The correct use of aquaculture aerators
1. Open at noon on sunny days in high temperature weather
Generally at noon in sunny days It is necessary to turn on the aerator, especially for aquaculture ponds with hypertrophic water quality and vigorous phytoplankton reproduction, because phytoplankton need to perform a lot of photosynthesis on sunny days and emit a large amount of oxygen, so that the surface oxygen content of the water body of the aquaculture pond is sufficient or even saturated. However, the oxygen content in the bottom layer of the water body is relatively much lower, and turning on the aerator can make the water body convect up and down, and can transport the water from the upper layer to the lower layer, so that the oxygen content in the entire culture pond is uniform and sufficient, and the water in the lower layer can be transported at the same time. To the upper layer, after the sunlight, it can eliminate bacteria in the water, volatilize harmful substances into the air, improve the ecological environment of the breeding pond, and purify the water body, thereby increasing the yield and efficiency.
2. Open in the morning during thunderstorms
In rainy weather, the water in the breeding pond flows rapidly up and down, resulting in a rapid decrease in oxygen content, so it should be opened as soon as possible at this time Aerator. Sometimes the sun is strong and the temperature is high during the day, but there will be thunderstorms in the evening, and a lot of rainwater will enter the breeding pond. Because the temperature of the rainwater is too low, the temperature of the water body on the surface of the breeding pond will drop rapidly, and the specific gravity will increase. If the temperature is high and the specific gravity is light, it will float up, causing the upper and lower water convection, temporarily increasing the oxygen content, but it will be quickly consumed, which is likely to cause the floating head phenomenon of aquatic products. Therefore, it is necessary to turn on the aerator as soon as possible and more frequently to reduce the floating head and ensure the growth environment of aquatic products.
3. Continuous rainy weather is more open
Summer is the rainy season for a long time, and it rains for a long time. This results in less sunlight, lack of phytoplankton photosynthesis, and insufficient dissolved oxygen in the water, which hinders the respiration of aquatic products in the aquaculture pond, resulting in anoxic state. Due to the continuous rain, there are many water fleas in the breeding pond, which eat up most of the phytoplankton in the water, thus reducing photosynthesis and insufficient supply of oxygen sources. At this time, more aerators must be turned on to increase the oxygen content in the water body to ensure water Growth of the product was not affected.
4. Turn it on more when the hypoxia is severe
When the summer is dry, the long-term sunlight will increase the temperature of the water body in the breeding pond, and a large number of The feeding of the feed caused by the water quality is hypertrophic, the transparency is relatively low, the organic matter in the water increases greatly, the oxygen content of the upper and lower water bodies is greatly different, and the lower water body is seriously deficient. Inject new water into the pool to avoid serious hypoxia caused by changes in water quality and destroy the ecological environment for aquatic products to survive.
5. Do not turn on when feeding feed
Turn on the aerator when feeding feed, it is easy to rotate the feed to the center of the breeding pond, causing feed and excrement Mixed and piled together, it is not easy for aquatic products to be ingested, resulting in feed waste. In the evening, the aerator should not be turned on, because the photosynthesis of phytoplankton stops at this time, and oxygen is no longer discharged into the water. If it is turned on, it will cause convection in the upper and lower water bodies, but it will cause the phenomenon of rapid oxygen consumption, resulting in water hypoxia and affecting breeding Respiration of water products in the pool, thereby inhibiting growth. Therefore, it is necessary to use the aerator at a reasonable time to promote the improvement of production and efficiency.
Precautions for the use of pond aerators
1. The use of aerators cannot be done step by step, and it should be used flexibly depending on the situation. In continuous cloudy and rainy days, the aerator cannot be turned on during the day, especially at noon. At this time, it will not only fail to increase oxygen, but also turn out the wastes such as ammonia nitrogen and nitrite at the bottom, which will speed up the consumption of oxygen and cause the fish and shrimp to float their heads without oxygen.
2. When adding new water to the pond, it is necessary to turn on the aerator to avoid stress caused by too much difference in local water temperature, ph, salinity, etc.
3. When the temperature is high in summer, the time to open the aerator should be extended. This is not only to increase the oxygen, but also to adjust the temperature difference.
4. Pay attention to the safety of electricity use. When the aerator is turned on, no one is allowed to go into the pond.
5. Sometimes it’s not enough to just rely on aerators, but also prepare an aerator just in case.
Declare: The above methods are derived from the program system index or shared by netizens. They are for your reference only and do not represent the research views of this website. sex and authority.
