Fish and shellfish diseases caused by marine protists

Abstract

Many protists specifically parasitize marine organisms, and some of them cause diseases in economically important fish, shellfish or other invertebrates. In this chapter, we give general accounts of considerable protistan parasites for the fishery industry with their impacts and control measures, if any. Parasites of fish include amoebae, ichthyosporea, flagellates, X-cells with an unknown taxonomic position, and ciliates, and those of invertebrates include Marteilia and Perkinsus for shellfish, and a kinetoplastid for edible ascidians.