What is the purpose of biofiltration in aquaculture systems?

Biofiltration in aquaculture systems plays a crucial role in maintaining the health and sustainability of aquatic environments. The primary purpose of biofiltration is to convert harmful waste products, particularly ammonia and nitrite, into less toxic compounds.

In aquaculture, fish produce waste that can accumulate in the water, leading to toxic levels of substances such as ammonia, which is a byproduct of protein metabolism. Biofiltration typically involves the use of beneficial bacteria that colonize filter media in the system. These bacteria facilitate the conversion of ammonia into nitrite and then further into nitrate, which is much less harmful to fish and can even be utilized by plants in aquaponic setups.

This process not only helps in improving water quality by reducing toxic substances but also supports the overall health and growth of the fish. Healthy water quality directly contributes to improved fish welfare and productivity in aquaculture systems. Thus, the role of biofiltration in converting harmful waste products is essential for the sustainability of these systems.