What is the "strange fish" that is around for many days?Expert interpretation

Author:Changan Jian, Central Politica Time:2022.08.26

Recently, the actions of "strange fish" crocodile birds around the Central Park of Ruzhou City, Pingdingshan, Henan Province have attracted attention. As of the 25th, the enclosure continued. Why does this foreign species from North America appear in the park lake in Ruzhou? Is it really necessary to spend nearly a month and dry the lake and wrap?

Where is the difficulty of arresting crocodile?

It is reported that the lake of the park is very wide and the water varies from water. The deepest place reaches seven or eight meters, and the deepest position is the hiding place of the crocodile, that is, in the U -shaped pipeline. One is that the light is poor, and the other is that the oxygen is not sufficient enough. There are also silt, waterweed, etc., which adds a lot of difficulty to the surrounds of staff.

Is the cost of drying the lake and the crocodile croaks?

According to reports, the early stages of the enclosure were mainly salvaged by the staff of the manager, including drainage work, etc., and the cost was not particularly high in this area. However, in the past few days, the location of the crocodile cricket is special. To catch it in the pipeline, there are some difficulties in the scenic area staff. There are already obligations to join in, nearly 20 people.

Because this fish is more cunning and the situation in the cave is unknown, the next enclosure needs to be continued for a while.

Crocodile birds are by no means a "blessing"!

Crocodile birds not only appear in Henan. In the past many years, Guangdong, Guangxi, Fujian, Henan, Sichuan, Jiangsu and other provinces have all the wild distribution records of crocodile cigarettes.

How to better prevent "foreign invasion species"? Mu Xidong, a researcher at the Pearl River Aquatic Research Institute of the Chinese Academy of Aquatic Sciences, said that the "Law of the People's Republic of China", which was officially implemented on April 15, 2021, stipulated the content of preventing foreign species invasion and protecting biodiversity, and required formulation of foreign invasion species List and management methods. To this end, this year's relevant departments formulated the "Notice on the General Plan on the Employment of Foreign Invasion Species" to conduct a national census of 10 major foreign aquatic creatures, including crocodile crocodiles.

Expert: Foreign species cannot be released or discarded at will

According to the staff of the Pingdingshan Aquarium, "crocodile crickets are meat fish, and there are few natural enemies in the wild. They are at the highest end of the food chain. Class, crustaceans, amphibians, crawled, birds, small and medium mammals, and carrion. Therefore, it is extremely destructive to the ecology.

Ren Dapeng, a professor of Chinese Agricultural University, said that "foreign invasion species" and "foreign species" are two different concepts. Foreign species are not all invasive species. Whether it belongs to the invasive species requires long -term scientific assessment. But as long as it is a foreign species, no matter whether it is included in a list, there are relevant strict management regulations. "Article 60, paragraph 3 of the" Biological Safety Law "clearly stipulates that no unit or individual may introduce, release or discard foreign species without approval."

Ren Dapeng also said that for consumers or residents, if foreign species have been cultivated, it is not allowed to release and discard the wild in accordance with the law, because it will severely damage our personal safety and ecological environment. "Article 81 of the" Biological Safety Law "specifically stipulates strict legal responsibilities. If it is released or discarded by unauthorized release of foreign species, the relevant departments of the people's governments at or above the county level shall be ordered to be arrested or retrieved in accordance with their duties. The release or discarded foreign species shall be fined 10,000 yuan and 50,000 yuan.

Therefore, if you ca n’t afford it or do n’t want to raise it, you need to send it to the relevant departments, or to do harmless treatment, and you will never be allowed to release or discard the wild. "