Aquaponics: technical, environmental, and socioeconomic perspectives on integrated fish and plant farming, Greece applications

Abstract

This thesis investigates aquaponics as a sustainable food production system that integrates aquaculture and hydroponics within a closed-loop framework. Emphasising resource efficiency and ecological balance, the study outlines the core components, operational principles, and environmental advantages of aquaponic systems, such as significant water savings, minimal chemical input, and adaptability across urban and rural contexts. It further examines current technologies and system configurations, addressing biological, technical, and economic parameters essential for optimal performance. Drawing on recent empirical studies in Greece, the thesis highlights advancements in system design, the use of alternative protein sources such as insect-based feed, and the application of digital tools for real-time monitoring and improved management. By evaluating these developments, the research demonstrates the potential of aquaponics to support sustainable agricultural practices and enhance food security on both regional and global scales.