and aquatic plant species have reduced and some of the species have got extinct. Conservation and suitable management systems for sustainable management were identified concurring with the environmental policies and laws in Sri Lanka.