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首页> 外文期刊>Marine biology >Burrowing behaviour inferred from feeding traces of the opheliid polychaete Euzonus sp. as response to beach morphodynamics
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Burrowing behaviour inferred from feeding traces of the opheliid polychaete Euzonus sp. as response to beach morphodynamics

机译：取食行为是由ophophid polychaete Euzonus sp的进食痕迹推断的。作为对海滩形态动力学的反应

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摘要

The distribution of the opheliid polychate Euzonus sp. and the orientation of its feeding traces were examined in a wave-dominated Pacific sandy beach of central Japan by periodical sampling from June to December 2006. This species occurred constantly within sediments at mid-intertidal level, although its horizontal distributions were variable depending on changes of the beach profiles. These facts indicate that Euzonus sp. moved horizontally seaward or landward within the substratum in response to the shifting beach face due to changes of wave conditions from the ocean. By analysing the orientation of feeding traces, the adaptive burrowing behaviour of this species in response to beach topographical changes was revealed: Euzonus worms burrowed horizontally to various directions in a relatively stable condition of beach topography, whereas they moved preferentially landward under a heavy erosion of the beach face by a storm. These findings indicate that the burrowing behaviour prevents Euzonus sp. from excessive burial and washing out due to the beach morphodynamics.
机译：ophophid polychate Euzonus sp。的分布。并于2006年6月至2006年12月在日本中部的一个以波浪为主的太平洋沙滩中进行了定期调查，研究了其觅食痕迹的方向。尽管其水平分布随变化而变化，但该物种经常在潮间中期出现在沉积物中。海滩配置文件。这些事实表明，Euzonus sp。由于来自海洋的波浪条件的变化，响应于不断变化的海滩面，在底层内水平向海或向内移动。通过分析觅食轨迹的方向，揭示了该物种对海滩地形变化的适应性穴居行为：Euzonus蠕虫在海滩地形相对稳定的条件下向各个方向水平穴居，而它们在沙丘严重侵蚀下优先向内移动。一场暴风雨袭击了海滩。这些发现表明，穴居行为阻止了Euzonus sp。由于海滩形态动力学而导致的过度埋葬和冲洗。

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  • 来源
    《Marine biology》 |2008年第6期|p.1199-1206|共8页
  • 作者

    Koji Seike;

  • 作者单位

    Department of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境生物学;
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