Unexpected biotic resilience on the Japanese seafloor caused by the 2011 Tōhoku-Oki tsunami

DOI HANDLE PDF Web Site PubMed 被引用文献14件 参考文献35件 オープンアクセス

書誌事項

公開日
2014-12-17
資源種別
journal article
権利情報
  • https://creativecommons.org/licenses/by-nc-sa/4.0
  • https://creativecommons.org/licenses/by-nc-sa/4.0
DOI
  • 10.1038/srep07517
公開者
Springer Science and Business Media LLC

説明

On March 11(th), 2011 the Mw 9.0 2011 Tōhoku-Oki earthquake resulted in a tsunami which caused major devastation in coastal areas. Along the Japanese NE coast, tsunami waves reached maximum run-ups of 40 m, and travelled kilometers inland. Whereas devastation was clearly visible on land, underwater impact is much more difficult to assess. Here, we report unexpected results obtained during a research cruise targeting the seafloor off Shimokita (NE Japan), shortly (five months) after the disaster. The geography of the studied area is characterized by smooth coastline and a gradually descending shelf slope. Although high-energy tsunami waves caused major sediment reworking in shallow-water environments, investigated shelf ecosystems were characterized by surprisingly high benthic diversity and showed no evidence of mass mortality. Conversely, just beyond the shelf break, the benthic ecosystem was dominated by a low-diversity, opportunistic fauna indicating ongoing colonization of massive sand-bed deposits.

収録刊行物

  • Scientific Reports

    Scientific Reports 4 (1), 7517-, 2014-12-17

    Springer Science and Business Media LLC

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