Phytoplankton bloom/crash

Illustration of a Phytoplankton blooom

An illustration indicating an intermittent concentration of phytoplankton

Illustration of a low concentration of phytoplankton

Illustration of a high concentration of phytoplankton

Illustration of a mixed phytoplankton community

Illustration of Bioturbation

Illustration of grazing using an urchin for example

Illustration of grazing using a turtle for example