I think if fishing is your primary goal, the BVI might not be your best choice of charter location anyway. But it sounds as though the charter companies will eventually get caught up with this ridiculous law.

Edit: Is it an annual fee? I just noticed that the fee is only $110 per boat, which is really not very much as far as anything that goes into a boat! The charter companies should just charge a small additional fee to everyone who wants to fish to cover it, what's the big deal?