What is the "strange fish" arrested in Ruzhou, Henan?Expert interpretation

Recently, the actions of "strange fish" crocodile birds around the Central Park of Ruzhou City, Pingdingshan, Henan Province have attracted attention.

On the 27th, the reporter learned from the management party of the Central Park of Ruzhou City, Henan Province that the "strange fish" appeared in Yunzhan Lake has been captured and confirmed that one female and one male and one male and two migrant biological crocodiles. Find, the two fish are about 70 cm and 90 cm in length.

At present, 2 crocodile crickets in Ruzhou, Henan have been disinfected by local teams.

Earlier, the park continued to pump the lake for nearly a month to capture crocodile birds. According to reports, on the morning of the 27th, a arrest team said that at 12 o'clock on the 26th, one, one small, two crocodile birds were captured, and the large weight was more than 25 pounds. When the water is almost the same, it will be arrested in the depth of more than 100 meters of the pipeline. At that time, the water level was less than one meter. "

Mr. Kong, a staff member of Henan Water Resources Investment Group, said that the fish in the lake had been eaten much. It said that if no matter what, the crocodile can not only eat fish, but also attack humans near the waters.

What is this "strange fish"? Expert interpretation

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?

The early stages of the arrest of the crocodile crickets 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.

Park management: Experts speculate that suspected "human release"

Why does this suspected "strange fish" that suspected crocodile town appear in a artificial lake in Ruzhou, Henan?

"Most of the diffusion of crocodile crickets is still manually spread. This 'monster fish' discovered by Ruzhou may be released in the lake after being purchased and breeding." Scientist Gu Dangen said. The staff of the managers of Ruzhou City Central Park also told reporters that at present, relevant experts have speculated that they are suspected of "artificial release".

Gu Dangen said that at present, there are two main ways to introduce foreign fish from abroad to my country -aquaculture and watching fisheries. Because the crocodile cricket is weird, it is a common type of ornamental the aquarium to meet people's hunting needs, and it is not suitable for consumption. The crocodile boring of our country is likely to be introduced as an ornamental fish.

It is understood that in the breeding water body, there are currently many crocodile crickets, which are mainly concentrated in Guangdong. Due to the large amount of reproduction, it is easy to buy online and offline, and the price is relatively cheap. The reporter searched for "crocodile" on the e -commerce platform and found that more than a dozen dollars on a crocodile tincture can be bought.

According to Hubei Satellite TV, multiple e -commerce platforms emergencyly removed the crocodile bird. On the morning of August 26, the reporter searched on multiple e -commerce platforms searching crocodile and found that many merchants were selling seedlings and living fish.

On the afternoon of August 26, the reporter found that no merchant had sold living crocodiles, and there were only some crocodile models or specimens for sale.

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 Ministry of Agriculture and Rural Affairs and other relevant departments have formulated the "Notice on Printing and Distributing the General Plan for Foreign Invasive Species Census" to conduct a national census of 10 major foreign aquatic creatures, including crocodile crickets.

Expert: Foreign species cannot be released or discarded at will

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 approved." Ren Dapeng also said that for consumers or residents, if it has already already been, it has already been, if it has already already been Focusing on foreign species 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 impose a fine of 10,000 yuan and 50,000 yuan. Therefore, if you can't afford it or want to raise it, you need to send it to the relevant departments, or to do harmless treatment. Allowed to release or discard it in the wild. "

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