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不少研究者发现,在拖网渔业中,增大网囊的菱形网目起不到保护和释放幼鱼的作用。因此,挪威科研人员研制出一种名叫 Troll-x 栅的幼鱼释放装置,它要比方形目网囊更能有效地保护和释放幼鱼。
Many researchers have found that in trawl fisheries, increasing the size of the rhombic meshes of the cysts can not serve to protect and release juveniles. As a result, Norwegian researchers developed a juvenile release device called the Troll-x grid that protects and releases juveniles more effectively than the square-shaped mesh.