But there are other forms of vertical migration worth mentioning.

This is a major process in the ocean and without vertical migration it wouldn't be nearly as efficient.

It undergoes a daily vertical migration from deep waters to near the surface.

Thus, they perform a daily vertical migration of 15 meters, no small feat a creature only 3 mm long.

Krill are thought to undergo between one and three vertical migrations from mixed surface waters to depth each day.

Her first publication was Phototactic vertical migration in marine dinoflagellates.

This has often been referred to as diurnal or diel vertical migration.

The most common strategy for leaving an estuary is reverse tidal vertical migrations.

This species may make vertical migrations, approaching the surface at night to feed.

The deep sea, for example, is the scene of daily vertical migrations.