Pollution of the aquaculture environment and its control measures**.
Aquaculture is an important part of China's agriculture and provides a large amount of high-quality protein for human beings. However, with the continuous expansion of the scale of aquaculture, the pollution of the aquaculture environment is becoming more and more serious, which has brought huge economic losses to the aquaculture industry and a potential threat to human health. Therefore, the pollution of the aquaculture environment and its control measures are of great significance.
1. Pollution of the aquaculture environment**.
The pollution of the aquaculture environment is mainly in two aspects: exogenous pollution and endogenous pollution. Exogenous pollution mainly comes from pollution sources other than aquaculture waters, such as industrial wastewater, domestic sewage, agricultural fertilizers and drugs. These pollutants enter the aquaculture waters through surface runoff, underground infiltration, etc., causing water quality deterioration and affecting the growth and reproduction of aquatic organisms. Endogenous pollution is mainly caused by the unreasonable operation and management in the breeding process, such as excessive feeding, fertilization, medication, etc., resulting in high content of organic matter, nitrogen, phosphorus and other nutrients in the water body, causing eutrophication of the water body, thereby causing the spread of various diseases and parasites.
Second, the harm of aquaculture environmental pollution.
Aquaculture environmental pollution has brought serious harm to aquatic life, human health and the ecological environment. First of all, the growth and reproduction of aquatic organisms are severely affected, and the spread of diseases and parasites leads to a large number of deaths and deterioration of water quality, which affects the quality and yield of aquatic products. Secondly, by consuming contaminated aquatic products, humans may ingest harmful substances and pose a potential threat to health. In addition, the pollution of the aquaculture environment will also have an impact on the surrounding ecological environment, such as destroying the ecological balance of the water area and affecting aquatic biodiversity.
3. Control measures for environmental pollution in aquaculture.
In order to reduce the pollution of the aquaculture environment, a series of control measures need to be taken. First of all, it is necessary to strengthen environmental supervision, strictly control the discharge of exogenous pollution sources, and at the same time strengthen the management and control of endogenous pollution. Secondly, it is necessary to promote the ecological breeding model, and reduce the pollution in the breeding process through reasonable breeding density, feeding, fertilization and medication. In addition, measures such as biological water purification and ecological restoration can also be used to treat and restore already polluted waters.
4. Conclusions and prospects.
The pollution of aquaculture environment has become an important factor restricting the sustainable development of China's aquaculture industry. By strengthening environmental supervision, promoting ecological breeding mode, adopting biological water purification and ecological restoration and other measures, the pollution of aquaculture environment can be effectively reduced, and the quality of aquatic products and the safety of the ecological environment can be guaranteed. In the future, with the continuous progress and application of science and technology, it is believed that China's aquaculture industry will achieve more green, environmentally friendly and sustainable development.