Origin and evolution of the parasitic cyclopoid copepods.

  title={Origin and evolution of the parasitic cyclopoid copepods.},
  author={Ju-shey Ho},
  journal={International journal for parasitology},
  volume={24 8},
  • Ju-shey Ho
  • Published 1994 in International journal for parasitology
Six of the 10 recognised families of the order Cyclopoida are parasitic, with 4 of them occurring on marine invertebrates and the remaining 2 on freshwater gastropods and fishes, respectively. A cladistic analysis of the 10 families indicates that evolution of parasitism occurred twice in the history of the cyclopoids. The first attempt was made by the marine epibenthic ancestors seeking food and shelter in sessile tunicates--the ascidians. This event led to the evolution of 2 ascidicolous… CONTINUE READING