I wonder if you noticed a bunch of mulberry-like pink eggs on the slope or aquatic plants when you walked along the river? They are descendants of fushou snail, an invasive alien species known as the "crop" killer! In summer, it is the breeding peak of Fushou snails, they spread in the rivers of Qingpu, Chongming and other suburbs, and even the water system in the central urban area is not uncommon, and the Pengyuepu Daning Park section is probably the place with higher density of Fushou snails in the central urban park. In order to protect ecological security, Chongming and other districts are carrying out special operations to clean up And suppress Fushouluo.
Video loading...
Breeding peaks, walking along the shore can see pink egg patches
In a river channel in Juxun Village, Chengqiao Town, Chongming, if you look closely, you will find that there are strings of pink objects the size of mulberries clinging to the reeds on the shore, "these are the eggs laid by Fushou snails." The river cleaner said, and then the eggs were uprooted and collected together. Walk along the riverbank, you will find a lot of Fushou snail eggs on the river bank and on the reeds.
Zhang Chao, director of the Chengqiao Town Water Affairs Institute, said that from May to September every year is the breeding peak of Fushou snail, and a Fushou snail lays thousands to tens of thousands of eggs each time. Because Fushou snails feed on aquatic plants such as rice and zibai, once over-propagated, it will cause damage to the ecological environment of the waters, and may also become a carrier of diseases and parasites.
Jiang Long is a non-governmental environmental protection volunteer, about 10 years ago began to pay attention to Fushou snail, and spontaneously organized citizen volunteers to remove Fushou snail, "From my observation in several suburbs, Qingpu is the place with the most Fushou snail in several suburbs, which may be related to the water system in this area. ”
Fushou snail and its pink egg can be found in many waters such as Qingpu Dalian Lake, in the waters of Chapu that flow through Baoshan, Putuo and Jiading, as well as in Minhang, Jinshan and other districts.
In Chongming Juxun Village, river cleaners remove Fushou snail egg blocks.
Peng Yuepu Fushou snails in Daning Park are dense
Fushou snails have also invaded the water system of the central urban area. Pengyuepu is a major river channel in Jing'an, and one section of it flows through Daning Park. Walking into Daning Park, on both sides of Pengyuepu, on the floating rafts planted by aquatic plants, the fushou snails attached to the stalks of water such as zailihua, calamus, and cannabis are very dense, and in the near-shore waters, you can see individual large Fushou snails, and some can be seen to have just laid eggs.
"From some of my observations, Daning Park belongs to the park in the central urban area where the density of Fushou snails is very large." Jiang Long said,
There are many Fushou snails and egg masses in the Pengyuepu Daning Park section.
Chongming and other districts carried out centralized liquidation, and citizens could also participate
In the face of the spread of Fushou snail, Chongming is carrying out a special operation to clean up and suppress Fushou snail. In Juxun Village, while salvaging Fushou snails, river cleaners use shovels, fire tongs and other tools to uproot the fushou snail eggs attached to the slope of the river bank and aquatic plants. Yin Jie, deputy secretary of the general branch of the party in Juxun Village, introduced that the Fushou snail was uniformly collected after salvage, and then crushed and then killed by high temperature, "It looks like a field snail, worried about being eaten by some citizens, and the centralized treatment is also to prevent the Fushou snail with strong vitality, climbing out to continue to find a suitable water body for survival." ”
It is reported that from the beginning of the Fushou snail annihilation war in May to June 21, Chongming has rectified 107 river channels, removed 13,476 fushou snail adults and 3,171 egg pieces.
Jiang Long suggested that in order to prevent and control the spread of invasive aquatic alien species such as Fushou snails, in addition to water affairs and other departments, citizens can also participate in removal and salvage under the premise of ensuring safety, and popularize ecological knowledge in this process. Over the years, more than a thousand enthusiastic citizens have participated in the volunteer activities of clearing fushou snails and their egg pieces initiated by Jiang Long.
It is also understood that the Ministry of Agriculture and Rural Affairs, the Ministry of Natural Resources, the Ministry of Ecology and Environment, and the General Administration of Customs jointly issued the "Management Measures for Invasive Alien Species" to be implemented on August 1, which mentions that the public can be guided to participate in the prevention and control of invasive alien species, and no unit or individual may introduce, release or discard alien species without approval.
Citizens spontaneously participated in the cleaning of Fushou snails
About Fushou Snail
Fushou snail is native to the Amazon River Basin in South America and is known as a giant field snail. It was introduced to the mainland in the 1980s and promoted as a special economic animal in many areas, including Shanghai. Fushou snail is extremely fertile, and once it enters the natural waters, it brings great difficulties to the prevention and removal work. At present, Fushou snail is widely distributed in the vast area south of the Yangtze River, has strong adaptability, and is still moving northward. In 2003, the State Environmental Protection Administration included Fushou snail in the first list of 16 alien species invading the mainland.
The appearance of Fushou snail is similar to that of field snail, but there are differences in shape, color, and size, so remember these four points: yellow, crisp, flat, and large, it is easy to distinguish.
1. The shell color of Fushou snail is yellow, and the shell color of field snail is bluish brown;
2. Fushou snail shell is thin and brittle, the screw mouth is large, the shell mouth has no black frame edge, and the field snail shell mouth has a black frame edge;
3. The tail of Fushou snail is flat and short, and the tail of the field snail is long and pointed;
4. Fushou snail is larger than field snail.
Fushou snails can be handed over to the relevant departments for centralized treatment or harmless treatment on the spot as required, and the captured Fushou snails can be crushed, boiled in boiling water or soaked in lime water and buried deeply or treated as wet garbage.
For Fushou snail egg blocks, you can use tools such as shovels, fire tongs, small nets, etc., to remove the snails and egg pieces, put them into bags or buckets, and then destroy the captured egg pieces in a centralized manner to ensure that each egg is broken, buried deep, incinerated or disposed of as wet garbage.