<i>Myxobolus nagaraensis</i> infection in freshwater gobies <i>Rhinogobius</i> spp. from Sakai River, Kanagawa Prefecture, Japan

DOI
  • Hioki Naoyuki
    日本大学 生物資源 科学部 獣医学科学術研究サークル基礎班
  • Kurusu Kana
    日本大学 生物資源 科学部 獣医学科学術研究サークル基礎班
  • Shima Mizuho
    日本大学 生物資源 科学部 獣医学科学術研究サークル基礎班
  • Masuda Aya
    日本大学 生物資源科学部 獣医 学科 医動物学研究室
  • Matsumoto Jun
    日本大学 生物資源科学部 獣医 学科 医動物学研究室

Bibliographic Information

Other Title
  • 境川水系ヨシノボリ属魚類における 粘液胞子虫 <i>Myxobolus nagaraensis</i>（ナガラシズクムシ）寄生例

Abstract

Myxobolus nagaraensis (Myxozoa: Myxosporea) was first reported in 2007 in freshwater gobies (Rhinogobius sp.) from Nagara River in the Gifu Prefecture, Japan. Although freshwater gobies are common fish species found in rivers of the Kanagawa Prefecture, infection of these fishes with M. nagaraensis has not been reported. Therefore, this study surveyed for M. nagaraensis infection in freshwater gobies from Sakai River, which runs through the Kanagawa Prefecture. Freshwater gobies were captured using hand nets at different locations along the Sakai River in November 2017 and February 2018. Diseased fish displaying enlarged abdomens and nodules in the caudal peduncle were caught from 2 locations which were 20 km apart. Cysts excised from these diseased fish contained parasitic spores resembling the morphology of M. nagaraensis. DNA was extracted from the cysts and the small subunit ribosomal RNA gene was amplified (SSU rDNA). Based on homology search, the amplified partial product was 99.6% identical with M. nagaraensis SSU rDNA (Accession no. AB274267). This is the first report of M. nagaraensis infection in freshwater gobies from a river in Kanagawa. Since prevalence of the parasite and its pathogenicity to the goby populations are still unclear, continued examination of other rivers in the prefecture is crucial.

Journal

Details 詳細情報について

  • CRID
    1390282752321414272
  • NII Article ID
    130007699822
  • DOI
    10.32225/nkpmnh.2019.40_1
  • ISSN
    21896712
    03889009
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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