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What are the indicators for online monitoring of water quality in smart aquaculture
From the perspective of technological development, the 21st century is the era of 'Internet +From the perspective of industry needs, traditional aquaculture relies on manual observation, information recording is not performed in real time, regulation is not timely, and feedback is slow. As the scale of aquaculture continues to expand, the information processing requirements in the aquaculture process are getting higher and higher, and the accuracy and reliability of manual data recording is greatly reduced. In addition, traditional aquaculture is dominated by retail households, extensive production management methods, insufficient individual production capacity, and product quality cannot be guaranteed. With the advent and development of smart aquaculture, traditional aquaculture entities realize the importance of transformation and upgrading, and aquaculture models, management methods and related technologies continue to incorporate innovative forces, large-scale and intelligent modern aquaculture Farming is underway. Hearing 'smart aquacultureEspecially the water quality online monitoring system makes the breeding conditions controllable, the breeding environment is no longer restricted by the weather, and a series of important influencing factors such as the water temperature, dissolved oxygen, pH value, ammonia nitrogen content of the breeding water body have become Controllable and adjustable; at the same time, the application of the online aquaculture water quality monitoring system greatly reduces the traditional aquaculture costs, including labor and bait costs, and truly realizes the entire process of aquaculture automation. To be efficient, intelligent, safe and high-yield. So. What are the water quality online monitoring indicators for smart aquaculture? Why monitor? 1. Water temperature In the living conditions of aquatic products, water temperature occupies an important position. Take fish as an example. Fish are thermophilic animals, and water temperature has an impact on the development of the gonads and spawning of fish. Monitor the water temperature of the aquaculture water area and carry out effective and timely intervention to ensure that the fish are at the most suitable water temperature so that they can grow into commercial specifications as soon as possible during the breeding stage. Second, the height of the water level Unstable water level is a big taboo for breeding, too high or too low water level will affect the aquatic products cultivated in the water area. If the water level is too high, it will increase the risk of overflowing the pond. If it is not handled in time, there may be risks of damage to the fence facilities, pool ridges, or even collapse. If the water level is too low, if it encounters cold weather, the aquatic products in the water area will have a cold disaster. 3. Ammonia nitrogen ion concentrationAmmonia nitrogen refers to the nitrogen element existing in the form of positive trivalent N-H bonds in water, that is, the sum of nitrogen in the form of molecular ammonia and ionic ammonium. Molecular ammonia is toxic to fish, and ionic ammonium is non-toxic to fish, but molecular ammonia and ionic ammonium can be transformed into each other in water, so it is necessary to monitor the concentration of ammonia nitrogen ions in the aquaculture waters. Four. pH (PH value) The optimum pH range of aquaculture waters is generally between 7.5-8.5. If the pH is too low, the aquaculture animals themselves suffer from physiological hypoxia; if the pH is too high, the water may corrode the gill tissue of fish and shrimp, causing them to lose their breathing ability and cause a large number of deaths. 5. Dissolved oxygen concentration When the dissolved oxygen is high, the product is a non-toxic and harmless substance, and the concentration of NH3 and NO2 is low. Under hypoxia, its products are ammonia nitrogen, nitrite, hydrogen sulfide, organic amines, organic acids, etc., which have a great toxic effect on breeding species. Therefore, maintaining sufficient dissolved oxygen in the aquaculture industry can inhibit the chemical reaction of toxic substances. VI. Water turbidity The turbidity of water is the degree of turbidity of water, and its impact on organisms is obvious. In addition to the above monitoring indicators, the evaluation indicators for the quality of the aquaculture waters include conductivity, hydrogen sulfide, and nitrite.