Virginia Cooperative ExtensionSmith, Stephen A.Schwarz, Michael H.2019-04-122019-04-122019-02-22http://hdl.handle.net/10919/88930Discusses several species of protozoan parasites of fish, their life cycles, how they affect fish, and methods of treatment.3 pagesapplication/pdfen-USVirginia Cooperative Extension materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University.Aquaculture & SeafoodExtension publicationhttps://pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/600/600-205/600-205(CNRE-38P).pdfTrichodinaTrichodinellaParatrichodinaDipartiellaparasitesfish