Title: Economic viability of Biofloc technology vs. traditional systems for small-scale farmers: a case study of sustainable tilapia farming in Bogor, Indonesia

Abstract

Kristina Setiani's final project will be published in due time. Until then we share the abstract and a link to a poster.

This study evaluates the economic sustainability of biofloc technology (BFT) compared to traditional tilapia farming systems for small-scale farmers in Bogor, Indonesia. Using profitability assessment models and data from farmer questionnaires, the research shows that BFT provides better economic returns with higher Net Present Value (NPV) and shorter payback periods (2-3 years) than conventional systems. Significant economies of scale are revealed by comparing three tank sizes (2-meter, 3-meter, 4-meter), with 4-meter tanks offering the best capital efficiency and profitability. Despite these advantages, the study identifies persistent barriers to BFT adoption, particularly economic constraints, resource limitations, market availability, and knowledge gaps. According to the sensitivity analysis, the two factors that most significantly affected profitability across all systems were fish selling prices and operational costs (mainly feed). Furthermore, adopting new farming technologies to solve multifaceted issues is complex and related to many factors, such as socioeconomic, demographic, and institutional considerations. In conclusion, ensuring technology adoption and sustainability in small-scale aquaculture requires thorough consideration of integrated support mechanisms rather than technology transfer alone.