In the Oshima area of Tokuyama-Kudamatsu Port, artificial tidal flats are being constructed using earth and sand dredged from the port. These tidal flats are projected to be used as Manila clam fisheries, and a wide variety of approaches are being considered and studied through experiments in situ, with the goal of securing a stable supply of Manila clam resources. The findings indicated that laying cover nets was a highly effective means of facilitating bottom-clinging for juvenile clams and preventing feeding damage for adult clams. Of most environmental conditions are well suited to Manila clam fisheries. The results of studies of the quantity of Manila clam resources under these conditions indicate that a suitable Manila clam life cycle can be formed in these artificial tidal flats, and they can serve as a viable fisheries.
