Ago Bay

[2] The Ago Bay area was originally known as "Miketsu-kuni," an allusion to its status as a food source for the surrounding community.

In addition, a red tide of Heterocapsa circularisquama blooms in 1992 killed off much of the pearl oyster population, and an uptick in hypoxia wiped out more marine life in the 1990s and in 2002.

This led to a large-scale tidal flat restoration project in 2009, centered on a 2-hectare area of the bay near Ishibuchi in Shima.

[5] A flap gate was opened in the dike to increase water flow, clams were stocked, and seagrasses were planted.

A public education program was also put into place, and students in nearby schools sampled and observed the changes in marine life.