What term describes the American eel's life cycle of living in freshwater and spawning in saltwater?

Answer

Catadromous existence

The American eel is defined by its catadromous existence, meaning it spends the majority of its life in fresh water before migrating to the sea to reproduce, a characteristic that sets it apart from relatives like salmon.

What term describes the American eel's life cycle of living in freshwater and spawning in saltwater?
animalfisheel