Water quality monitoring methods

1. Sampling method
The primary task of water quality monitoring is to accurately collect water samples. When sampling, appropriate sampling instruments should be selected and operated according to certain standards. Professional water quality monitoring personnel should pay attention to avoiding pollution and poor representativeness when sampling to ensure the accuracy and reliability of the sampling results.

2. Monitoring technology
Different monitoring techniques can be used for different water quality parameter indicators. For example, spectral analysis techniques, electrochemical analysis techniques, and analytical biology techniques can be used to monitor indicators such as water temperature, dissolved oxygen, and ammonia nitrogen in water.

3. Important parameters and indicators for water quality monitoring

① Water temperature: Water temperature is one of the important factors affecting the growth of aquatic organisms. A reasonable range of water temperature can provide a suitable living environment, promote biological metabolism, digestion and absorption, and accelerate growth rate.

② Dissolved oxygen: Dissolved oxygen is an important factor in maintaining the life activities of aquatic organisms. The content of dissolved oxygen in water directly affects the growth and survival of aquatic organisms such as fish and shrimp.

③ Ammonia nitrogen: Ammonia nitrogen is one of the common harmful substances in aquaculture water quality, and its excessive content can cause poisoning or even death of aquatic organisms. Therefore, monitoring ammonia nitrogen is an important means to promptly identify water quality issues and take corresponding measures.

④ Nitrate and nitrite: Nitrate and nitrite are indicators for evaluating the nitrogen nutritional status in water bodies. Excessive levels of nitrate and nitrite may lead to eutrophication of water bodies, causing problems such as algal blooms.

⑤ PH value: The pH value of a water body has a significant impact on the metabolic activity of aquatic organisms and the growth of aquaculture products. Excessive or insufficient pH values can have adverse effects on aquatic organisms.

Aquatic monitoring can timely detect and solve potential water quality problems, reduce the occurrence of fish and shrimp diseases, and improve the success rate and yield of aquaculture. Water quality monitoring also helps to prevent excessive pollution of water bodies and reduce the impact of aquaculture on the surrounding water environment. Through scientific and reasonable monitoring and management, the stability of the water environment and ecosystem can be protected.