Diel vertical migration (DVM), also known as diurnal vertical migration, is a pattern of movement used by some organisms, such as copepods, living in the ocean and in lakes. The adjective "diel" (IPA: / ˈ d aɪ. ə l /, / ˈ d iː. əl /) comes from Latin: diēs, lit. 'day', and refers to a 24-hour period.

2021年10月28日 · As the greatest migration on Earth, the daily vertical movement of zooplankton in the ocean has a massive influence on sea life and the global climate. This echogram illustrates the ascending and descending phases of the diel vertical migration through the water column.

2021年12月7日 · In the classic diel vertical migration pattern (yellow arrows), zooplankton such as marine worms (yellow) travel to the surface to feed at night when predators such as fish are absent.

2023年12月11日 · Deep-sea creatures, like zooplankton, ascend at night in Diel Vertical Migration (DVM) for nourishment and safety. This synchronised journey showcases nature's marvels and significantly influences Earth's Carbon Cycle.

Diel vertical migration (DVM) is exhibited by plankton all over the ocean, not only zooplankton, but by dinoflagellates and cyanobacteria too.

Why does vertical migration from the ocean twilight zone occur? There are a number of possible reasons for vertical migration. One explanation is that it helps animals living in the twilight zone avoid predators, which can hunt by seeing the faint outline of their prey above them.

2020年4月30日 · Diel vertical migration (DVM) refers to the daily, synchronized movement of marine animals between the surface and deep layers of the open ocean. This behavior is the largest animal migration on the planet and is undertaken every …

2025年1月7日 · The ocean is home to the planet’s most astonishing and colossal migration phenomenon, occurring silently beneath the waves every single day. Known as diel vertical migration, this process involves an estimated 10 billion tons of animals making daily excursions up and down the ocean’s depths.

2017年11月30日 · From jewels of bioluminescent light to tentacled and toothy hunters, the creatures of the oceans’ vast vertical migration fuel a massive exchange of nutrients, oxygen and carbon that sustains life both above and below the waves.

2023年10月31日 · The three recognized types of diel vertical migration are nocturnal vertical migration, reverse migration, and twilight diel vertical migration. During nocturnal vertical migration, organisms ascend to the surface around dusk, spend the night at the surface, and then migrate back to depth around dawn.