zooplanktivoroushttp://www.oed.com/dictionary/zooplanktivorous_adj%3Ftab%3Dmeaning_and_usezooplanktivorous, adj.
First published 2017

zooplanktivorousadjective

  1. 1971–
    Feeding on zooplankton; characterized by such behaviour.
    1. 1971
      The zooplanktivorous fish Alestes baremose.
      Journal Zoology vol. 165 412
    2. 1997
      The larva is also likely to get eaten by the zooplanktivorous predators that abound on reefs.
      G. S. Helfman et al., Diversity of Fishes xxiii. 421/2
    3. 2001
      Fish adapted to zooplanktivorous feeding [have]..a slender body and a small terminal mouth.
      Oikos vol. 95 320/1

Originally published as part of the entry for zoo-, comb. form

zooplanktivorous, adj. was first published in 2017.