Biocenosis of cold-water and warm-water biofilter in recirculating aquaculture system

Abstract

This article presents data on the species composition of periphyton organisms in biofilms of cold-water biological filtration systems intended for the cultivation of rainbow trout (Oncorhynchus mykiss) and warm-water species for the cultivation of (Clarias gariepinus) in a recirculating aquaculture system. Data on the occurrence of certain groups of periphyton organisms are presented, and their role in the process of water purification is indicated. A significant difference in the species composition of biofilter biofilm organisms is shown, depending on: temperature regime and planting density of aquaculture objects. The species composition of aquasysets is similar to that in urban wastewater treatment systems.