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Processes limiting mussel bed restoration in the Wadden-Sea
de Paoli, H.; van de Koppel, J.; van der Zee, E.; Kangeri, A.; van Belzen, J.; Holthuijsen, S.; van den Berg, A.; Herman, P.M.J.; Olff, H.; van der Heide, T. (2015). Processes limiting mussel bed restoration in the Wadden-Sea. J. Sea Res. 103: 42-49. https://dx.doi.org/10.1016/j.seares.2015.05.008
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Author keywords
    Mussels; Wadden Sea; Restoration; Coir net; Predation; Waves
Auteurs  Top 
  • de Paoli, H., meer
  • van de Koppel, J., meer
  • van der Zee, E., meer
  • Kangeri, A.
  • van Belzen, J., meer
  • Holthuijsen, S., meer
  • van den Berg, A., meer
  • Herman, P.M.J., meer
  • Olff, H.
  • van der Heide, T.
Abstract
    This paper reports on experimental restoration of mussel beds in the Wadden Sea and the processes that might limit successful restoration of this foundation species (i.e. substrate, predation, hydrodynamics). The importance of substrate, predation, hydrodynamic conditions and location on mussel restoration success was studied using artificially created mussel beds. Experimental beds established on a stable substrate (coir net) were compared with control beds established on sand, at three locations in the Wadden Sea. Their persistence was followed over time. The results revealed a near disappearance of all experimental beds in just over 7 months. Providing a stable substrate did not improve mussel survival. Predation could not explain the disappearance of the beds, as the maximal predation rate by birds was found to be insufficient to have a significant effect on mussel cover. Differences in wave conditions alone could also not explain the variation in decline of mussel cover between the locations. However, the gradual disappearance of mussels from the seaward side of the bed strongly suggested that hydrodynamic conditions (i.e. combined effects of waves and current) played an important role in the poor persistence of the artificial beds. Our results highlight the fact that restoration of mussel beds in dynamic areas cannot simply be implemented by mussel transplantation, particularly if additional measures to prevent wave losses are not taken, even when artificial substrate is provided to facilitate mussel adhesion.
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