1. About the ions constituting of the artificial breeding water, the influence of those components and concentration on the aquatic organisms is under study. Also, we investigate about the physiological effect caused by feeding a long time period and are developing “more suitable environment water”.
2. In the initial breeding of some types, so many aquatic organisms would die than in the mid-term breeding. This case would happen because of the unsuitable environment around the larvae and the low tolerance to the change. So we have been solving these problems and demonstrating the environment for the initial breeding of the larvae.
3. In the long term breeding of R.A.S., some materials derived from the feed to the breeding water will often accumulate. So we study the efficient methods of draining these materials out of the system.