Sparrow eel can be eaten, but its eggs are poisonous. In China, Shanghai, Chongqing, Shaoguan and other places, Monopterus albus, as an alien invasive species, poses a great threat to other local fish and may destroy the local ecosystem. The finch eel is known as the "freshwater fish killer" and is not protected. In China, Monopterus albus is one of the top ten most ferocious freshwater fish in the world, which is the same as the alien species "Man-eating Pomfret" banned by the state.

Introduction of finch eel:

Monopterus albus is a general term for large fishes of the family Monopterus, which are found in North America or Central America. They mainly live in fresh water and have sharp teeth. They are all ferocious carnivorous fish.

Crocodile eel is huge, with a maximum length of 3 meters and a weight of 160 kg, which is the largest of the seven existing species of eel. Crocodile eel is listed as one of the top ten most ferocious freshwater fish in the world, and it eats almost all living things in the water. Because of eating everything, few other fish live in the waters where it lives.

The above contents refer to:

Baidu encyclopedia-sparrow eel