Video Transects Reveal That Tidal Sand Waves Affect the Spatial Distribution of Benthic Organisms and Sand Ripples

J. H. Damveld, K. J. van der Reijden, C. Cheng, L. Koop, L. R. Haaksma, C. A.J. Walsh, K. Soetaert, B. W. Borsje, L. L. Govers, More Authors

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

The sandy seabed of shallow coastal shelf seas displays morphological patterns of various dimensions. The seabed also harbors a rich ecosystem. Increasing pressure from human-induced disturbances necessitates further study on drivers of benthic community distributions over morphological patterns. Moreover, a greater understanding of the sand ripple distribution over tidal sand waves may improve morphological model predictions. Here we analyzed the biotic abundance and ripple morphology in sand wave troughs and crests using video transects. We found that both the epibenthos and endobenthos are significantly more abundant in sand wave troughs, where ripples are less abundant and more irregularly shaped. Finally, we show that camera systems are relatively quick and effective tools to study biotic spatial patterns in relation to seabed morphology.

Original languageEnglish
Pages (from-to)11,837-11,846
JournalGeophysical Research Letters
Volume45
Issue number21
DOIs
Publication statusPublished - 2018

Keywords

  • benthic community
  • North Sea
  • sand ripples
  • seabed morphology
  • tidal sand waves
  • video transects

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    Damveld, J. H., van der Reijden, K. J., Cheng, C., Koop, L., Haaksma, L. R., Walsh, C. A. J., Soetaert, K., Borsje, B. W., Govers, L. L., & More Authors (2018). Video Transects Reveal That Tidal Sand Waves Affect the Spatial Distribution of Benthic Organisms and Sand Ripples. Geophysical Research Letters, 45(21), 11,837-11,846. https://doi.org/10.1029/2018GL079858