Tides, Sediments, and the Distribution of Organisms

  • Karsten Reise
Part of the Ecological Studies book series (ECOLSTUD, volume 54)


Where a sandy coast slopes gently towards the sea, astronomic tides expose marine sediments to terrestrial conditions. These tidal flats constitute and ecotone, where organisms find their distributional limits because the physical conditions change, where they are abundant and productive because food resources are plenty, and where both marine and terrestrial organisms are present. The coastal slope and the tidal range determine the areal extension of the tidal flats. The tidal cycle determines the frequency and length of low tide exposure. Waves and tidal currents transport and sort all sediment particles, determine their distribution, stability, and composition. Together with local climate and geomorphology, these factors constitute the environmental matrix of tidal flats, affecting the distributional patterns of the organisms.


Clay Migration Quartz Europe Beach 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • Karsten Reise
    • 1
  1. 1.LitoralstationList/SyltGermany

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