In the tank displaying Japanese Carpet Shell, you can see how Japanese Carpet Shell purify the water (their purifying action). The water, which has turned green due to chlorella (phytoplankton), gradually becomes clearer thanks to Japanese Carpet Shell. Many bivalves, such as Japanese Carpet Shell, cockles, and cockles, live on the tidal flats. These bivalves filter out organic matter from the water and eat it, thereby helping to purify the ocean.

Let's take a look at Japanese Carpet Shell shells. They come in a variety of colors, including black, black and white, brown and white, and blue and white, and their patterns are also diverse. Even among the brown and white types like the one in the picture, each one has a different color and pattern. The fact that each shell has a different color and pattern is a characteristic of Japanese Carpet Shell, and it is said that these vary depending on the region and environment in which they live. Japanese Carpet Shell from Tokyo Bay are said to have many "stylish" patterns with a clear contrast between black and white.

The relationship between Japanese people and Japanese Carpet Shell is ancient, with many clam shells having been found in shell mounds from the Jomon period. However, Japanese Carpet Shell are currently in decline. Production has fallen to one-fortieth of its peak in the 1980s, and most of Japanese Carpet Shell we eat are imported from China and Korea. In order to restore Japanese Carpet Shell production, it is necessary to restore lost tidal flats and shallow areas.