Migration of the bivalve Macoma balthica on a highly dynamic tidal flat in the Westerschelde estuary, The Netherlands

Population dynamics of the tellinid clam Macoma balthica (L.) were studied at a highly dynamic intertidal sandflat in the Westerschelde estuary, south-western Netherlands. In order to study temporal development of density and population structure (12 size classes from 0.3 to 20 mm), 3 point sampling stations were sampled fortnightly from March 1992 to March 1998. Within the same period, spatial population dynamics was studied seasonally on a spatial grid (700 x 800 m, 43 plots, distance between the plots 100 m), which covered a range in bedlevel height from-50 to +140 cm relative to mean tide... Mehr ...