Unlocking the Potential of Biofloc Systems in Aquaculture: A Sustainable Future for the Blue Economy
Authors: Meena DK , KS Soibam 
Published: September 2024

There is a growing need for sustainable food production worldwide, particularly in aquaculture, as conventional methods typically result in environmental deterioration and inefficient use of resources. Biofloc technology (BFT) is a promising approach that effectively tackles the environmental and economic concerns in aquaculture. The opinion paper discusses the potential and advancements of biofloc systems and their future implications for the sustainability of aquaculture. Biofloc systems have many advantages that enable them appealing for modern aquaculture. First and foremost, BFT greatly decreases water use in comparison to conventional aquaculture systems. Biofloc technology optimizes water efficiency by recycling water inside the system and minimizing the requirement for frequent water exchanges. Another significant advantage of biofloc systems is their ability to convert waste products, such as unconsumed feed and excretions, into microbial protein. Biofloc mitigates the need for fishmeal by producing microbial protein from organic nitrogen present in aquaculture effluent. Simultaneously, the combination of designed meals and biofloc forms a comprehensive food chain for aquatic animals, thereby improving their growth performance. This approach not only purifies the water, but also serves as a supplementary food supply for the fish or shrimp, hence improving growth rates and feed efficiency. Moreover, the decreased requirement for water exchange lowers the discharge of waste materials into natural water bodies, hence reducing the environmental impact of aquaculture operations. Biofloc systems significantly decrease the dependence on fishmeal, a prevalent component in aquafeeds, therefore alleviating pressure on wild fish populations. Biofloc technology has the ability to augment the immunological response of cultivated species, hence potentially decreasing the occurrence of illnesses. The microorganisms present in the biofloc have the ability to outperform and overcome harmful organisms, resulting in the establishment of a more favorable and diseasefree environment for aquaculture. In recent years, there has been significant advancement in the development and application of biofloc systems. The efficiency and reliability of biofloc systems have been enhanced by advancements in monitoring and control systems. The implementation of real-time monitoring of water quality indicators and automated feeding systems has greatly improved the management of biofloc operations. Continuing research has broadened our comprehension of microbial dynamics in biofloc systems, resulting in improved management techniques and higher system performance. Research has investigated the most optimal conditions for the development of biofloc, the nutritional benefits of biofloc, and the most effective combinations of species for co-cultivation. Case studies from different regions of the globe demonstrate the economic feasibility and ecological advantages of biofloc systems, promoting their broader acceptance.