Translation of "Shoal" in Japanese

But disoriented and separated from the shoal, they're easy pickings.

‎群れからはぐれ ‎泳ぎもおぼつかない ‎簡単に捕れる

There was this one incredible day. A big shoal of dream fish.

‎すごい光景も見た ‎これはサレマの大群