Abstract
Through a 7.5m deep under water observation.window provided in Monbetsu City, you can sec the turbid Okhotsk water. The substances that make the water cloudy are important sources of food for the lives of various marine species in the Sea.
Thus the Sea abounds with sea lives and assures high fishery production. To make non-turbid seas much more productive, it would be of utmost necessity to direct our major efforts to study further so as to constructa large-scale facility for creating artificial streams of water containing rich dissolved oxygen and running upward through the water (up welling).
