Cage farming development has been a long time. In this blog, we are going to review general cage farming development and history around the world.
Cage farming development was firstly started from fish temporary raising. It was first started in Kampuchea. Since 1851, it has a history of at least 160 years. At that time, Kampuchea transportation mainly depended on the waterway. It was due to backward technical and economic conditions. Many fishermen near the Mekong River were living by fishing. When the catch was more, the fish were transported to the golden border and other places to sell. By feeding small fish or food, people found that the fish could grow rapidly. Then the fish could be sold at higher prices. After that, the cage culture was spread from India River to the countries of Southeast Asia. It was in the 20s and 30s twentieth Century.
The fish culture was a traditional culture type in Kampuchea. The Mekong River is the birthplace of cage fish. At present, floating nets have been widely developed in the Mekong River. In history, the cage culture was spread from Kampuchea to Thailand in the 1930s. Then it spread to Indonesia in the 40s and then to southern Vietnam. The main species of cage culture in Kampuchea were silver carp, snakehead fish, beard catfish and cyprinid fish. The main species of cage culture in Indonesia were carp. Nile tilapia and shade fish were mainly cultured in the Philippines.
The Cage farming development and history in Japan was also long. In 1928, Japanese fish farmers used small cages to culture carp. After 1930, the fishermen used the cage to raise crucian carp and sold at high prices. During the Second World War, the political situation in Japan was in chaos. The aquaculture industry was in chaos as well. By 50s, the Japanese industry began to boost. The economy began to recover. The demand for the high aquatic products increased. But the water pollution was aggravated. With synthetic fibre coming out, Japanese began to use in the early 50s. In 1951, the fish culture was cultivated in many places.
After 1964, the fish culture was put into production. In Japan, the floating cage was popularized. The fish production organization was established. In the freshwater, the carp was the most popular for cage farming. In the sea, fish and snapper were the main species in the cage. The development of cage culture in Japan can be roughly divided into 3 stages. The 1930s was the temporary maintenance stage. The 50s was the test stage and 60s was the promotion stage. Since the 70s, the technology of cage fishing in Japan has developed faster.
They designed a lift cage system. With the system, it can automatically adjust the water layer with the wind and waves. It can withstand the typhoon. It has opened a new way for the cage farming in the sea. The cage culture has been fully popular in Japan. The system has been standardized and systematized. A whole set of breeding and production processes have been completed. It is like egg laying, seedling cultivation and food cultivation on the sea surface. The system not only saves land and labour resources but also reduces the cost.
With the great success and rapid development, the cage culture has been promoted fast. In the 50s, the American countries began to miniaturize the cage. The size of the cage was smaller. The small metal cage was with 1 meters long, wide and high. With a higher output. The United States mainly breeds rainbow trout, catfish and fish. In 1948, the Soviet Union began to study fish cage farming. They began to carry out the test of carp with warm water in 1963. In 1968, the experiment was further expanded. The test points of fish breeding were built respectively in 9 places. The fish farm of the USSR was built and put into production in 1969. The whole Soviet marine fishery had been built. In Poland, Onew used cage culture to breed fish.
The main species were carp, rainbow trout and catfish. In recent years, European countries have attached great importance to sea cage culture. The fastest growing one in Norway. More than 20 years ago, Norway sea water cage culture was almost blank. The output was only 10,000 tons in 1982. In 1996, it rapid developed to 292,000 tons. The main species is the Atlantic salmon. Norway has established a complete set of the fish farming network. It includes net cage engineering, automatic bait system, vaccine production and injection machine. Others are like the fish counter, automatic fishing machine and so on. Its large cage materials are light and low cost. It can resist 7~10 meters wave in height.