When do wild freshwater eels eat?

Summer is the best time to taste eels. As early as 1000 years ago, the Japanese discovered the efficacy of eels in eliminating bitter summer. Since the Edo period, the habit of eating eels on ugly days has gradually spread throughout Japan.

Freshwater eel is a migratory fish, which will descend into the river. It is native to the sea, grows in fresh water and then returns to the sea to lay eggs. Every spring, a large number of young eels (also known as white eggs and eel lines) enter the estuary in droves from the sea. Japanese eels grow up in freshwater rivers and become adult eels. In summer, they begin to migrate to the sea, that is, they swim from the river to the ocean to lay eggs, which is just the opposite of trout and salmon in the middle reaches of the ocean migrating upstream to the river to lay eggs.