Recirculating aquaculture systems (RAS) are important for water quality management in facilities, and can help resume consumption. However, information about the community structure of micro-ecosystem existing biofilters, especially participation known nitrifying groups (i.e., AOA, AOB, NOB, comammox Nitrospira), remains to be fully clarified. In this research, we compared structures three RAS ...

The optimal water flow in fish breeding tanks is one of the crucial elements necessary for well-being and proper growth fish, such as salmon or trout. Considering round uneven distribution water-flow velocity, ensuring a nearly an important task that may be performed using various sensors installed to monitor flow. Nevertheless, observing rapid development video analysis methods considering inc...

Recirculating aquaculture systems (RAS) discharge management limits the development of sector, because RAS do not automatically result in low nutrient emissions. Research has helped develop such as wetlands and woodchip bioreactors that have been adopted by Danish commercial model trout farms. To further concept, we modelled built a novel “zero-discharge” recirculating system with an annual cap...

Recirculating aquaculture system (RAS), as a modern highly intensive mode, demonstrates the advantages of environmental friendliness, high efficiency and sustainable development, has been widely used worldwide; they are also expected to be more applied in industrial future our natural resources decreasing. However, RAS imposes very requirements on operating conditions, including temperature, sa...

The article presents materials on optimizing the conditions for growing pike-perch during larval period of development in an artificially created environment. problems associated with complexity embryonic and post-embryonic development, transition larvae from endogenous to exogenous food, their rearing artificial feed, causes cannibalism have been described. goal was obtain analyze results clos...