Biogeomorphology in the field: bedforms and species, a mystic relationsip

V. van Lancker, J.S. Houziaux, M. Baeye, D. van den Eynde, M. Rabaut, K. Troost, T. Vermaas, T.A.G.P. van Dijk

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Abstract

Fine-scale seabed mapping (Results showed that highest abundances of some ecosystem engineering species (e.g. the tubeworm Owenia fusiformis, and the razor clam Ensis directus) occur near bedload convergence zones resulting from a mutually evasive flood- and ebb-dominant channel system. Such zones are at the end of the channels, hence also finegrained sediments, food and larvae are trapped. The combination of the coarser-grained bedload with the deposition of fines is indeed the optimum for a lot of suspension and detritus feeders. Still, highest abundances occur at the fringes of such a system where stress levels are intermediate. Hypotheses were successfully tested along the Dutch coastal zone. Those insights are important to assess changes in seafloor integrity and hydrographic conditions, two descriptors to define Good Environmental Status within Europe’s Marine Strategy Framework Directive.
Original languageEnglish
Title of host publicationMARID 2013
Subtitle of host publication4th International Conference on Marine and River Dune Dynamics. Bruges, Belgium, 15-17 April 2013
EditorsV. van Lancker, T. Garlan
Place of PublicationOostende, Belgium
PublisherVLIZ
Pages277-284
ISBN (Print)978-2-11-128352-7
Publication statusPublished - 15 Apr 2013
EventMARID IV Marine and River Dune Dynamics 2013 - Provinciaal Hof, Brugge, Belgium
Duration: 15 Apr 201317 Apr 2013
Conference number: 4

Publication series

NameVLIZ Special publication
PublisherVLIZ
Volume65
ISSN (Print)1377-0950

Workshop

WorkshopMARID IV Marine and River Dune Dynamics 2013
Abbreviated titleMARID IV
Country/TerritoryBelgium
CityBrugge
Period15/04/1317/04/13
Other15-04-2013 - 17-04-2013

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