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Ichthyophthirius multifiliis, often termed " Ich ", [1][2] is a parasitic ciliate described by the French parasitologist Fouquet [who?] in 1876. Only one species is found in the genus which also gave name to the family. The name literally translates as "the fish louse with many children". The parasite can infect most freshwater fish species and ...
Cymothoa exigua is a parasitic crustacean which enters a fish through its gills and destroys the fish's tongue. [ 7 ] Velvet disease. Oodinium, a genus of parasitic dinoflagellates, causes velvet disease in fish [ 8 ] Adult Siamese fighting fish (Betta splendens) with velvet disease.
Bacteria. Enteric redmouth disease is a bacterial infection of freshwater and marine fish caused by the pathogen Yersinia ruckeri. It is primarily found in rainbow trout and other cultured salmonids. The disease is characterized by subcutaneous hemorrhaging of the mouth, fins, and eyes. It is most commonly seen in fish farms with poor water ...
Protozoan infections are responsible for diseases that affect many different types of organisms, including plants, animals, and some marine life. Many of the most prevalent and deadly human diseases are caused by a protozoan infection, including African sleeping sickness, amoebic dysentery, and malaria. The species originally termed "protozoa ...
In 1841, Gabriel Valentin found flagellates that today are included in Trypanoplasma in the blood of trout. [4] [5] The genus (T. sanguinis) was named by Gruby in 1843, after parasites in the blood of frogs. [6] In 1903, David Bruce identified the protozoan parasite and the tsetse fly vector of African trypanosomiasis. [7]
Marine protists are defined by their habitat as protists that live in marine environments, that is, in the saltwater of seas or oceans or the brackish water of coastal estuaries. Life originated as marine single-celled prokaryotes (bacteria and archaea) and later evolved into more complex eukaryotes. Eukaryotes are the more developed life forms ...
Henneguya salminicola Ward, 1919. Henneguya zschokkei or Henneguya salminicola is a species of a myxosporean endoparasite. It afflicts several salmon in the genera Oncorhynchus and Salmo, [2][3] where it causes milky flesh or tapioca disease.[1] H. zschokkei is notable for its reliance on an exclusively anaerobic metabolism as well as its lack ...
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. [ 1 ] The entomologist E. O. Wilson characterised parasites as "predators that eat prey in units of less than one". [ 2 ]