No, you race up to them with a gunboat and shoot 2 warnings shots accross the bow. The third one goes into a boat.

Quite standard practice, and very much applicable in situations where these roaming fleets are steeling quota that they have no right to.

This is exactly what the Chinese fishing fleets are counting on.

They won't go away and they WILL take every single living thing from the ocean unless someone steps in.

They sunk Chinese fishing boats before.

https://en.m.wikipedia.org/wiki/Lu_Yan_Yuan_Yu_010