Definition of plankton:
25 1. Hydrographic, Plankton, and Dredging Records of the Scripps Institution for Biological Research of the University of California, 1901 to 1912, compiled and arranged under the supervision of W. E. Ritter by Ellis L. Michael and George F. McEwen.- "The Subspecies of the Mountain Chickadee Vol. 17, No. 17, pp. 505-515", Joseph Grinnell.
- "South with Scott", Edward R. G. R. Evans.
This appears to be the case in the luminous bacteria and fungi and perhaps the great majority of forms which make up the marine plankton, Noctiluca, dinoflagellates, jelly- fish, ctenophores and even the sessile sea pens.- "The Nature of Animal Light", E. Newton Harvey.