Phytoplankton is a synonym of microalga.
As nouns the difference between microalga and phytoplankton
is that microalga is any of many microscopic photosynthetic protists, often living as single cells and floating as plankton while phytoplankton is plankton which obtain energy by photosynthesis.
microalga
English
Noun
Any of many microscopic photosynthetic protists, often living as single cells and floating as plankton.
Synonyms
* phytoplankton
Antonyms
* macroalga
phytoplankton
English
Synonyms
* microalga
Derived terms
* phytoplankton bloom