New host records of monacanthid fish for three kudoa spp. (k. septempunctata, k. thyrsites, and k. shiomitsui) prevalent In the olive flounder (paralichthys olivaceus), with the description Of k. parathyrsites n. sp. from a black scraper (thamnaconus modestus)

Kasai, Akihiro; Li, Ying-Chun; Mafie, Eliakunda; Sato, Hiroshi

dc.creator	Kasai, Akihiro
dc.creator	Li, Ying-Chun
dc.creator	Mafie, Eliakunda
dc.creator	Sato, Hiroshi
dc.date	2022-10-03T09:23:22Z
dc.date	2022-10-03T09:23:22Z
dc.date	2016
dc.date.accessioned	2022-10-25T08:53:24Z
dc.date.available	2022-10-25T08:53:24Z
dc.identifier	http://www.suaire.sua.ac.tz/handle/123456789/4623
dc.identifier.uri	http://hdl.handle.net/123456789/93672
dc.description	Journal Article
dc.description	Kudoa septempunctata (Myxosporean: Multivalvulida) is known as a cause of foodborne disease associated with consumption of raw flesh of the olive flounder (Paralichthys olivaceus). Knowledge of its life cycle, particu- larly alternate annelid hosts and reservoirs or susceptible fish hosts in natural waters, may facilitate disease control in aqua- culture farms. Our recent survey of myxosporean infection in monacanthid fish in natural waters around Japan revealed in- fection with three kudoid species prevalent in the olive floun- der, i.e., K. septempunctata, Kudoa thyrsites, and Kudoa shiomitsui. Of the 51 black scrapers (Thamnaconus modestus) examined, five fish were infected: two fish with K. septempunctata and three with K. thyrsites. One of the fish infected with K. septempunctata was also infected with a K. thyrsites-like species. One of the 17 threadsail filefish (Stephanolepis cirrhifer) and two of four unicorn leatherjackets (Aluterus monoceros) were parasitized with K. shiomitsui. Three modest filefish (Thamnaconus modestoides) had no kudoid infection. K. septempunctata from a black scraper fished in the Inland Sea of Japan off Yamaguchi had 6–8 (predominantly 7) shell valves/polar cap- sules, whereas K. septempunctata found in another black scraper from the Sea of Japan off Tottori had 5 or 6 (predominantly 6). However, the two isolates displayed iden- tical 18S and 28S ribosomal RNA gene (rDNA) nucleotide sequences, which were also identical to the isolates from the olive flounder. K. thyrsites from the Inland Sea of Japan off Yamaguchi and Sea of Japan off Tottori and K. shiomitsui from the Sea of Japan off Shimane and western Pacific Ocean off Kochi were also morphologically and genetically characterized. They were found to be coincident with the pre- vious reports from olive flounders. Furthermore, the K. thyrsites-like species found in a black scraper from the Inland Sea of Japan off Yamaguchi was morphologically and genetically characterized; a new species, Kudoa parathyrsites n. sp., is erected for this species. The relation- ships of the new species with K. thyrsites and related species as well as those of K. shiomitsui with Kudoa pericardialis and related species parasitizing the pericardium are briefly discussed.
dc.format	application/pdf
dc.language	en
dc.publisher	Springer
dc.subject	Kudoa septempunctata
dc.subject	Kudoa thyrsites
dc.subject	Kudoa parathyrsites n. sp
dc.subject	Kudoa shiomitsui
dc.subject	Kudoa pericardialis
dc.subject	Thamnaconus modestus
dc.subject	Stephanolepis cirrhifer
dc.subject	Aluterus monoceros
dc.subject	Multivalvulida
dc.title	New host records of monacanthid fish for three kudoa spp. (k. septempunctata, k. thyrsites, and k. shiomitsui) prevalent In the olive flounder (paralichthys olivaceus), with the description Of k. parathyrsites n. sp. from a black scraper (thamnaconus modestus)
dc.type	Article