The Benefits of Constructed Wetlands Application in a Vannamei Shrimp (Litopenaeus vannamei) Cultivation System with a Mesohaline Condition

Syafrudin Raharjo, Suprihatin ., Nastiti S. Indrasti, Etty Riani


One of the negative impacts of vanname shrimp cultivation (Litopenaeus vannamei) activities is the decrease of rivers and coastal waters’quality for being functioned as a water source for the vanname shrimp cultivation and as a local fishing by traditional fishermen. This leads to the need to protect the water source which would require an additional cost and burdening the social cost. One of the effective methods for protecting the water resource is through the treatment of vanname shrimp cultivation wastewater by using constructed wetland-flow water surface system (CWs-FWS). The purpose of this research was to analyze the economic benefits the integrated system. The analysis was based on the direct and indirect benefits of CWs-FWS in vanname shrimp cultivation activities that were calculated in terms of Net Present Value (NPV) and Cost Benefit Ratio (CBR) of vanname shrimp cultivation activities. The research results showed that the vanname shrimp cultivation using CWs-FWS as wastewater treatment unit is economically feasible. The NPV after a period of 10 years provides a positive cumulative profit of 322,028 USD and CBR value of 1.62. The sensitivity analysis showed that the integrated system will be able to overcome the decline in shrimp price by 30% and the increased interest rates by up to 10 %.

Keywords: vanname shrimp cultivation, constructed wetland, integrated system, indirect benefit net

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