URBAN AQUACULTURE DEVELOPMENT AND IMPLEMENTATION STRATEGY IN BANDUNG CITY CASE STUDY : AFRICAN CATFISH (Clarias gariepinus) GROW-OUT

• Main Author: Suroso, Akhmad
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/34980
• Institution: Institut Teknologi Bandung

Urban aquaculture is the farming of aquatic organisms in urban area, role and benefit to urban system largely unknown, including income, employment, food security, waste reduction, flood control and groundwater recharge. This study was aimed to develop urban aquaculture of food-fish, as a case study is the African catfish (Clarias gariepinus) grow-out activity in Bandung City. The study was conducted in three stages comprise of (1) Identification of food-fish urban aquaculture characteristics and potency in Bandung City, (2) Grow-out of African catfish in recirculation system, and (3) Formulation of food-fish urban aquaculture development strategy in Bandung City. The first phase was conducted by field observations and interviews. Interviews were conducted with 30 respondents from 10 districts in Bandung City, the selection of respondents was conducted by snow ball method. The second stage is done by grow of African catfish fish for 28 days in recirculation system, which used 50 days old catfish with an average initial weight of 13.78 g. Measurements taken include weight, temperature, DO, pH, ammonium and nitrite. Phase three is done using SWOT analysis based on research data and Bandung City situation incluidng demography and food security; spatial planning and land resources; and water resource. The results of first phase is known that food-fish urban aquaculture in Bandung City dominated by commercial purpose for food production (93,3%) with main commodity is tilapia (53,3%) and african catfish (50,0%). Culture system consist of african catfish-monoculture (43,3%), tilapia-monoculture (20,0%), policulture (26,7%) and integration (10,0%). Intensif culture carried on in seeding stage, semi-intensif in all culture stage, and extensive in nursery stage. African catfish-monoculture has the highest productivity at 6 kg/m2/siklus with net income of Rp. 19.000/m2/cycle. Potential benefits of food-fish urban aquaculture includes: a) source of income reached Rp. 98.500/m2/year; b) food security, contributing to the availability aspect with productivity up to 30 kg/m2/year, contributing to the distribution aspects based on time and individual relationships between individuals on the market needs and harvest time, contributing to the consumption aspects of affordability fish consumption; c) Environmental management, contributing to waste reduction through alternative feed processing activities and contributing to flood control through a retention pond function; d) education through research and training services, and e) Tourism through fishing activities iv and school visits. Availability of resources and government policies are quite willing to urban aquaculture development, the main problems include pollution of river water and the high price of land. The highest growth performance for 28 days african catfish grow-out using the recirculation system reached by tank C with a specific growth rate (SGR) 3.28% %bw/day, feed conversion ratio (FCR) 1.02, survival rate (SR) 94, 44% and the weight coefficient of variation (C.V.) 39.36% with a final density of 1,417 individual/m3 or 62.7 kg/m3. Financial Analysis with an investment of Rp. 1,479,400,583 and economic life of 20 years showed that the business of african catfish grow-out using recirculation system is feasible up to interest rate of 19.55% on the fish selling price at Rp. 14,000 and the interest rate of 29.3% on the fish selling price at Rp. 15,000. The direction of development of food-fish urban aquaculture is to achieve food security and sustainable urban development. Implementation in Bandung City using strategy (a) Development of land use for urban aquaculture activities, (b) Development of production technology of food-fish using recirculation system for intensive aquaculture and integrated systems for extensive and semi-intensive aquaculture, (c) Development feed processing technology using urban waste, (d) Development of economic cooperation between the farmer, processor and trader of food-fish, (e) Development of collaborative research/development of cultivation technology between farmer, processor and trader with research institutions, economic institutions and municipalities.