The Paper's reporter Zhong Yuhao
Not limited to alligator eels, a census of invasive aquatic animals is being carried out in many places.
According to the news released by the Jiangsu Freshwater fisheries research institute a few days ago, from August 11 to 13, researcher Li Daming, deputy director of the Resources and Environment Research Office of the institute, led Assistant Researcher Liu Yanshan and other department members to Carry out a census of invasive aquatic animals from outside the lake. The census was carried out in strict accordance with the "Technical Regulations for the Survey of Agricultural Invasive Alien Species (Trial)", and set up 8 inspection points, such as the mouth of the Taihu Canal Lake, the mouth of the Wunan River, the mouth of the Mengjin River, the mouth of the Huangli River, the mouth of the Beiganhe Lake, the mouth of the Zhanghe Lake, the low-carbon wetland park of The Penghu Lake, and the Peng harrier Wetland Park, focusing on the investigation of 10 exotic aquatic animals such as Qi's tilapia, leopard-patterned winged catfish, managua lily fish, crocodile eel, mosquito-eating fish, striped carp, Fushou snail, large crocodile turtle, Brazilian red-eared turtle, and bullfrog.
According to the news, under the coordination and help of the Office of the Fisheries Management Committee of Jiangsu Province, the team members braved the high temperature and heat to visit the fishery management department, fishermen, anglers and aquatic product markets, found foreign species such as Fushou snail, Brazilian red-eared turtle, mosquito-eating fish, and recorded, photographed and measured. According to the Freshwater Fisheries Research Institute of Jiangsu Province, this census work is the beginning of the census of invasive aquatic animals in Jiangsu Province, which has laid the foundation for the comprehensive census of invasive aquatic animals in our province, and is of exemplary significance for promoting the census of invasive aquatic animals.
It is worth noting that when the Jiangsu Freshwater Fisheries Research Institute released the above news, it also mentioned a number of notices, including the Notice of the Ministry of Agriculture and Rural Affairs and other seven ministries and commissions on printing and distributing the Overall Plan for the Census of Invasive Alien Species (Agricultural Science and Education Development (2021) No. 2), the Notice of the Department of Agriculture and Rural Affairs of Jiangsu Province and other seven departments on Printing and Distributing the Work Plan for the Census of Invasive Alien Species in Jiangsu Province (Su Nongzhi (2022) No. 2), and the Notice of the Department of Agriculture and Rural Affairs of Jiangsu Province on Carrying out the Census of Agricultural Invasive Alien Species in the Province. (Su Nong Seed (2022) No. 5) and so on.
Recently, Shanghai Chongming also launched the implementation of the census of invasive aquatic animals. According to the work plan of the Municipal Aquatic Products Station, Chongming has a total of 12 townships and 216 inspection points (paddy fields and their ditches) included in the scope of the census, and the objects of the inventory are Fushou snail, brown cloud agate snail (African large snail), bullfrog, red-eared painted turtle (Brazilian turtle), Protocrayfish (crayfish), largemouth black perch and other 15 species of exotic aquatic organisms, mainly grasping the number, distribution range, occurrence area, degree of harm and other 15 species of alien aquatic organisms.
According to the information provided by the Chongming District Agricultural Technology Extension Center, according to the plan, the census of invasive aquatic animals will be fully completed by the end of November this year. Through the collection of relevant data and samples, the analysis and judgment of the main transmission and diffusion pathways, risk levels and diffusion trends of invasive alien species provide data support for the scientific prevention and control and effective governance of invasive aquatic species.
According to the news released on the website of the Department of Agriculture and Rural Affairs of Zhejiang Province on June 13 this year, the Department of Agriculture and Rural Affairs of Zhejiang Province recently issued the "Implementation Plan for the Census of Invasive Aquatic Animals from Outside Zhejiang Province" to comprehensively deploy and promote the census of invasive aquatic animals in our province.
"The census of invasive aquatic animals is an important part of the census of invasive alien species in agriculture." According to the Department of Agriculture and Rural Affairs of Zhejiang Province, through the census, understand and grasp the basic situation of the number, regional distribution, occurrence area, degree of harm and development trend of invasive aquatic animals in the province, comprehensively find out the general situation of invasive aquatic animals in our province, establish data archives of invasive aquatic animals, improve the database of invasive aquatic animals, and provide basic data support for the scientific prevention and control of invasive aquatic animals.
According to the requirements of the census of invasive aquatic animals of the Ministry of Agriculture and Rural Affairs, combined with the actual situation, Zhejiang Province takes the eight major river systems as the main line, focusing on the census of 6 invasive species such as tilapia, leopard-striped winged catfish, crocodile eel, Fushou snail, red-eared painted turtle (Brazilian turtle), bullfrog and other foreign species that need attention, such as protocrayfish. The census work is divided into inventory, investigation and detailed investigation. Among them, the inventory is required to be completed in early June, completed at the end of July, and completed by the end of October.
Wintering ability and hardiness largely determine the geographical distribution of invasive species, and some have argued that some invasive species have difficulty overwintering naturally in the northern part of the continent. However, the surging news noted that in addition to the southern provinces and municipalities, Heilongjiang Province and Jilin Province and other places have also launched a census of invasive aquatic animals.
For example, according to the news on the website of the Qitaihe Municipal Government of Heilongjiang on August 25, the Municipal Agriculture and Rural Affairs Bureau recently held a meeting to promote the census of invasive aquatic animals in Boli County. In the Daxiang section of Dasizhan Town, Jixing River Basin, Boli County, the staff of the Municipal Agriculture and Rural Bureau conducted a census of invasive aquatic animals in Boli County on the spot, and at the same time trained the enumerators of the County Aquatic Service Station and the Agricultural and Rural Bureau of the Three Districts to guide them on how to standardize sampling, classification, screening, photography, and upload the data to the invasive alien species census management system. Through training, we will effectively improve the comprehensive prevention and control capabilities of invasive aquatic animals and maintain ecological balance.
August 10, Jilin Wang Qing. Under the guidance of the Provincial Aquatic Technology Extension Station, the county agricultural and rural bureau organizes the local census of invasive aquatic species.
The census was combined with the on-site training meeting of the grass-roots system, and a total of 33 aquatic technology extension personnel at the county and township levels participated. Under the guidance of the census team of the Provincial Aquatic Products Station, according to the main ecological environment types and water distribution of Wangqing County, scientifically design the inspection points, determine the sampling points in the section of the Gaya River in Dongming Village, Wangqing Town, arrange hanging nets, ground cages and other nets, carry out on-site fishing operations, and conduct on-site inspections. Technicians classify and count all catches, calculate the ratio of numbers and weights of each invasive aquatic animal at the sampling point, etc.
Wangqing County Agriculture and Rural Bureau said that Wangqing County will continue to go deep into fishery waters, grasp the basic information such as the species, number, distribution range and occurrence area of invasive aquatic animals, and complete the objectives and tasks of the census with high standards and high quality, laying a solid foundation for continuously strengthening the prevention and control of invasive alien species.
Editor-in-Charge: Wang Jun Photo Editor: Jin Jie