<i>Diphyllobothrium stemmacephalum</i> Detected in Common Bottlenose Dolphin (<i>Tursiops truncatus</i>) Caught off the Kii Peninsula

  • ISHISAKA Soichiro
    Laboratory of Preventive Veterinary Medicine and Animal Health, College of Bioresource Sciences, Nihon University
  • SEGAWA Takao
    Laboratory of Preventive Veterinary Medicine and Animal Health, College of Bioresource Sciences, Nihon University
  • ISHIKAWA Hajime
    Taiji Office, Institute of Osaka Marine Research Co
  • ITOU Takuya
    Laboratory of Preventive Veterinary Medicine and Animal Health, College of Bioresource Sciences, Nihon University

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Other Title
  • 紀伊半島沖で捕獲されたハンドウイルカ(<i>Tursiops truncatus</i>)より検出された イルカ裂頭条虫(<i>Diphyllobothrium stemmacephalum</i>)
  • 紀伊半島沖で捕獲されたハンドウイルカ(Tursiops truncatus)より検出されたイルカ裂頭条虫(Diphyllobothrium stemmacephalum)
  • キイ ハントウオキ デ ホカク サレタ ハンドウイルカ(Tursiops truncatus)ヨリ ケンシュツ サレタ イルカ レットウ ジョウチュウ(Diphyllobothrium stemmacephalum)

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Abstract

<p> The excretion of tapeworm strobilla from the anus of a common bottlenose dolphin caught off the Kii Peninsula was observed. Based on the arrangement of the reproductive organs, it was assumed to belong to the genus Diphyllobothrium Cobbold, 1858 (the family Diphyllobothriidae). In addition, molecular diagnosis based on the mitochondrial COX-1, the ribosomal ITS1, and 18S rRNA gene was performed. As a result of the morphological observation and molecular analyses, the species was identified as Diphyllobothrium stemmacephalum. This is the first report of the detection of Diphyllobothrium stemmacephalum in a bottlenose dolphin in Japan.</p>

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