Is it legal to prohibit fishing after the reservoir is privately contracted?

Legal, like a puddle dug by contracted land.

But if the reservoir is dug by occupying cultivated land, it is public property.

It doesn't make sense, but you can't stop a fisherman once in a while.

If you just cheat him, you can't do anything about him.

If you encounter this situation, you can tell the other party that this is a contracted fish reservoir, and it is strictly forbidden to go fishing at some time (when the fish is not eating well).

Can't say that fishing is absolutely not allowed.