02/02/2025
Diel vertical migration of zooplankton is used to describe the daily, coordinated migration of microscopic marine creatures (zooplankton) between the ocean's surface and deeper layers. These animals usually rise to the surface at night to feed on phytoplankton and descend to deeper depths during the day to avoid predators, essentially engaging in a game of "hide-and-seek" with their predators based on light levels. This migration is regarded as one of the biggest animal migrations on Earth.