You searched for: “epiplanktonic
epiplanktonic (adjective) (not comparable)
Relating to living things that swim in the upper surface of the water in a sea: The epiplanktonic forms of life were talked about on the TV documentary and were said to live in the topmost part of the ocean water above the 100 fathom line.
This entry is located in the following unit: plankto-, plankt-, -plankton (page 1)