Nitrogen and phosphorus are nutrients needed by microscopic plants called phytoplankton.

The upwelling research has implications for the fishing industry because the temperature changes affects the water loaded with the tiny plants called phytoplankton.

Unlike terrestrial ecosystems, the majority of primary production in the ocean is performed by free-living microscopic organisms called phytoplankton.

Lakes and oceans contain many single-celled organisms called phytoplankton.

Red tides are caused by microscopic sea plants called phytoplankton.

Microscopic forms that live suspended in the water column are called phytoplankton.

First, the organic waste will provide nutrients for the production of vastly larger amounts of algae called phytoplankton.

Small plant organisms that live near the surface and use sunlight to produce food are called phytoplankton.

In doing so, the mussels strain out and consume microscopic plants, called phytoplankton, that are the basis of the aquatic food chain.

In addition concentrations of chlorophyll (in the microscopic plants called phytoplankton) needs to be below 0.5 parts per billion.