Application of DNA Metabarcoding for Identifying the Diet of Asian Clam (Corbicula fluminea, Müller, 1774)

Corbicula has often been reported as one of the most invasive freshwater species in world. It plays an important role food chains brackish water zones Korea, where it is predominant. However, detailed information on diet still lacking. The purpose this study was to identify potential prey fluminea Seomjin River using a DNA metabarcoding approach, very little known about its feeding selectivity natural conditions. A survey conducted at two sites (1 and 2) November 2021. were selected based increasing salinity gradient. dominant operational taxonomic unit pseudofeces gut content C. Microcyclops varicans (Copepoda) Oncorhynchus mykiss (Fish), respectively. alpha diversity site 1 higher than that 2. More diverse identified with low (i.e., 1). utilization method strongly recommended for determining specific predator–prey relationships complex estuarine ecosystem.