Recently, some micro-friends broke the news that there were a lot of snails fished on the bank of Yongkang Nanxi, originally thought it was field snails, and after returning home, they found that they were actually fushou snails.
The reporter came to the bank of the Yongkang River and saw many pieces of pink "insect eggs", one about 3-5 centimeters long. Not only on the aquatic plants on the shore, but also on the stones in the river, there are also pink eggs. Up close, these things are made up of densely packed small balls, shiny and textured under the sunlight. However, people with dense phobia will have some hairs in their hearts after watching it.
Fushou snail looks very similar to the field snail, its eggs are more characteristic, red one by one, one clump after another, sticking to the lotus leaf rod like chewing gum. Lotus leaves, lotus roots it will eat, lotus leaves will be chewed out of many holes. It is a host in the middle of many people and animals, and there will be many parasites, which are harmful to human health! Not only in Yongkang, but also in Hangzhou and other places in recent times, fushouluo figures have also appeared.
Faced with Fushou snail powder eggs, Yongkang did so
According to the data records, the most suitable growth water temperature of Fushou snail is 25 ~ 32 ° C, May to August is the peak of breeding, Fushou snail reproductive ability is very strong, can lay eggs 20-40 times a year, the annual spawn volume of 30,000-50,000, can spread rapidly, and it is heterogeneous, once the outbreak will destroy the surrounding ecosystem.
In 2003, The China Environmental Protection Administration (now the Ministry of Environmental Protection) listed Fushou snail as one of the first 16 "most harmful alien species" to invade China. In order to effectively control the breeding of Fushou snails and eliminate them in the bud, Yongkang City has also fully carried out the Fushou snail clearance operation.
The first is multi-departmental linkage to explore the "row" of snails. The Yongkang Municipal Water Affairs Bureau and the Agriculture and Rural Affairs Bureau took the lead in organizing and holding a special action promotion meeting for cleaning up Fushou snails in urban areas, and the meeting decided that the municipal water affairs bureau and related towns and streets should carefully investigate the waters in charge in accordance with the principle of combining "territorial management" and "hierarchical responsibility", fully grasp the dynamics of the snail situation, and curb the growth, reproduction and spread of Fushou snails.
The second is two aspects of control, and the team members "suppress" the snail. On the one hand, the Yongkang Municipal Water Affairs Bureau and the Dongcheng, Jiangnan Subdistrict and Xicheng Subdistrict Offices carried out a full line of salvage and removal along the urban river, and under the guidance of experts from the Agricultural and Rural Bureau, the snails were crushed or crushed by the eggs, and then soaked in quicklime, and after the disposal was completed, they were centrally transported to the municipal landfill for landfill. On the one hand, under the premise of not polluting the water source, low-dose drugs are used for prevention and control, and the area after the removal of the Fushou snail is cleaned and killed to avoid the continued reproduction of residual snail eggs to achieve the best control effect.
The third is the supervision of the whole water area, and the final case is "controlled" by the snail. Prevention and control of Fushou snail is a long-term process, in order to completely prevent and control, Yongkang formulated the "Fushou snail cleaning long-term plan", from artificial hunting, biological prevention and control, strengthen training and publicity, strengthen supervision and other aspects of control. The next step will be to carry out the "snail" operation in the city's rivers, ponds, and farmland to ensure the effectiveness of the crackdown.
Intermediate host of parasitic diseases!
Why people "talk about snail discoloration", here we have to say this matter - Fushou snail is an intermediate host of a zoonotic parasitic disease.
According to statistics, there are 3,000 fushou snails containing fewer parasites and more than 6,000.
(Image source: People's Daily Weibo)
Eating raw or not fully heated Fushou snail, may cause Guangzhou tube strong nematode and other parasites infected in the human body, very easy to cause foodborne Guangzhou tube strongyloidiasis, infected with this disease, nematode larvae will invade the human brain, damage the central nervous system, cause eosinophilia meningitis, can cause headache, fever, neck stiffness and other symptoms, severe can cause dementia, and even death!
How to distinguish between Fushou snail and field snail
→ from the appearance point of view:
There is a big difference between Fushou snail and field snail. First of all, from the perspective of size, the adult Fushou snail is much larger than the field snail, "and then from the color point of view, the color of the Fushou snail is yellow, and the field snail is bluish brown." ”
→ from the structural point of view:
Even if it is a field snail and a Fushou snail of the same size, there will be a big difference in structure. The tail of the snail is vertebral in shape, and the cap is round, while the tail of the Fushou snail is very short, the lid is flattened, and the whole is disc-shaped.
Snail meat without shell
How do you tell the difference?
This is actually not difficult,
And distinguish the shell color a routine:
The two snail theme colors are also different!
The overall snail meat is white, cyan and bluish gray
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Fushou snails, on the other hand, are yellowish brown
Cooked can also be distinguished!
The key is to look at the size! Fushou snail is large because Fushou snail has two pairs of antennae, and field snail has only one pair. So when you see that there are more granulations on the snail and are messy, it is that the Fushou snail is not bad!
There is also a distinction on Baidu Encyclopedia
Fushou snail with common field snail table!
Whether it is Fushou snail or field snail, it may be infected with Guangzhou tube roundworm and other parasites, therefore, whether it is eating Fushou snail or field snail, it must be cooked, and must not be eaten raw or half-raw, especially cold snail meat or barbecue snail, do not eat.