The standards for fishery water in China clearly stipulate that in the aquaculture water body, the dissolved oxygen must be greater than 5mg/L for more than 16 hours within 24 consecutive hours, and must not be lower than 3mg/L at any time. Insufficient dissolved oxygen will cause the obstruction of the material cycle in the water body. It is difficult for ammonia nitrogen and nitrite to be converted into non - toxic substances, which greatly increases the probability of fish diseases. At the same time, the level of dissolved oxygen directly affects the feeding, growth and health of fish and shrimp. For example, when the dissolved oxygen is low, fish and shrimp will "float to the surface". Long - term exposure to a low - oxygen environment will reduce the physical condition of fish and shrimp and increase the incidence of diseases. Insufficient dissolved oxygen during the embryonic period can also lead to deformities or even death.
The Dissolved Oxygen Analyzer can measure the dissolved oxygen content in the water body in real - time and accurately, allowing farmers to keep track of the changes in dissolved oxygen at any time. Through online monitoring, farmers can ensure that the dissolved oxygen in the water body is maintained within an appropriate range, avoiding problems such as "floating to the surface", slow growth and increased incidence of diseases of fish and shrimp due to lack of oxygen. When the dissolved oxygen approaches or is lower than the critical value, the analyzer will issue an alarm in a timely manner to remind farmers to take oxygen - increasing measures, such as turning on the aerator, to ensure the living environment of aquatic organisms.
The dissolved oxygen content is closely related to water quality. The Dissolved Oxygen Analyzer can help farmers understand the oxidation and decomposition of organic matter in the water body and judge the quality of water. When the dissolved oxygen is sufficient, organic matter can be completely oxidized to produce non - toxic end products; when the dissolved oxygen is insufficient, harmful substances such as organic acids and amines will be produced. By monitoring the dissolved oxygen, farmers can adjust aquaculture management measures in a timely manner, such as reasonably controlling the aquaculture density and optimizing the feed feeding amount, to improve water quality and reduce the generation of harmful substances.
In aquaculture, the sources and consumption of dissolved oxygen are affected by various factors, such as air dissolution, photosynthesis, water replenishment, respiration of cultured organisms, oxygen consumption by microorganisms, and oxygen consumption by the substrate. The Dissolved Oxygen Analyzer can adapt to different aquaculture scenarios and environmental conditions. Whether it is pond culture, industrialized culture or other culture modes, it can accurately measure the dissolved oxygen content and provide reliable data support for farmers.
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