plankton

Aquatic organisms that drift or swim weakly. Phytoplankton are the plant forms of plankton (e.g., diatoms), and are the dominant plants in the sea. Zooplankton are the animal forms of plankton. Picoplankton are all forms of plankton which size is comprised between 0.2 and 2 micrometers (mostly bacteria).

Typically microscopic aquatic organisms that drift or swim weakly. Phytoplankton are the plant forms of plankton (e.g. diatoms), and are the dominant plants in the sea. Zooplankton are the animal forms of plankton.

Aquatic organisms that drift or swim weakly. Phytoplankton are the plant forms of plankton (e.g. diatoms), and are the dominant plants in the sea. Zooplankton are the animal forms of plankton.