Changes of the geomorphology and its driving force sea level rise
are slow processes and consequently no significant changes have been
observed in the short period between QSR 2004 and QSR 2009. The same
conclusion applies to the area of seagrass beds and the zoobenthic
biomass; both are more or less stable. An exception is formed by the
Baltic tellin Macoma balthica which has strongly decreased.
Intertidal mussel beds continued to decline except for the eastern
Dutch Wadden Sea
