What are the cultured marine fish?

Among the common marine fish in the market, hairtail, Spanish mackerel, pomfret, yellow croaker, sardine, old croaker, etc. cannot be cultured artificially, and neither can squid and cuttlefish. There are perch, black skirt, large yellow croaker, six-line fish, crabs, jellyfish and other seafood both caught and farmed; Basically, all of them are cultured artificially, such as flounder, yellow flower, turbot and semi-slippery tongue.

Hairtail and Spanish mackerel are the main fish on the public table. According to Yu Guiyun, the annual catch of hairtail in Shandong Province is 12. 6, tons, mainly produced in Zhoushan fishing ground in Zhejiang, offshore Fujian, Shidao fishing ground in Shandong and offshore Rizhao. Hairtail in Bohai Bay used to be very famous, but now it is rare. Spanish mackerel is all caught, and it grows in the coastal waters of Shandong Province, with an annual catch of 18. 8, tons, ranking first among all kinds of marine fish.

Yu Guiyun also introduced that among the seafood caught, the annual output of squid is 15. 3, tons, 9, tons of small yellow flowers and 4 pomfrets. 6 thousand tons, squid 1. 7, tons, yellow croaker 1. 6, tons, sardines 1. 5, tons, cod . 56, tons. More than 9% of jellyfish are caught naturally, and 4% of prawns. The annual output of 4, tons is mainly farmed, and the species are China prawn, Japanese prawn and Penaeus vannamei.

annual crab catch 2. 8, tons, and the aquaculture capacity is 2. 1, tons, the river crab is mainly cultivated. The famous Laizhou ribbed crab naturally grows in the sea. In recent years, Shandong Province has implemented a large-scale proliferation and release, releasing a large number of crab seedlings into the sea and then catching them again.

according to statistics, the annual output of marine fish in the province is 1.73 million tons, of which 1.61 million tons are caught and the rest are cultured.

Cultured seafood is not necessarily inferior to wild seafood

Many consumers are biased against cultured seafood and think that cultured seafood is inferior to caught seafood. Li Lujing, a researcher at the Provincial Fisheries Technology Extension Station, said that this is actually a misunderstanding. Many cultured fish, such as perch and black skirt, are mostly cultured in offshore deep-water cages, which are close to the natural state. Shellfish seafood, such as scallop and clam, is protected in natural state and belongs to natural production.

Most of the fish and shrimp cultured in ponds are also cultured in strict accordance with the requirements, and even the water quality environment of the cultured fish and shrimp is better than the natural water environment.

Some people think that yellow crabs and female shrimps and tigers in hotels are controlled by drugs. Li Lujing said that this is pure nonsense. Shrimp and tiger are all caught, and there is no artificial breeding. As for the yellow crabs, the operators specially picked them out from a large number of crabs.

Li lujing introduced that Shandong province has always been at the forefront of the country in terms of healthy farming or ecological farming. Healthy breeding refers to a kind of breeding method that keeps the cultured organisms in the most suitable state for growth and development, reduces the occurrence of breeding diseases and improves the quality of products by adopting technical measures such as putting in disease-free seedlings, feeding complete feed and artificially controlling the environmental conditions of breeding.

one of the healthy farming methods is factory farming.

Perfect factory farming includes running water ponds, water quality control, water temperature regulation, water purification and other special facilities. At present, some advanced farms are equipped with automatic water quality monitoring equipment, and the production process is fully automatically controlled by pre-set programs of electronic computers. Therefore, factory aquaculture is a modern aquaculture integrating industrialization, mechanization, informationization and automation, and it is the highest scientific and technological content and the best aquaculture method at present.

most turbot in Shandong province adopts factory culture.

factory farming originated in the 196s, and after decades of development, it has become the forefront of aquaculture in the world. At present, factory farming is very popular in developed countries, and besides fish, there are also shrimp, crab, shellfish, algae and so on.

another way of healthy farming is deep-water farming.

Deep-water culture, also known as deep-water cage culture, was formed after the traditional shallow-water cage culture was extended to deeper waters. Deep-water cage culture is far from the coast, with good water quality, less pollution, rich natural bait and high degree of intensification, which can produce a large number of high-quality aquatic products and is very popular among fishermen. The number of deep-water cages in Shandong Province has grown to 1,87 this year, ranking first in the country.

At present, the species that have been cultured in deep water are mainly fish, including sea bass, black pomfret, flounder, turbot, six-line fish, black snapper, red snapper and grouper.