| dc.description.abstract | Dissolved oxygen (DO) is a crucial parameter in aquaculture, directly
influencing the growth and survival of freshwater fish. Fluctuations in DO levels,
caused by factors such as undecomposed fish waste, low light intensity, and rainfall,
can lead to mass mortality. This study aims to develop an accurate and efficient
automated DO control system to maintain water quality in freshwater aquaculture.
The DO sensor in this study employed an automatic lift and dip mechanism, integrated
with the Blynk platform for remote monitoring. The system is designed to activate the
aerator pump when DO levels fall below 5 ppm and deactivate it when DO levels
exceed 10 ppm. Results showed that the employed method can extend the lifespan and
protect the DO sensor from mineral particle contamination on the membrane,
achieving a 98.88% accuracy in real-time measurements. This accuracy was obtained
by comparing the DO sensor results with those of a DO meter 8402AZ. Measurements
were taken over 15 days, six times a day at 06:00, 09:00, 12:00, 15:00, 18:00, and
21:00 Western Indonesia Time. The measurements revealed the lowest DO levels
during the morning and evening. Therefore, this system can improve the efficiency of
aquaculture management and minimize the risk of losses due to poor water quality. | en_US |
