The Oshima tidal flat in Shunan City, Yamaguchi Prefecture, is an artificial tidal flat that was constructed to create favorable marine environments. We, the Oshima Tidal Flat Growers Association, have been raising manila clams as part of our conservation activities to make the tidal flat an even more productive sea. In doing so, seaweed and algae like eelgrass and Japanese eelgrass have grown as a side effect, giving the tidal flat a new value. Our work is becoming part of the movement towards achieving a sustainable society.

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