Sea snow
The phenomenon of particle rain in the sea is known as sea snow .
A wide range of phytoplankton at the ocean surface has the collection of large armies of crustaceans result, from copepods (copepods) or krill that feed on this. Their excretions stick with dead algae and form a permanent flow of particles in the ocean. This sea snow sinks into deeper zones and supplies there u. a. the bottom organisms of the deep sea with food, but can also get back to the surface through buoyancy and there lead to real algal blooms .