Study On The Respiration of Carp and Oxygenless Control for Fish Pools

The model FRF-1 instrumen, thas automatically detected the FRF (Fish respirationary frequencies) of carp.The special responses of FRF in the field are recorded for the ist time.
In the fish pool rich with algae, the DO is between 0.6 and 12mg/L from day to night.In raining days, DO would be as low as lmg/L for quite a long time.The study shows that the respirating RF of fish increases while the DO is low and reduces while DO is high.
Another advantage of the model FRF-1 is that it can start the aerator when the DO is low