Identification of fish species involved with ciguatera fish poisoning in Okinawan waters by using phylogenetic analysis

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  • OSHIRO AKIKO
    Hygienic Chemistry Section, Okinawa Prefectural Institute of Health and Environment
  • SUMI TAKUTO
    Graduate School of Engineering and Science, University of the Ryukyus
  • IMAI HIDEYUKI
    Faculty of Science, University of the Ryukyus

Bibliographic Information

Other Title
  • 分子系統樹解析による沖縄島近海産シガテラ原因魚種判別法

Abstract

<p>　Ciguatera fish poisoning (CFP), known as a seafood-borne illness, is caused by consumption of fish contaminated with ciguatoxins in tropical and subtropical seas. The ciguatera fishes Variola louti, Lutjanus monostigma and Lutjanus bohar have an absolute majority in the Ryukyu Archipelago, southwestern Japan. We obtained V. louti, L. monostigma and L. bohar and differentiated them from morphologically similar species (Lutjanus fulviflamma, Lutjanus russellii, Lutjanus argentimaculatus, Plectropomus leopardus and Variola albimarginata) from around Okinawajima Island and Okinawan Islands. We developed a cluster analysis of the molecular phylogenetic tree by using mitochondrial DNA 16S rDNA sequences of them and the bone and muscle of the fish that ciguatera patients had left on the plate. Molecular phylogenetic analysis showed that the method is useful for successfully identifying species without exception.</p>

Journal

  • NIPPON SUISAN GAKKAISHI

    NIPPON SUISAN GAKKAISHI 88 (4), 271-283, 2022-07-15

    The Japanese Society of Fisheries Science

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