Eels, although often considered
as “river fish,” are actually migratory fish that travel between the sea and
river.
The spawning area of Japanese eel is located near
Guam, approximately 2,000 km from Japan.
Hatched larvae were drifted by ocean current to their habitats (Taiwan, China, Korea and Japan), grew up until they were fully matured and made large scale migration back to the sea where they were born for spawning event.