A citizen of Ruzhou, Pingdingshan, Henan Province found a strange fish in the river. Appraised by relevant departments, this fish is an exotic species crocodile Monopterus albus. As a carnivorous fish, it has caused great damage to the local ecological environment. As a result, local authorities organized professional teams to capture the crocodile eel, which was called? A killer in the water? Its body length can be as long as three meters. Because it has no natural enemies, it poses a great threat to other creatures. In order to catch this Chinese alligator eel, the local authorities have pumped and drained the water in Yunchan Lake. After a long-term operation for one month, 300,000 cubic meters of water has been pumped and drained. Capturing alien species through live webcast, alligator eel has been locked in a U-shaped culvert connecting the upstream and downstream of the lake. The relevant person in charge said that due to the large span of the culvert, the middle part is U-shaped.

Crocodile eel's kiss is as short as crocodile's, and the teeth of upper and lower jaws are as sharp as daggers. It is extremely destructive. If placed in natural waters, it will bring disaster to the local water ecology. It originated in North America and was introduced to China as an ornamental fish. Some consumers bought this species out of curiosity. Crocodile eels grow rapidly, and many people choose to put them in natural waters because ordinary water tanks can't feed them. This has caused a serious ecological crisis. Successful alien species invasion can directly and indirectly reduce the biodiversity in the invaded area, at the same time, it will have a great impact on the structure and function of the local ecosystem, and even lead to the extinction of local species and the gradual degradation of the ecosystem. However, because alien invasive species have no natural enemies, they can constantly reproduce and expand, which seriously threatens the production systems such as forests, grasslands and farmland, and also poses a great threat to economic development. Relevant departments should seriously manage illegal invasive species.