What Are the Different Types of Freshwater Aquaculture?

Freshwater aquaculture refers to the use of ponds, reservoirs, lakes, rivers and other inland waters (including brackish water) to breed and breed aquatic economic animals (fish, shrimp, crab, shellfish, etc.) and aquatic economic plants. It is inland An important part of the aquaculture industry. The main breeding objects are fish. The farmed shrimps include Macrobrachium rosenbergii and Hainan prawns. The crabs are mainly river crabs. At present, freshwater farmed fish in China mainly include economic fish such as herring, grass carp, silver carp, silver carp, carp, silver carp, silver carp, silver carp, silver carp, and non-fish carp. China's freshwater aquaculture area and production rank first in the world.

Freshwater aquaculture uses freshwater (including ponds, reservoirs, lakes, ditch, etc.) as a space, puts in feed, fertilizer or natural bait in the water body, adopts various technical measures to raise fish or other aquatic animals, and finally obtains fish or Other aquatic products, thus achieving certain economic benefits of economic activities.

Freshwater aquaculture provides humans with a large amount of high-quality animal protein. It is one of the most important sources for humans to obtain high-quality animal protein in the future. It is of great significance to improve the food structure of people. It is an integral part of the national economy. The development of freshwater aquaculture can accommodate a certain amount of labor, create wealth, and increase the income of the people and the state. Aquatic products are also important export commodities. They have strong competitiveness in the international market, and have higher exchange rates in exporting agricultural products. ^[1]

It is generally small in area and widely distributed; suitable for intensive cultivation, and has a high degree of intensiveness, which is conducive to

China's freshwater aquaculture, especially pond fish farming, ranks first in the world in terms of technology and total production. In order to supply more high-quality animal protein to the people, to increase the income of the majority of fishermen, and to ensure China's world-leading position in this regard for a long time, aquatic science and technology workers still have a lot of work to do, and will still face new problems in production. problem. Such as solving the source of feed, strengthening the research on nutritional physiology and full-value compound feed of major farmed fish to further improve the nutritional content and fish-raising efficiency of fish farming feeds; conducting in-depth research on breeding of breeding species and related theoretical research, using biological engineering And other advanced means to accelerate the cultivation of more new varieties with good economic traits; we should focus on the development of some high-quality aquaculture, such as mandarin ducks, crabs, shrimps, mandarin ducks, and eels, to meet the needs of the people's living standards and foreign trade; Develop the deep processing of various aquatic products and increase their added value to increase economic benefits. In the modernization of farming, efforts should be made to improve the level of mechanization of fish farming, reduce the intensity of manual labor and improve labor efficiency; at the same time, learn to introduce advanced new achievements, New equipment, new technology, and the application of electronic computers to fish farming to improve the modern fish farming technology; we must strengthen the research on fish physiology, ecology, and high-yield theory to provide a theoretical basis and stamina for higher yields; In addition, we must further improve the management level of freshwater aquaculture, and ask for benefits from management ^{[ 3]}

With our country

Freshwater aquaculture insurance is an insurance provided by insurance institutions to provide economic guarantees for aquaculture farmers in the process of aquaculture to economic losses caused by natural disasters and accidents. Among them, aquaculture refers to the use of arable areas in marine waters, tidal flats and inland waters to artificially place fish, shrimp, crabs, shellfish, algae and other aquatic economic animals and plants in seed, bait, and management to obtain The production activities of the corresponding products are divided into freshwater aquaculture and marine aquaculture.

1. Insurance liability is generally divided into two categories: liability for death and liability for loss. Responsibility for death refers to death of aquatic products caused by disasters such as lack of oxygen, disease, poisoning by others; loss of responsibility refers to water caused by the collapse of fish ponds and shrimp ponds due to natural disasters such as typhoons, tornadoes, tsunamis, and floods Product loss.

2. The insurance period shall be determined according to the breeding cycle of different insurance targets and different regional climatic conditions.

3. The insured amount is generally determined by the insured water surface area as the insured unit, including the two methods of insured cost and insured output value. The insured cost is the maximum insured amount based on the cost of the insured object at the time of harvest; the insured output is based on the market price or the product's sales price and output as the basis for determining the insured amount, and generally only covers 50% to 70%.

4. The determination of the insurance premium rate mainly considers factors such as the loss rate of the insured subject, the maximum loss at one time, and the length of the underwriting liability.

5. Indemnity cost compensation, according to the cost of the insurance target at different periods in the insurance period, according to the different compensation standards specified in the terms of compensation, the residual value is deducted from the compensation; the insured value compensation, according to the actual loss and the insurance percentage Reimbursement is limited to the amount of insurance and the residual value is deducted from the compensation ^[2] .