This research was conducted in March 2017 in the village of Anak Setatah. District of West Rangsang, The Kepulauan Meranti Regency of Riau Province. was The objective of this research to determine the abundance and the distribution of kerang darah (Anadara granosa), content organic sediments, and relationships between sedimentary organic content and abundance of kerang darah (A.granosa). To ach…