Occurrence and Distribution of Shipworms (Mollusca: Bivalvia: Teredinidae) and Two New Records of <i>Bankia</i> species along the Coast of Hokkaido, Japan

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  • Librando-Descallar Angem
    Graduate School of Environmental Science, Hokkaido University Science Department, College of Natural Sciences and Mathematics, Mindanao State University
  • Ling Zhengyi
    Graduate School of Environmental Science, Hokkaido University
  • Haga Takuma
    Department of Geology and Paleontology, National Museum of Nature and Science
  • Okino Tatsufumi
    Graduate School of Environmental Science, Hokkaido University Faculty of Environmental Earth Science, Hokkaido University

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  • Occurrence and Distribution of Shipworms (Mollusca: Bivalvia: Teredinidae) and Two New Records of Bankia species along the Coast of Hokkaido, Japan

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<p>Shipworms of the family Teredinidae were collected from driftwood along the coastal areas of Hokkaido between October 2020 and November 2021. Identification of species recorded a total of five species pervaded wooden debris: Teredo navalis Linnaeus, 1758, Lyrodus pedicellatus (Quatrefages, 1849), Bankia setacea (Tryon, 1863), Bankia bipennata (Turton, 1819), and Bankia carinata (Gray, 1827), the latter two were warm-water elements and considered a new record of species discovered from the temperate zone of Hokkaido waters. This suggests the possibility that ocean currents and suitable environmental conditions caused the settlement of these teredinids in driftwood along the vast coastal stretches of Hokkaido. Also, B. bipennata and B. carinata have been most likely distributed along the Sea of Japan and brought accidentally by typhoons from the Kuroshio region and Tsushima and Tsugaru currents to Hokkaido, respectively. Moreover, biogeographic patterns within Teredinidae from other coastal areas in the country and elsewhere were examined from the available literature.</p>

Journal

  • Sessile Organisms

    Sessile Organisms 40 (1), 1-12, 2023-03-14

    THE SESSILE ORGANISMS SOCIETY OF JAPAN

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