corralling the shoal away from the open ocean and into the shallows. 将鱼群赶到远离开阔海洋的浅水区
But the anchovy shoal has already been located... 但这里的凤尾鱼群已经被发现了
Tens of thousands of rays in a single shoal. 数以万计的蝠鲼聚集在一起
As the shoal is driven nearer the surface, 当饵鱼被赶上海面的时候
and they have discovered a shoal of baitfish. 发明了一种利用浅滩钓鱼的方法