ECONOMIC, SOCIAL, AND ENVIRONMENTAL FEASIBILITY ANALYSIS OF WHITE SHRIMP URBAN AQUACULTURE APPLICATION USING RECIRCULATED AQUACULTURE SYSTEM (RAS) – ZERO WATER DISCHARGE (ZWD) IN GRESIK, EAST JAVA

• Main Author: Handayani, Reskha
• Format: Theses
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/47943
• Institution: Institut Teknologi Bandung

The application of Hybrid Recirculating Aquaculture System – Zero Water Discharge (RAS – ZWD) system in white shrimp (Litopenaeus vannamei) aquaculture has increased its productivity without negative impact to the environment. This study aims to analyze the economic, environmental, and social feasibility for the implementation of hybrid system in Gresik, East Java, Indonesia. Based on the field trial, three of the five farmers showed 85 – 94% compliances, which resulted in 4.00 – 5.17 kg shrimp/m3, with feed conversion ratio of 1.04 – 1.18. The economic feasibility analysis suggested that the system is feasible starting from 250 kg shrimp production. It is simulated that to produce 1.000kg shrimp, nine ponds each of 25 m3 water volume required, with calculated positive net present value of Rp 173.956.350, initial investment of Rp 161.315.652, and payback period of 2 years at normal shrimp price of Rp 55.000/kg. The system showed positive impact to environment better than traditional systems in terms of wastewater pollutant level and water conservation capacity. Farmer compliance and cooperation during the cultivation period indicated that the system was accepted by the farmers. From all indicators above, urban aquaculture using hybrid systems proved to be feasibly implemented in Gresik, East Java.