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Endogenous circatidal rhythm in the Manila clam Ruditapes philippinarum (Bivalvia: Veneridae)

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Abstract

Manila clams, Ruditapes philippinarum, removed from their natural environment and maintained for 9 weeks in continuously immersed conditions exhibited a clear endogenous circatidal rhythm in oxygen consumption. The clams exhibited a semidiurnal rhythmicity in oxygen consumption after showing a diurnal pattern in the first few days (5 to 7 d) of the experiment. The results of the present study indicate that activity rhythms of clams are controlled not only by exogenous factors, but also by an endogenous circatidal periodicity.

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Authors and Affiliations

  1. Biological Oceanography Division, Korea Ocean Research & Development Institute, Ansan, P.O. Box 29, Seoul 425-600, Korea, , , , , , KR

    W. S. Kim, H. T. Huh & J.-H. Lee

  2. Institut für Meereskunde, Universität Kiel, Düsternbrooker Weg 20, D-24105, Kiel, Germany, , , , , , DE

    H. Rumohr

  3. Department of Oceanography, Seoul National University, Seoul 151-742, Korea, , , , , , KR

    C. H. Koh

Authors
  1. W. S. Kim
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  2. H. T. Huh
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  3. J.-H. Lee
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  4. H. Rumohr
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  5. C. H. Koh
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Received: 8 April 1998 / Accepted: 1 February 1999

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Kim, W., Huh, H., Lee, JH. et al. Endogenous circatidal rhythm in the Manila clam Ruditapes philippinarum (Bivalvia: Veneridae). Marine Biology 134, 107–112 (1999). https://doi.org/10.1007/s002270050529

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  • DOI: https://doi.org/10.1007/s002270050529

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