What's the plural form of macroplankton? Here's the word you're looking for.
Answer
The noun macroplankton can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be macroplankton.
However, in more specific contexts, the plural form can also be macroplanktons e.g. in reference to various types of macroplanktons
or a collection of macroplanktons.
Examples
Hatchlings will feed on macroplankton, small snails, crustaceans and other invertebrates such as hydrozoans and jellies.