抄録
To create a new artificial shallow area in a hypoxic bay, we propose methods to determine the depth
for the area and how to evaluate its effectiveness. The study was conducted in Mikawa Bay, Japan,
which is a semi-enclosed sea and is regularly nutrient enriched. As a result, in summer, serious hypoxia
is observed in the bottom layer, which becomes progressively lethal to the macrobenthos. Therefore the
aim of developing a new shallow area should be to avoid hypoxia.
The circumstances on which we developed the new method are described. Future technical subjects
for the environmental restoration are also described.