Ya - if you fish at the res (or even beach your boat) - there is a fee.
Good on em - might as well get their cut.
They have a rising scale - Non-residents pay more and there is a fee for any floaties brought along. Folks from the Hazeltons pay less, cousins don't pay I believe.
I worked on a deal for an American chap by the way of Singapore for a "Fishing Cabin" up the river a ways and have gone over for a few social evenings and fishing mornings.
Great dude, great food, great wine, great fishing - what's not to like.