They are known to make diel vertical migrations to the surface at night.

It can be seen to rise and fall each day in keeping with diel vertical migration.

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

They are the only known stomiids that do not seem to conduct significant diel vertical migrations.

It lives in the mesopelagic zone of all oceans and performs diel vertical migration.

A few days later the light was changed to a constant low light and the organisms still displayed diel vertical migration.

Sabertooth fish are solitary animals; it is not known whether they undergo diel vertical migrations.

They exhibit diel vertical migration, moving closer to the surface in night time and diving deeper during day time.

Diel vertical migration is a common behavior; many marine species move to the surface at night to feed, then return to the depths during daytime.

It conducts a diel vertical migration, spending the day in deeper water and rising to shallower waters at night.

This movement pattern is known as Diel vertical migration and is also exhibited by other oceanic organisms.

This pattern of diel vertical migration by a leech is only known to occur in Montezuma Well.

However, phytoplankton and zooplankton capable of diel vertical migration are often concentrated in the pycnocline.

Diel vertical migration in stratified tidal flows: Implications for plankton dispersal.

Catch data off southern Portugal suggest this species has a preference for rocky substrates, and may conduct a diel vertical migration.

Electronic tagging has shown that they also undergo diel vertical migrations which bring them closer to the surface from dusk to dawn.

They descend to the mesopelagic zone as they mature, but do not exhibit a diel vertical migration pattern.

The false bottom was shallower during the night and deeper during the day; this was the first recording of diel vertical migration.

Zooplankton (e.g. Daphnia) exhibit diel vertical migration.

For example, many aquatic animals make a vertical migration (Diel vertical migration), travelling a few hundred metres up and down the water column.

North Pacific hake are nocturnal feeders that undergo diel vertical migrations off the bottom in order to feed on a variety of fishes and invertebrates.

It is one of the few sharks that conduct a diel vertical migration, staying in deep water during the day and moving into surface waters at night to feed.

The species also appears to undergo diel vertical migrations as evidenced by markedly decreased catches in demersal night trawls, possibly in response to prey movement.

The lanternfish are thought to do this to avoid predation, and because they are following the diel vertical migrations of zooplankton, upon which the lanternfish feed.

Although zooplankton are primarily transported by ambient water currents, many have locomotion, used to avoid predators (as in diel vertical migration) or to increase prey encounter rate.