What Is Wrong With That Sea Fish?

The first time a child is scolded, it throws a tantrum. It's like, but suffering is often necessary for growth. I heard this several years ago. The japanese are fond of a particular sea fish which is very tasty. But there was no taste any more in those fishes. R what is wrong? Why aren't they tasty? And then they discovered in the sea, the chase. Those fish are chased by sharks. And when they chase, they the fear, they produce a particular kind of hormon or something that gives taste. They're bigger, but more of them, but no taste.