What is advection? What determines zoo plankton distribution?

Zooplankton distribution is determined by physical and biological factors Advection – how currents and other processes move water and the organisms in water. In other words advection is the physical environment The red current (atlantic current) moves heat and plankton up to coastal norway. Climate change leads to more warm water coming from the south. Greenland coats gets cold water from arctic - that’s way greenland is so much colder. The coast are more rich in nutrients and the open water is momre oligotrophic. no arctic species on norwegian coast. But we don’t sea english and french species either.