Supplement Table 1-core data

Absolute abundances of molluscs in two cores at Piran 1 and Piran 2, including two surface living assemblages collected by Van Veen grabs at the same sites in 2014 (1 mm mesh size). Complete valves or fragments with umbo preserved were selected from the >1 mm sieve fraction of each increment, identified to species level, and counted. For each species, the higher number of single valves (either right or left) was added to the number of double-valved specimens to get the final count in each increment.