Abstract
Fish cultivation experiment, and sea cucumber cultivation system that adapted renewable energy was designed in Aomori prefecture, located in the Northernmost part of Honshu, with an aim of creating a new fishery in fishing ports without any power supply systems. Fish cultivation experiment was conducted on October 2017, at the Kita-Kanegasawa fishing port. The devices that were installed near a fishery cage captured 1,595 horse mackerels. Water temperature sensors, and communication devices were installed for monitoring the water quality. In addition, batteries, an air supply pump, a wind powered generator and solar panels were installed for maintaining a cultivating environment. A sea cucumber cultivation system was designed, because sea cucumbers have an aversion to air, to confine in the water area of the fishing port by transporting air from an air supply pump to the concrete blocks creating air layers, which is installed at the mouth of fishing port. “Rotation flow Type” turbines and blocks are currently in production. This system was installed at Ishizaki fishing port in March 2018.
