Usually at a definite stage in the life cycle, e.g. anadromous, catadromous, diadromous, amphidromous, potamodromous, oceanodromous.

• 通常在生命周期的时期，例如溯河洄游产卵，降海洄游，河海洄游的，河海两域洄游的，河川洄游，海洋洄游。