Microsporidian Infection in Rryukyu Ayu Plecoglossus altivelis ryukyuensis on Amami Oshima Island
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- Niwa Nobuhisa
- Department of Fisheries, Kagoshima University
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- Yamamoto Atsushi
- Department of Fisheries, Kagoshima University
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- Araki Kyosuke
- Department of Fisheries, Kagoshima University
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- Kamaishi Takashi
- National Research Institute of Aquaculture, Fisheries Research Agency
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- Shinomiya Akihiko
- Department of Fisheries, Kagoshima University
Bibliographic Information
- Other Title
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- 奄美大島のリュウキュウアユに見られた微胞子虫症
- アマミ オオシマ ノ リュウキュウアユ ニ ミラレタ ビホウシチュウショウ
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Abstract
Cultured Ryukyu ayu Plecoglossus altivelis ryukyuensis was found to be infected with a microsporidian parasite on Amami Oshima Island in January 2009. The parasite formed numerous cysts on the visceral organs and skin of the diseased fish. High temperature seemed to suppress the development of the parasite; in 2009 and 2010, the disease occurred in the 0-year fish from April to August, and afterwards the prevalence decreased dramatically in September and October. These characteristics well resembled glugeosis in ayu P. altivelis altivelis in other areas of Japan. This parasite seems to be indigenous to Amami Oshima Island, because it was detected in the museum specimens of wild Ryukyu ayu caught in 1991. Average dimensions of spores from Ryukyu ayu were slightly shorter and wider than those of Glugea plecoglossi, but the ranges of the measurements were overlapped. From the above characteristics and molecular analysis of SSU rRNA, it was concluded that the present microsporidian was included genus Glugea, but the specific identity remained to be clarified.
Journal
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- Fish Pathology
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Fish Pathology 46 (3), 80-86, 2011
The Japanese Society of Fish Pathology
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Keywords
Details 詳細情報について
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- CRID
- 1390282681438753408
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- NII Article ID
- 10029692326
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- NII Book ID
- AN00063165
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- ISSN
- 18817335
- 0388788X
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- NDL BIB ID
- 11249555
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed