Onshore investigation of intertidal to subtidal mass benthic mortality assemblage: Preliminary assessment of the rocky reef coastline uplifted by the 2024 Noto Peninsula Earthquake (M7.6)

DOI Web Site Web Site 参考文献24件
  • Sato Kei
    Institute of Liberal Arts and Science, Kanazawa University
  • Teruya Shinnosuke
    Coastal Branch of Natural History Museum and Institute, Chiba
  • Kato Moe
    Institute for Promotion of Diversity and Inclusion, Kanazawa University The Kyushu University Museum
  • Seki Asuka
    Graduate School of Natural Science and Technology, Kanazawa University
  • Mizuno Eri
    Graduate School of Natural Science and Technology, Kanazawa University
  • Nakashima Shunsuke
    Graduate School of Natural Science and Technology, Kanazawa University
  • Sasaki Ryuta
    College of Science and Engineering, Kanazawa University
  • Jenkins Robert G.
    College of Science and Engineering, Kanazawa University

書誌事項

公開日
2026-03-02
DOI
  • 10.3800/pbr.21.25
公開者
日本プランクトン学会、日本ベントス学会

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説明

<p>The sudden coastal uplift resulting from the 2024 Noto Peninsula earthquake exposed the previously subtidal and intertidal habitats, providing a unique opportunity to document the biotic community and immediate effects of geological disturbances on it. This study describes the characteristics of the benthic death assemblages around the Kaiso fishing port, which experienced approximately 3.6–3.9 m of uplift, with special attention to the vertical distribution of coastal benthos inhabiting Kaiso Reef. Our field surveys were initiated 66 days after the earthquake, integrating quadrat-based sampling with direct observation of emergent marine habitats. 92 molluscan and 5 echinoderm species were found in our quadrat investigation. The soft tissues of most molluscan individuals remained, indicating that their in situ life postures were undisturbed. Given this premise, species richness was estimated to have peaked between the pre-disaster middle to lower intertidal and uppermost subtidal zones, particularly in areas with reduced wave exposure. Additionally, the surveys identified several notable species at the Kaiso fishing port, including the Near-Threatened coral Oulastrea crispata and bivalve Pinna bicolor, both of which have their northernmost records in the Sea of Japan from the Noto area. The uplifted zone presents a rare opportunity to examine the subtidal fauna from terrestrial vantage points, yielding novel perspectives on marine biodiversity in the Sea of Japan. Also, these findings provide critical baseline data for monitoring post-uplift ecological succession against a backdrop of ongoing climate change.</p>

収録刊行物

  • Plankton and Benthos Research

    Plankton and Benthos Research 21 (1), 25-35, 2026-03-02

    日本プランクトン学会、日本ベントス学会

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