挪威一家水产研究所研究出一种新型网格养鱼法。该法是在水中设置多层网格状养鱼设施,其中心有一圆柱体,圆柱体与各层相通,鱼苗和饲料都从该处投放。鱼儿平时到圆柱体内吃食,然后又回到各层网格内自由游动, A Norwegian fish research institute has developed a new mesh fish culture law. The law is set up in the water multi-grid fish-shaped facilities, the center of a cylinder, the cylinder connected to the various layers, fry and feed are put from there. Fish usually eat into the cylinder, and then back to the layers of the grid free movement,