Hot spots of aquaculture in Liaoning this year

Introduction: March 6, 2002 Liaoning Daily News: ■ introduction and "local" varieties continue to be hot ■ total shrimp aquaculture output will increase significantly this year in Liaoning Province, where is the focus of aquaculture? The reporter interviewed the Provincial Aquatic Technology Promotion Station on March 1, and the station master and several experts agreed that several famous and excellent varieties introduced from abroad and "native" fish in Liaoning Province continued to sell well, with high benefits; the total production of shrimp culture will increase significantly, reaching a new high after the outbreak of shrimp disease; the efficiency of adult crab culture of river crab will maintain a good level The freshwater fish introduced from the United States is the most efficient freshwater fish species in Liaoning Province Last year, a mu of water can produce 500 kg of fish At present, the wholesale price in Shenyang market is 26 yuan (0.5 kg / tail) per kg, and the retail price is 34 yuan Last year, the cost per mu was 3000 yuan and the benefit per mu was more than 10000 yuan As the fish has just been introduced into Liaoning Province, the aquaculture area last year was only 1000 mu, and the market demand was in short supply, mainly relying on transportation from the south Therefore, in a few years, the benefits of aquaculture will not go down rapidly The culture cycle of the fish is 2 years, the first year is to raise fry, the second year is to cultivate fish, the adult fish culture is similar to carp, but the fry culture in Liaoning Province has not passed the test Therefore, Liaoning Province is more suitable to introduce fry from the South and cultivate fish directly Another hot spot in freshwater fish is Pelteobagrus fulvidraco, commonly known as gayu It is a native "native" fish in Liaoning Province It is a kind of wild fish Like catfish, it is a kind of animal food Although it tastes delicious, its production is not high because of its low spawning volume and poor breeding In recent years, due to people's pursuit of eating small fish and "native" fish, gayu has become delicious and its value has increased At present, the market price is 50 yuan per kilogram (0.25 kg / tail), which is in short supply The fish is easy to raise, just like catfish Such as feeding plant bait, the body color of fish is not good-looking, and the selling price is reduced Liaoning Province is suitable to introduce fry directly from the south to cultivate fish, but it should be noted that southern merchants sometimes use grouper fish as Pelteobagrus fulvidraco fry The two varieties of flounder and turbot are good in sea fish At present, the market price of Paralichthys olivaceus is 70-80 yuan per kilogram and turbot is 140-160 yuan Turbot is introduced from England, and now it is mainly concentrated in Dalian city It is cultivated in factory facilities with large investment in the early stage, which is not suitable for farmers Last year, the aquaculture area was 250000 square meters, and this year it will reach 400000 square meters After suffering from the outbreak of shrimp disease in 1993, shrimp culture in Liaoning Province has experienced a rapid recovery of shrimp industry in recent years due to the introduction of Penaeus vannamei, which has high disease resistance, high yield and successful culture The output of prawn last year was 15000 tons, which will increase significantly this year, and will reach a new high after shrimp disease At present, the shrimp market is not a problem The products are mainly sold in foreign markets The supply in the provincial market is insufficient, and a large number of Southern prawns are pouring in In the provincial market, the price of white prawn is about 40 yuan per kilogram, the price of Chinese prawn is about 80 yuan, the price of Spring Festival is high, up to 160 yuan, and the benefit of anti season prawn cultivation is high Although the total output has increased this year, it has little impact on the provincial market due to its focus on foreign markets Rice field crabs have expanded rapidly from Panjin and Yingkou to other cities Last year, Tieling City has produced its own crab, and the income of crab farmers per mu increased by 2000 yuan This year, the breeding area will double At present, 30-120 yuan per kilogram of adult crab is still profitable As the crab has entered the common people's table, there is still market space for adult crab breeding this year.