"Crab King" 644.7 grams, "Crab Queen" 473.6 grams! Today (9th), the 15th Crab Culture Festival of Shanghai Ocean University and the 2021 "Wang Baohe Cup" National River Crab Competition were held in Shanghai Wang Baohe Hotel. More than 2,000 river crabs from more than 80 units in Shanghai, Jiangsu, Anhui and other places competed for the annual "Oscar" of the national river crab industry. This year's "Crab King" and "Crab Queen" were selected and sent by Pangu Ecological Agriculture Development Co., Ltd. of Jishui County, Jiangxi Province.
The competition was jointly organized by Shanghai Ocean University and Shanghai Wang Baohe Hotel Co., Ltd. for the 11th time. At the same time as the river crab competition was held, the organizers also carried out the Yangtze River Delta agricultural innovation project roadshow - fishery science and technology achievements release, Anhui Province Dangtu County river crab industry high-quality development school and county docking meeting and other activities, to the national consumers once again presented a hairy crab feast.
There is an abundant source of commercial crabs throughout the country
High quality "double yolk eggs" shine brightly
"This year's national river crab production is expected to be about 800,000 tons, the grow-out specifications and quality of river crabs are stable and slightly rising, and the overall development of the river crab industry is stable." According to experts from Shanghai Ocean University, the source of commercial crabs is sufficient, high-quality brand river crabs have their own advantages, and consumers can taste delicious hairy crabs in the autumn breeze season, that is, buy and eat, without hoarding and reserves.
With the benign and sustainable development of China's river crab industry, while mature breeding technology and refined management, the overall size of river crabs this year is larger and better, and large-sized, high-quality "double yolk eggs" emerge in an endless stream. The large-sized, long-legged, and fragrant hairy crab not only satisfies the dual enjoyment of the visual and taste buds of the majority of consumers, but also reflects the improvement and efficiency of the fine seed on the river crab industry, and shows the scientific and technological value of the good seed.
The best time to taste crabs has arrived
Shanghai river crab ushered in a bumper harvest
This year, the production of river crab farming in Shanghai has experienced the strongest typhoon, the longest high temperature (more than 50 days of high temperature above 30 ° C in August to October) and the earliest cold wave "triple test", which has caused a certain impact on the river crab industry. However, the technical personnel and breeders of the Shanghai river crab industry actively "reduce disasters and seek disasters" and "implement techniques due to disasters", and the overall size, yield and quality of Shanghai river crabs have increased, and Shanghai river crabs still usher in a bumper harvest year.
This year, there are about 25 river crabs in Shanghai, accounting for about one-third of the country, covering all Shanghai crab farming areas such as Chongming, Songjiang, Baoshan, Pudong, Qingpu and Jinshan in Shanghai. After the joint efforts of all the technical personnel of the Shanghai Municipal Department, the Shanghai Chinese River Crab Industry Technology System and the majority of farmers for many years, the local breeding of hairy crabs in Shanghai has been located at the national front-line level, and the Shanghai crab industry is at the forefront of the country in terms of good seed coverage, technology integration and market popularity.
At the same time, due to the limited river crab farming area and huge market demand in Shanghai, the supply of hairy crabs in Shanghai is already in short supply.
Is the best time to eat crab? According to experts from Shanghai Ocean University, due to the long time of high temperature after the autumn this year, the fattening and marketing time of river crabs is about 10-15 days later than last year, and crab foot itching occurs late. But the recent drop in temperatures and the strong autumn mood has reached the best time for crab tasting, and food lovers can start.
School-county union
Create a "national model" for the high-quality development of fisheries
"The national river crab industry has gone from the 'natural stocking' stage in the 1960s to the 1980s to the stage of artificial intensive breeding and ecological breeding, and is now developing in the direction of green farming." Wang Chenghui, professor of Shanghai Ocean University and chief expert of Shanghai China River Crab Industry Technology System, introduced that the national river crab has shown a trend of hegemony, and the number of provinces and cities producing crabs has reached 28, and the output and efficiency of river crabs tend to be stable.
Wang Chenghui pointed out that although the production of river crab is in short supply, the current development of the national river crab industry is still facing problems such as mixed germplasm, low coverage of fine seeds, heavy yield and light quality, disease and food safety, the simple pursuit of "high yield, large specification, and high efficiency", and the "high growth" of large-scale parental seedlings.
How do I fix the above issues? At the scene, experts from Shanghai Ocean University hit it off with the Fisheries Bureau of Dangtu County, Anhui Province. Dangtu County is a well-known crab-producing county in the country, and the "Huajin" crab, one of the three major freshwater crabs in China, is produced here. In recent years, relying on the advantages of resources, location and technology, the county has vigorously developed aquatic ecological and healthy breeding, and actively explored a healthy ecological breeding model for river crabs. In 2007, under the guidance of experts from Shanghai Ocean University, the technical system of ecological crab farming in rivers and ditches with "planting grass, throwing snails, diluting, polyculture, bait foot and water control" as the core was summarized, which was named "Dangtu Mode" by the relevant state departments and promoted nationwide.
The reporter learned that the two sides of the university and county will jointly explore the integrated development of the first, second and third industries in Dangtu County and a new model of cooperation between universities, give full play to the advantages of scientific research, funds, talents and technology of both sides, focus on close cooperation in talent training, scientific research, achievement transformation and social services, and promote the development of local economy and scientific research and teaching work in colleges and universities, so as to make the transformation and upgrading of fisheries in Dangtu County and high-quality sustainable development into a "national model".
During the competition, a rich and diverse crab culture exhibition was also held to disseminate the industrial culture, food culture, history and culture of China's river crab, boost the scientific and technological and cultural upgrading of the river crab industry, and promote the integrated development of the river crab industry.
Author: Wu Jinjiao
Editor: Chu Shuting
Photo: Courtesy of Shanghai Ocean University