Eel and hairtail not the same fish, because eel and hairtail are different in species, shape and habits:

1, different species: eel belongs to the genus Anguilla of Anguilla, hairtail belongs to the genus Hairtail of Perciformes, and the species of the two fishes are quite different, so they are not the same fish.

2. Different colors: The colors of eels and hairtail are also very different. The whole color of eels is black, so they look darker. The overall color of hairtail is silver gray, and the color looks bright.

3. Different habits: Eels are migratory fish. They usually live at the junction of fresh water and salt water, so they can live in both fresh water and seawater. Hairtail belongs to marine life, which can only live in seawater.

Eels and white eels are the same kind of fish, and it can also be said that white eels are one kind of eels, because white eels are also called Japanese eels, which belong to one kind of eels and are also eels with higher yield. Therefore, white eel is also a kind of eel. However, although they are a kind of eel, they are still different from eels. For example, their origin is only in Japanese waters and fresh water, while other species of eel are distributed in different areas.