Reprint of “Monitoring of a Posidonia oceanica bed (Punta Manara, Eastern Ligurian Sea, Italy) and the associated molluscs twenty years after: What's new?”

► The 85 study determined the conservation of the Posidonia bed of Punta Manara. ► The aim was to evaluate the effect of anthropogenic disturbances. ► Our analysis found reduction of shoot density and regression of the lower limit. ►Results are decrease in the specimens number and increase in the species number. ► Time (period) is the main factor influencing malacological assemblages.